{"as_of":"2026-08-22T05:53:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:83cc88f5b1dbbc97ec9c445cd88ecfaa474313351d2d5a19b1d520870f2773ea","coverage":[{"denominator":58,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":58,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-10T14:13:17.452084Z","state":"measured"},{"denominator":58,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":58,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-21T06:32:19.484+00:00","state":"measured"},{"denominator":0,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"cited_works","source_observed_at":null,"state":"measured"}],"external_citation_measurements":[],"inbound":[],"links":{"evidence":"/evidence","html":"/paper/2501.15669/citation-record","integrity":"/paper/2501.15669/integrity","json":"/paper/2501.15669/citation-record.json","paper":"/paper/2501.15669"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.113402Z","title":"It is assumed that the transition |1⟩ ↔ |1(m)⟩ is a clock transition with frequency ω 0 (ω 0=2π × 2020","venue":null,"work_id":"6cf7fed4-75f6-42d2-905e-59b28d81fa94","year":2020},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.244815Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:48dbb861e874af909350f9a95fdcb9ebe4f0cad61d902b241f37e15c3f8d6304","observation_id":"e6080987-d383-4743-bec9-9b144727eb2a","resolution":{"observed_at":"2026-08-10T14:13:18.117768Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.029388Z","title":"Hinkley, J","venue":null,"work_id":"7cc2bd44-c2d5-4adb-92fd-04637c240793","year":2013},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.267337Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:64f071cb0043043f021636009f8c4b75b83cf76b2bc10b76ebb55e8d51f8c131","observation_id":"d6c128cc-5500-4ead-93f8-6215dd6f2e96","resolution":{"observed_at":"2026-08-10T14:13:18.034005Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.178296Z","title":"The electronic states and nuclear states must have in pairs the same parity, and their angular momenta can differ no more than one: |J − J ′| ≤ 1, |I − I ′| ≤ 1","venue":null,"work_id":"31e7c538-1fea-46ed-9c48-23b8610815f8","year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.223228Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:fdde02fae4fe77c2cc7f5a91f9fd5b7350793557857ca978b2bdd7012b7a15cd","observation_id":"86201b84-db6f-4a43-9f3f-dc7b6d52f4be","resolution":{"observed_at":"2026-08-10T14:13:18.182167Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.275990Z","title":null,"venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.275990Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:d4f16790b147cf3dcda8691f6f38c5c1ca515e23f5b3e1762937711bd553a122","observation_id":"559ff094-1b8e-4c6c-ae1f-310ebb7bbddb","resolution":{"observed_at":"2026-08-10T14:13:17.275990Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.190215Z","title":null,"venue":null,"work_id":"25c68c81-1e5b-4af6-a6d3-958e49092618","year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.218317Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:2be81bc5fb10fb08e594d3779eb5a81f5035f4e5f8bad222fbcf9b93cd5fc489","observation_id":"81fada65-ba59-429f-aa68-23ec232a5d2b","resolution":{"observed_at":"2026-08-10T14:13:18.194087Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.203125Z","title":null,"venue":null,"work_id":"3e182d58-be0f-42f9-ad4c-0e9395ddd52d","year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.213106Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:247dac42be411e87f91144cff061a0397a1fd602e30fcdbb096a03cbf5543cd6","observation_id":"6ae3731f-ca9e-410b-913e-ae151fa48a0e","resolution":{"observed_at":"2026-08-10T14:13:18.207140Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.153316Z","title":null,"venue":null,"work_id":"d6f27153-23e2-42ee-b733-96555fe30123","year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.232612Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:e5fe59088d55bec4f70c82083f68156c0cae164c8d91d8388ad26e49d5bacf55","observation_id":"5dedf467-20f9-4f00-896b-94a8be3c3e29","resolution":{"observed_at":"2026-08-10T14:13:18.157473Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.140380Z","title":null,"venue":null,"work_id":"59933e61-d67c-4c9c-9d65-78db92f39c10","year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.236801Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:c52aa765c1dd77e048ca5d3175fb77612e1c0842040d131a7aa0c6785e1e7a8c","observation_id":"f284134e-e774-45a6-b8d5-2d93305889c7","resolution":{"observed_at":"2026-08-10T14:13:18.144486Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.952734Z","title":null,"venue":null,"work_id":"ac538128-d5f3-4522-bb2a-5ebedb3af3b8","year":2003},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.296364Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:146d2b73e438dd77f41f6f2a96c83778b82a8b4ee7e59c4d8eeb99f5c648eca4","observation_id":"d31a8062-31cf-48d2-807a-4278dbd8fed4","resolution":{"observed_at":"2026-08-10T14:13:17.956641Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.127183Z","title":"61µ N, µ 3/ 2, 3/ 2 = −1","venue":null,"work_id":"f2c432c6-2169-4a52-993b-5f9cb39c8751","year":2000},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.241025Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:63c7d21a69092262fa64dc2459c1e9597c9916617253a9d3e5d6631b79ef80b7","observation_id":"c03975c3-3d17-41a8-a09b-e81fc682a62f","resolution":{"observed_at":"2026-08-10T14:13:18.131371Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.084596Z","title":"Moreover, such states with the nuclear spin I=5/2, which are relatively close to the upper clock level [I=3/2, (5f 6d) 3H 4], are quite numerous","venue":null,"work_id":"d4d7c24e-e970-48e1-b25c-139b61af8302","year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.252279Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:37503ab71305558f8748917e53b9def4417a0e6e4171260adc3dd4b9dced8773","observation_id":"9541e420-ee01-42e5-948d-82021a4773e8","resolution":{"observed_at":"2026-08-10T14:13:18.089033Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.165782Z","title":"they also contribute to the elec- tronic bridge together with the magnetic contribution","venue":null,"work_id":"fa2ff7aa-5bba-4359-aac1-4fa01b6b5af4","year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.228100Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:6a2ace640f623a0cb80f0dac9e9ed6b1d324bf9908a083d43ec0797e04bdf010","observation_id":"063d2ce7-4a0d-4164-b7ef-7bac606a5b35","resolution":{"observed_at":"2026-08-10T14:13:18.170318Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.071395Z","title":null,"venue":null,"work_id":"a7cb8551-3da8-44d5-bc0d-88a627f11108","year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.255697Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:8606bd512a25e1a3ca5664a8d0e8b8a42d1de1f2595f2395ab00608bc2ba2055","observation_id":"6a9eaf35-e90a-4b8d-9cf9-ab9d9f6fc298","resolution":{"observed_at":"2026-08-10T14:13:18.075548Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.057384Z","title":"In the ion 229Th2+, there are also several such states, similar to the intermediate isomeric state |ξ(m)⟩ in Fig","venue":null,"work_id":"4f55759c-0333-41d0-8b9a-ad4af2f3a854","year":2000},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.259073Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:5b667159b4b2ae2ec8d8dc1109b02ad753eaa3435cb8d28bec32c83e1bb69189","observation_id":"9cc33adb-1e52-4e52-a6e7-7cc44fb89dae","resolution":{"observed_at":"2026-08-10T14:13:18.062345Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.043665Z","title":"Riehle, Frequency Standards: Basics and Applications (Wiley-VCH, Weinheim, 2005)","venue":null,"work_id":"f58145e2-e59b-4659-b70b-c453cd62cda0","year":2005},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.263188Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:5c5774c7392422f040d787403faaf10084acd578d52cc56b2f81a61b022063d3","observation_id":"a2b9f67d-947f-476d-ba06-1a3d3eff8829","resolution":{"observed_at":"2026-08-10T14:13:18.048386Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.271423Z","title":"Huntemann, C","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.271423Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:01f04289f3ad2d040ace278bac3e93277bac719ec06ab989d9eecfb49eef3e4f","observation_id":"7ca9e60f-6ed4-4ed1-b475-2fabb2a1348d","resolution":{"observed_at":"2026-08-10T14:13:17.271423Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.997868Z","title":"Aeppli, K","venue":null,"work_id":"f4720cc3-1a1e-4f06-97c2-e6d80fff480c","year":2024},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.279967Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:50684d2cd78d5531e0863cd030af5c8a670b341386687712687a64fdc025b354","observation_id":"8d0f3e27-239f-4086-801c-2a7da6d49ee1","resolution":{"observed_at":"2026-08-10T14:13:18.001848Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.985846Z","title":null,"venue":null,"work_id":"461794c0-4ee3-4264-a84e-d37ad48973c5","year":2025},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.284056Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:4fa4fa2e79a8e5aa40512dcdd90cd7b80178bf8fe8d3873274329d577a996237","observation_id":"f7b6e7de-84ad-4227-b51d-febd4f64cc62","resolution":{"observed_at":"2026-08-10T14:13:17.989497Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.973662Z","title":"Kozlov, M","venue":null,"work_id":"f8d7cb0d-9d21-43e9-a818-022fd096b2bb","year":2018},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.288206Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:6c99eb31f26c66eaae529b02cff216b3846c84e316d59703e07c9e2f557e17d2","observation_id":"d77dd8f6-5496-4aa0-ad0e-c90eb3ff6b47","resolution":{"observed_at":"2026-08-10T14:13:17.977561Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.292213Z","title":null,"venue":null,"work_id":null,"year":2025},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.292213Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:5846badc77669b182de0a72cd23436b8777b5ec7c3ceb9f81027169c0ec4012f","observation_id":"43e1b79e-ff81-4f73-ae14-0ab2c08a49d0","resolution":{"observed_at":"2026-08-10T14:13:17.292213Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:18.099464Z","title":"In addition, as another level, which is similar to the state |β ⟩ in Fig","venue":null,"work_id":"4d38c0b7-60e4-46f0-aa2b-5f95f67803dd","year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.248814Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:f32802c2a593bfd87db46c5f769a5e13f4746d73753689fc6e18610a9310e7bb","observation_id":"cc6a2a69-fb03-4be6-aaa3-543237c5053f","resolution":{"observed_at":"2026-08-10T14:13:18.103977Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.939457Z","title":null,"venue":null,"work_id":"f1cb721b-0830-46ca-b8d7-28788068c431","year":1992},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.300418Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:3126599601c63c5a20474dcaa25bc66f7398a65bd073fb3e50c891b7d31ed792","observation_id":"abf1bea6-92ec-4637-97ab-41d0326e4f4d","resolution":{"observed_at":"2026-08-10T14:13:17.943665Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.925745Z","title":"Peik, Chr","venue":null,"work_id":"a5ff42c6-47e1-400f-91b7-1bd13848e48c","year":2003},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.304415Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:ab43cea9c4d1e4ae783a6168afe997dde6ae1e6c8144ef10f120f0ebfb2941f2","observation_id":"8027a1c7-2891-4b02-8cab-48d0d8d87cc3","resolution":{"observed_at":"2026-08-10T14:13:17.930013Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.308386Z","title":null,"venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.308386Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:b445c1f6ba96d41a8800cb9910f6c38908f3622f474646c1b80edaec56b4815c","observation_id":"939b42be-f4a6-4745-b6fd-f011f1b3a50c","resolution":{"observed_at":"2026-08-10T14:13:17.308386Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.312584Z","title":null,"venue":null,"work_id":null,"year":2012},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.312584Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:074fc01799086bed82de1946f0e6093bc485dc1776a8e3d1a0711b01de6451de","observation_id":"e38be131-3f10-483d-a144-1a1725c21c7c","resolution":{"observed_at":"2026-08-10T14:13:17.312584Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.895306Z","title":null,"venue":null,"work_id":"8a1d05b6-644e-4a08-bb60-a23d952ee6f9","year":1994},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.316497Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:d1353174ca7f0d0cb10276092430c2eb168b85a7d85f6a5dcd52461b8ca551fd","observation_id":"6efa1c03-8aef-4568-a81e-ed5eb5d69474","resolution":{"observed_at":"2026-08-10T14:13:17.899514Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.882095Z","title":null,"venue":null,"work_id":"9ee2e211-b565-4a72-9f10-0b72e59a75e3","year":2005},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.321441Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:a2f70f138cffd774ec247a5c1afccea40207b0520aa191f2cd8e2c1f95d1006f","observation_id":"4ce46e37-c141-427b-b21a-edd4149fe287","resolution":{"observed_at":"2026-08-10T14:13:17.886405Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.326333Z","title":null,"venue":null,"work_id":null,"year":2007},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.326333Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:6a48abdea0647bdfa4a1db0d0064553740c68bb2a8f552aac3f26048aba4a07f","observation_id":"219f8ad7-81ba-4478-a3b9-6a046a435e3f","resolution":{"observed_at":"2026-08-10T14:13:17.326333Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.860424Z","title":null,"venue":null,"work_id":"611d7273-936c-4fa7-9802-8d8acf9929f4","year":2009},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.331374Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:44413c831a66ce24083631b68724fc7dac010792b425e0d1cb875c9376ccc051","observation_id":"e5156203-1738-4151-b1af-f7cc92391ce3","resolution":{"observed_at":"2026-08-10T14:13:17.864383Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.846180Z","title":"Seiferle, L","venue":null,"work_id":"66c8fad8-2cde-4f3e-9cf6-c05cde7c1140","year":2019},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.335695Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:31d03ed9478bef3415a89eef9464c79692c8236371400b6ab5209ca81067bbb7","observation_id":"66a5f2de-be35-4327-bfbe-e41cf1bc9b39","resolution":{"observed_at":"2026-08-10T14:13:17.850946Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.831345Z","title":"Yamaguchi, H","venue":null,"work_id":"2cfc5059-7dcf-4deb-ab7d-d550cfd2e37f","year":2019},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.340672Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:b343788a8836529d12579314b3429eb93de5e72a6fecd2700ebfafc6472a56fe","observation_id":"64a5dc4d-e03d-41ff-9a2e-87e476bda860","resolution":{"observed_at":"2026-08-10T14:13:17.836058Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.818217Z","title":"Sikorsky, J","venue":null,"work_id":"cb19583d-28fd-49b0-b38c-9b168d9fa793","year":2020},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.345048Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:8492ab7c5c45856b1af6b5fcdfb0f5dd5da2d96af82225336e9b32d17152fab9","observation_id":"ad23ce10-d391-4ab8-a36c-4f6d71e28e23","resolution":{"observed_at":"2026-08-10T14:13:17.822497Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.804394Z","title":"Kraemer, J","venue":null,"work_id":"61cbc199-e9f3-4180-87bb-6fb68ae0bbd0","year":2023},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.349132Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:de0480e8a64eb3e4089c2f571f3de2c09927466899883d3bf4d46df7db3ae431","observation_id":"b423e426-349e-4458-bd06-fe3a0df31cc9","resolution":{"observed_at":"2026-08-10T14:13:17.808880Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.791216Z","title":"Tiedau, M","venue":null,"work_id":"0b18b2f9-bd4c-4f63-925d-23edaf26276c","year":2024},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":34,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.353103Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:f75fbad576c6a8577eca822bbee29ec46840425c09e8e9ea3a0bf3797b15e64a","observation_id":"37c67a91-0c12-4b92-8810-cee5ec93fe60","resolution":{"observed_at":"2026-08-10T14:13:17.795321Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.778823Z","title":"Elwell, Chr","venue":null,"work_id":"96067f67-799f-4ba7-b045-80bb1b3a2576","year":2024},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.357353Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:d2489b023d95c85ef386aa60ea420ca59e8a9ae483ec876c58a6709ef3e0a1f2","observation_id":"f782a874-9f8b-4d9a-b5c5-901ddfa51187","resolution":{"observed_at":"2026-08-10T14:13:17.782924Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.362022Z","title":"Zhang, T","venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.362022Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:b4483993740479b125a2afe05e42a140de69d1c1a98bbbde7a1f0a3d5137fc12","observation_id":"e9e60b98-621d-492e-b2b0-89a94412152a","resolution":{"observed_at":"2026-08-10T14:13:17.362022Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.758049Z","title":"Zhang, L","venue":null,"work_id":"9c7748d9-594a-4743-8401-a92a8d9d108b","year":2024},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.366429Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:700f65dbe5519a6fd82d59da518e1926af6116860f054e601c55b926cc57fa20","observation_id":"cb371137-b2cd-488b-9b85-c541ff6caf2c","resolution":{"observed_at":"2026-08-10T14:13:17.761559Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.745730Z","title":null,"venue":null,"work_id":"3804610d-a7ae-4582-9617-386fdc79a76f","year":2024},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":38,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.370491Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:3bea8ef9141cab7671a43540e834564e83fbbce3c167d965488351a613a822db","observation_id":"eac4f6f0-50b5-4e4f-871e-1f7d65fae8a2","resolution":{"observed_at":"2026-08-10T14:13:17.749903Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.732055Z","title":null,"venue":null,"work_id":"7aff5f1c-ce13-40c3-8907-c9078b080768","year":2010},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.374619Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:98631e954c2e28c0d4b3c199e8b5d377c385784a3b81b36b246a4a9282d7d04d","observation_id":"16786e80-3e0b-4204-8240-d64e72a781cb","resolution":{"observed_at":"2026-08-10T14:13:17.736379Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.718418Z","title":null,"venue":null,"work_id":"a3a432e2-a20f-4437-b5d1-883dfcfb3261","year":2019},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":40,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.378646Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:36e0658b5dc00e962ec57490ff80d8e6d2f26dae9479f548abd47e32b9eba93b","observation_id":"0e974431-a2ea-4acc-8fb0-7c0cf523adab","resolution":{"observed_at":"2026-08-10T14:13:17.722741Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.705282Z","title":null,"venue":null,"work_id":"e228c07e-07e2-4dc0-bda8-a0338321a91b","year":2019},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":41,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.383160Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:1337cfaa164f8923e624ebe7f9c62dcc6dd49b491b5585cdffb62a5063edb03f","observation_id":"7d75f3e1-03eb-4499-b9b4-12c649f7db9e","resolution":{"observed_at":"2026-08-10T14:13:17.709404Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.691611Z","title":"Cai, G.-Q","venue":null,"work_id":"487cfd40-dbf4-4ec5-b609-bda1c7b2a546","year":2021},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":42,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.387211Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:dcbeae25f3480815e471b1b14283cc1e687bcac16eccc51331d44714a1f51686","observation_id":"6318a2c6-d67b-4858-8bac-525b9e491e3f","resolution":{"observed_at":"2026-08-10T14:13:17.695987Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.678030Z","title":null,"venue":null,"work_id":"6b45f703-1768-4ba5-9711-23a196955298","year":2024},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":43,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.391080Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:e67aab14a7f12fe375293d4650f92dde703eb6701d8ea508a4b192d4aba5f128","observation_id":"3f9fd856-59b0-40b4-bc9f-8e5b56095221","resolution":{"observed_at":"2026-08-10T14:13:17.682357Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.663937Z","title":null,"venue":null,"work_id":"aa526a88-df4f-46ab-b130-213167af0bd5","year":1968},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":44,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.395056Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:3fd3880ec261d5e52d6ecdc03ce2aec59c567ffafc10d9932c92963b7dc30d48","observation_id":"a43e4e10-4e6a-44c2-9236-058431536e4c","resolution":{"observed_at":"2026-08-10T14:13:17.668675Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.649456Z","title":"Hinneburg, M","venue":null,"work_id":"4b3f56e1-f008-4404-84bc-6733ae6886e3","year":1979},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":45,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.398836Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:86879a51181d64f015419ec60652e8668952c348ce3cfae6ad8988666bbd0cad","observation_id":"d70a0e39-22d6-4e82-9b54-971977f98f0d","resolution":{"observed_at":"2026-08-10T14:13:17.653704Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.634883Z","title":"Hinneburg, Z","venue":null,"work_id":"f1fe47ae-8efd-4b1d-89a0-6c090b785a57","year":1981},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":46,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.402356Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:c006bd10e4b7b74b9efde42d84cd061bf2f40a6aa7581d1afe1f4ce59b607e08","observation_id":"7deee3aa-db46-42ab-a531-ff5296bdf573","resolution":{"observed_at":"2026-08-10T14:13:17.640131Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.620850Z","title":null,"venue":null,"work_id":"2dc9f79c-5aa3-4784-9b8b-b4a169ffc2d1","year":1991},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":47,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.405904Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:f4248c73cbc6f9fcd8910e68ceba896e21d14d8d17d8a3f5a37948b624ae7b5b","observation_id":"0070813c-4d58-44b6-8d1c-8a5b099ce856","resolution":{"observed_at":"2026-08-10T14:13:17.625087Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.607712Z","title":null,"venue":null,"work_id":"a08cbc4c-9391-4bd3-90ae-7da0c9a23641","year":1988},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":48,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.409344Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:4e703f3323d33beec59bb952dfcb978ea0e041da5fe652fadd60e07ca541278a","observation_id":"f74ca30b-05a4-4389-abb2-697e49ba5d5e","resolution":{"observed_at":"2026-08-10T14:13:17.611876Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.595232Z","title":"Beeks, T","venue":null,"work_id":"a255aa83-32b9-4fc3-bccd-097c3c411dbb","year":2021},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":49,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.412922Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:60b021c4e1c0624206ab619eeb053fc3ae0ce5ca4f0c3349cec1017d64838b7b","observation_id":"44051ac3-5407-442d-9692-fe0d11bd9971","resolution":{"observed_at":"2026-08-10T14:13:17.599161Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.416302Z","title":"Yamaguchi, Y","venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":50,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.416302Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:578b1d1edef1dc591d7bfe06e28babdeaba6b85111b1ca30d67c9d5a439d1799","observation_id":"06cc329a-e44f-43c7-9aaf-44f5a7186fa4","resolution":{"observed_at":"2026-08-10T14:13:17.416302Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.419832Z","title":null,"venue":null,"work_id":null,"year":null},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":51,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.419832Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:a9b43cff9868d2dff5facba16ac4e5a3f92df2aa84f99371d8ff9f62cb7eb252","observation_id":"91de2e2d-0c9b-4faf-992d-bd5694679983","resolution":{"observed_at":"2026-08-10T14:13:17.419832Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.574291Z","title":null,"venue":null,"work_id":"7b2dc852-8523-471d-8305-11b2b963e066","year":2010},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":52,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.424344Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:453bdf1a87a95dd12234a40f4ea84806b4a859203b61e078edf73e9d7eeb7d87","observation_id":"564623d3-bfcf-456d-ad70-db7af7b0dfe9","resolution":{"observed_at":"2026-08-10T14:13:17.577999Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.560764Z","title":"Huntemann, B","venue":null,"work_id":"c65f2eb7-fdd9-44e4-974d-d5a79ef3ff9f","year":2012},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":53,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.428602Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:5d290681c99acae874d8b1794dc138a1be6def54e42e5a6037d22a1628379875","observation_id":"a4672d03-e9a5-4801-8768-c2b98c8751cd","resolution":{"observed_at":"2026-08-10T14:13:17.565412Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.546937Z","title":"Hobson, W","venue":null,"work_id":"b8280d68-72f0-4989-96f0-94047619b22c","year":2016},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":54,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.433947Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:d35e08238b0a428e156a80cd812e375b3ac137ef6279dd30cb00b211cd253e14","observation_id":"0c0d21d4-11e8-4c52-89ba-6e0531385f9e","resolution":{"observed_at":"2026-08-10T14:13:17.551106Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.533560Z","title":"Zanon-Willette, R","venue":null,"work_id":"3cf699c6-b56e-49cf-ab2c-e62d0dfe799c","year":2018},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":55,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.438634Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:39aa30a09cafb6def81bb42b386275a7de679d9912fa7b5c1661c581f89f5ffa","observation_id":"4e902c66-fd69-4d46-a6d2-047445a05485","resolution":{"observed_at":"2026-08-10T14:13:17.537924Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.520144Z","title":"Sanner, N","venue":null,"work_id":"dcb3ecfb-b7c0-4f07-89ca-5e114681d565","year":2018},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":56,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.443497Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:2ee9d663fe1c8bc6ffcd634ee4037818e621a3c3142043d4859b21ba5446fc90","observation_id":"c14a1504-3f96-4b7f-8a97-203548661e30","resolution":{"observed_at":"2026-08-10T14:13:17.524393Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.505941Z","title":null,"venue":null,"work_id":"bd7b17c7-3a6c-4157-990e-353663ae3a49","year":2018},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":57,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.448048Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:f8f693b69d08f674d80e2386c512508fd1a32b775d74de62792aa1e801a0dd26","observation_id":"800154df-fa96-4d6f-9111-353af8dc40cf","resolution":{"observed_at":"2026-08-10T14:13:17.510917Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T14:13:17.490925Z","title":null,"venue":null,"work_id":"b0f0f63f-373c-4da7-8d7f-58d38e6e6d61","year":2013},"citing_paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field","version":4},"reference_index":58,"source":"pdf_text","source_observed_at":"2026-08-10T14:13:17.452084Z"},"links":{"citing_paper":"/paper/2501.15669"},"observation_digest":"sha256:932d793ca37603ea0c83923447388b13ac36192a2048f6cc4c26ba26b4f9583c","observation_id":"272c3d86-6074-4ab3-8e23-33dc0dcf8087","resolution":{"observed_at":"2026-08-10T14:13:17.496050Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"2501.15669","last_updated":"2025-04-23T10:06:46Z","latest_version":4,"primary_category":"physics.atom-ph","snapshot_observed_at":"2026-08-13T02:56:47.124539Z","submitted_at":"2025-01-26T20:46:19Z","title":"Optical clock based on two-photon spectroscopy of the nuclear transition in ion $^{229}$Th in a monochromatic field"},"reference_resolution":{"displayed":58,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":31,"verified_exact":0,"verified_fuzzy":27},"total_outbound_references":58},"refusal":"A citation records a reference. It does not transfer a finding from one paper to another.","schema":"pith.paper-citation-record.v1","standing_sources":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"thesis":"As of 22 August 2026, this Paper Citation Record lists 58 of 58 outbound references and 0 inbound Pith citation observations for arXiv:2501.15669."}