{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:3ETPDFRE2323Z7CQWPQUGDTTFU","short_pith_number":"pith:3ETPDFRE","canonical_record":{"source":{"id":"1110.2590","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-10-12T08:07:26Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"c11b6cda4ea0fce60967c510f1b64c858b699e744f673d174cb89720ed2cf64e","abstract_canon_sha256":"0ae886f405063366c6904fae64cd9d35c67322989745c7b3b12ca22436f10a2f"},"schema_version":"1.0"},"canonical_sha256":"d926f19624d6f5bcfc50b3e1430e732d017478f5b4e18bfe5942074e4f3acd0f","source":{"kind":"arxiv","id":"1110.2590","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2590","created_at":"2026-05-18T00:02:50Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2590v1","created_at":"2026-05-18T00:02:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2590","created_at":"2026-05-18T00:02:50Z"},{"alias_kind":"pith_short_12","alias_value":"3ETPDFRE2323","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"3ETPDFRE2323Z7CQ","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"3ETPDFRE","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:3ETPDFRE2323Z7CQWPQUGDTTFU","target":"record","payload":{"canonical_record":{"source":{"id":"1110.2590","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-10-12T08:07:26Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"c11b6cda4ea0fce60967c510f1b64c858b699e744f673d174cb89720ed2cf64e","abstract_canon_sha256":"0ae886f405063366c6904fae64cd9d35c67322989745c7b3b12ca22436f10a2f"},"schema_version":"1.0"},"canonical_sha256":"d926f19624d6f5bcfc50b3e1430e732d017478f5b4e18bfe5942074e4f3acd0f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:50.306944Z","signature_b64":"PZOtDzZHabUG36oqlC9zWOV27seeW4ySW9eb/BWpZGeVXOf1rfy8Y0S0iyXRQ4nENYm1NZN5nsv4IyfPxfEsAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d926f19624d6f5bcfc50b3e1430e732d017478f5b4e18bfe5942074e4f3acd0f","last_reissued_at":"2026-05-18T00:02:50.306376Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:50.306376Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.2590","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:02:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UASkBnVvTt/FCvCxgXQ61mTxNbDXxjjKPDWRDxxar0MU6Ilmx3dRkw4UQyJWm3FIjYNDy5Qi6nEzZOAKTg2BAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:05:13.222278Z"},"content_sha256":"f61a439ba1cf8a2555f2239573e1eb70d792ef015377f1d169cb17411fae9ee3","schema_version":"1.0","event_id":"sha256:f61a439ba1cf8a2555f2239573e1eb70d792ef015377f1d169cb17411fae9ee3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:3ETPDFRE2323Z7CQWPQUGDTTFU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Distributed cavity phase frequency shifts of the caesium fountain PTB-CSF2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"K. Gibble, N. Nemitz, R. Li, S. Weyers, V. Gerginov","submitted_at":"2011-10-12T08:07:26Z","abstract_excerpt":"We evaluate the frequency error from distributed cavity phase in the caesium fountain clock PTB-CSF2 at the Physikalisch-Technische Bundesanstalt with a combination of frequency measurements and ab initio calculations. The associated uncertainty is 1.3E-16, with a frequency bias of 0.4E-16. The agreement between the measurements and calculations explains the previously observed frequency shifts at elevated microwave amplitude. We also evaluate the frequency bias and uncertainty due to the microwave lensing of the atomic wavepackets. We report a total PTB-CSF2 systematic uncertainty of 4.1E-16."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2590","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:02:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"km8xbiwGNLuX+3RrncKIhcHpi6e5os0K+ts/eBNPH80AiipwLR4/bdwe5rSp63LwYt18gVUH7MYibPX/4lVICA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:05:13.222979Z"},"content_sha256":"cc274357648339ced74eac95822a2987b126e9e4fb9a30dc70fcefe2a3f1abd8","schema_version":"1.0","event_id":"sha256:cc274357648339ced74eac95822a2987b126e9e4fb9a30dc70fcefe2a3f1abd8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3ETPDFRE2323Z7CQWPQUGDTTFU/bundle.json","state_url":"https://pith.science/pith/3ETPDFRE2323Z7CQWPQUGDTTFU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3ETPDFRE2323Z7CQWPQUGDTTFU/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-27T08:05:13Z","links":{"resolver":"https://pith.science/pith/3ETPDFRE2323Z7CQWPQUGDTTFU","bundle":"https://pith.science/pith/3ETPDFRE2323Z7CQWPQUGDTTFU/bundle.json","state":"https://pith.science/pith/3ETPDFRE2323Z7CQWPQUGDTTFU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3ETPDFRE2323Z7CQWPQUGDTTFU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:3ETPDFRE2323Z7CQWPQUGDTTFU","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"0ae886f405063366c6904fae64cd9d35c67322989745c7b3b12ca22436f10a2f","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-10-12T08:07:26Z","title_canon_sha256":"c11b6cda4ea0fce60967c510f1b64c858b699e744f673d174cb89720ed2cf64e"},"schema_version":"1.0","source":{"id":"1110.2590","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2590","created_at":"2026-05-18T00:02:50Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2590v1","created_at":"2026-05-18T00:02:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2590","created_at":"2026-05-18T00:02:50Z"},{"alias_kind":"pith_short_12","alias_value":"3ETPDFRE2323","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"3ETPDFRE2323Z7CQ","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"3ETPDFRE","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:cc274357648339ced74eac95822a2987b126e9e4fb9a30dc70fcefe2a3f1abd8","target":"graph","created_at":"2026-05-18T00:02:50Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We evaluate the frequency error from distributed cavity phase in the caesium fountain clock PTB-CSF2 at the Physikalisch-Technische Bundesanstalt with a combination of frequency measurements and ab initio calculations. The associated uncertainty is 1.3E-16, with a frequency bias of 0.4E-16. The agreement between the measurements and calculations explains the previously observed frequency shifts at elevated microwave amplitude. We also evaluate the frequency bias and uncertainty due to the microwave lensing of the atomic wavepackets. We report a total PTB-CSF2 systematic uncertainty of 4.1E-16.","authors_text":"K. Gibble, N. Nemitz, R. Li, S. Weyers, V. Gerginov","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-10-12T08:07:26Z","title":"Distributed cavity phase frequency shifts of the caesium fountain PTB-CSF2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2590","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:f61a439ba1cf8a2555f2239573e1eb70d792ef015377f1d169cb17411fae9ee3","target":"record","created_at":"2026-05-18T00:02:50Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"0ae886f405063366c6904fae64cd9d35c67322989745c7b3b12ca22436f10a2f","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-10-12T08:07:26Z","title_canon_sha256":"c11b6cda4ea0fce60967c510f1b64c858b699e744f673d174cb89720ed2cf64e"},"schema_version":"1.0","source":{"id":"1110.2590","kind":"arxiv","version":1}},"canonical_sha256":"d926f19624d6f5bcfc50b3e1430e732d017478f5b4e18bfe5942074e4f3acd0f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d926f19624d6f5bcfc50b3e1430e732d017478f5b4e18bfe5942074e4f3acd0f","first_computed_at":"2026-05-18T00:02:50.306376Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:50.306376Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PZOtDzZHabUG36oqlC9zWOV27seeW4ySW9eb/BWpZGeVXOf1rfy8Y0S0iyXRQ4nENYm1NZN5nsv4IyfPxfEsAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:50.306944Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.2590","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f61a439ba1cf8a2555f2239573e1eb70d792ef015377f1d169cb17411fae9ee3","sha256:cc274357648339ced74eac95822a2987b126e9e4fb9a30dc70fcefe2a3f1abd8"],"state_sha256":"81f2d0f1ecfd64a42d35e0b066b41b5367e2da08c799d7e5d90e0eb4286ba6c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Jg9+CzDW5Nqubwh1N8NpeViwUxyofJK2JJkhl3SBrIj134BWc1UhGlwaoadeUKGYuJS1oCkzTvTBL6+JzEuAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T08:05:13.226762Z","bundle_sha256":"5b2987e9b889aea46f7af00c3efd43ee1edbaf8333c554cf564f0a21ed402b3a"}}