{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:ODM2OHTRQHBSIW4UAQIQDQ3BKN","short_pith_number":"pith:ODM2OHTR","canonical_record":{"source":{"id":"2104.05737","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T18:04:51Z","cross_cats_sorted":["hep-ex","hep-ph"],"title_canon_sha256":"107f20cddaaaff57ed88bcbc897b6aeca8e6427527e3909e0b5dbc89e3bc2827","abstract_canon_sha256":"4e88e10541c328d2cf20b89ab6c879a74dd469853f6536a2bec6f3ba69173efb"},"schema_version":"1.0"},"canonical_sha256":"70d9a71e7181c3245b94041101c36153790c06c2ba7a03e73e19b3500821892c","source":{"kind":"arxiv","id":"2104.05737","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.05737","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"arxiv_version","alias_value":"2104.05737v2","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.05737","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"pith_short_12","alias_value":"ODM2OHTRQHBS","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"pith_short_16","alias_value":"ODM2OHTRQHBSIW4U","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"pith_short_8","alias_value":"ODM2OHTR","created_at":"2026-07-05T03:04:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:ODM2OHTRQHBSIW4UAQIQDQ3BKN","target":"record","payload":{"canonical_record":{"source":{"id":"2104.05737","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T18:04:51Z","cross_cats_sorted":["hep-ex","hep-ph"],"title_canon_sha256":"107f20cddaaaff57ed88bcbc897b6aeca8e6427527e3909e0b5dbc89e3bc2827","abstract_canon_sha256":"4e88e10541c328d2cf20b89ab6c879a74dd469853f6536a2bec6f3ba69173efb"},"schema_version":"1.0"},"canonical_sha256":"70d9a71e7181c3245b94041101c36153790c06c2ba7a03e73e19b3500821892c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:04:50.283879Z","signature_b64":"xV9EoxyNHEGvtkXUO8Y/Ze1kAlr8EAN43KXIRPQSY57zGZJty688bbsq0Ym1f8nk8eaCdJAksYeawp9V2zn3Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"70d9a71e7181c3245b94041101c36153790c06c2ba7a03e73e19b3500821892c","last_reissued_at":"2026-07-05T03:04:50.283355Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:04:50.283355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.05737","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:04:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rMvgmjSXEUUWlxqcUPCzPNduYLr5akpdFBXKbqibZvljoVg8e3i7XhUOCXk9al/2piJjAu+440egHXq6IJxLDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T22:03:27.429860Z"},"content_sha256":"f0fa481b55d79beb4c7c5323340933433ac0172ef24ba70e16e6901d59b7e442","schema_version":"1.0","event_id":"sha256:f0fa481b55d79beb4c7c5323340933433ac0172ef24ba70e16e6901d59b7e442"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:ODM2OHTRQHBSIW4UAQIQDQ3BKN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Trapped electrons and ions as particle detectors","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","hep-ph"],"primary_cat":"quant-ph","authors_text":"Daniel Carney, David C. Moore, Hartmut H\\\"affner, Jacob M. Taylor","submitted_at":"2021-04-12T18:04:51Z","abstract_excerpt":"Electrons and ions trapped with electromagnetic fields have long served as important high-precision metrological instruments, and more recently have also been proposed as a platform for quantum information processing. Here we point out that these systems can also be used as highly sensitive detectors of passing charged particles, due to the combination of their extreme charge-to-mass ratio and low-noise quantum readout and control. In particular, these systems can be used to detect energy depositions many orders of magnitude below typical ionization scales. As illustrations, we suggest some ap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.05737","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2104.05737/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:04:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W3xs+MPBDttizMDItUE9IOAGTgQjEAmXJoqKREfEGERW0bzcKA9kf2l6/TmfK8lEMW5RcZ69+03q+d4TZJWsBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T22:03:27.430369Z"},"content_sha256":"f0011bbac373cae9ebc820d0040e3c4a112c388b15b9415a35ddf94409b1cb97","schema_version":"1.0","event_id":"sha256:f0011bbac373cae9ebc820d0040e3c4a112c388b15b9415a35ddf94409b1cb97"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ODM2OHTRQHBSIW4UAQIQDQ3BKN/bundle.json","state_url":"https://pith.science/pith/ODM2OHTRQHBSIW4UAQIQDQ3BKN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ODM2OHTRQHBSIW4UAQIQDQ3BKN/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":"2026-08-21T22:03:27Z","links":{"resolver":"https://pith.science/pith/ODM2OHTRQHBSIW4UAQIQDQ3BKN","bundle":"https://pith.science/pith/ODM2OHTRQHBSIW4UAQIQDQ3BKN/bundle.json","state":"https://pith.science/pith/ODM2OHTRQHBSIW4UAQIQDQ3BKN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ODM2OHTRQHBSIW4UAQIQDQ3BKN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:ODM2OHTRQHBSIW4UAQIQDQ3BKN","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":"4e88e10541c328d2cf20b89ab6c879a74dd469853f6536a2bec6f3ba69173efb","cross_cats_sorted":["hep-ex","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T18:04:51Z","title_canon_sha256":"107f20cddaaaff57ed88bcbc897b6aeca8e6427527e3909e0b5dbc89e3bc2827"},"schema_version":"1.0","source":{"id":"2104.05737","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.05737","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"arxiv_version","alias_value":"2104.05737v2","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.05737","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"pith_short_12","alias_value":"ODM2OHTRQHBS","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"pith_short_16","alias_value":"ODM2OHTRQHBSIW4U","created_at":"2026-07-05T03:04:50Z"},{"alias_kind":"pith_short_8","alias_value":"ODM2OHTR","created_at":"2026-07-05T03:04:50Z"}],"graph_snapshots":[{"event_id":"sha256:f0011bbac373cae9ebc820d0040e3c4a112c388b15b9415a35ddf94409b1cb97","target":"graph","created_at":"2026-07-05T03:04:50Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2104.05737/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Electrons and ions trapped with electromagnetic fields have long served as important high-precision metrological instruments, and more recently have also been proposed as a platform for quantum information processing. Here we point out that these systems can also be used as highly sensitive detectors of passing charged particles, due to the combination of their extreme charge-to-mass ratio and low-noise quantum readout and control. In particular, these systems can be used to detect energy depositions many orders of magnitude below typical ionization scales. As illustrations, we suggest some ap","authors_text":"Daniel Carney, David C. Moore, Hartmut H\\\"affner, Jacob M. Taylor","cross_cats":["hep-ex","hep-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T18:04:51Z","title":"Trapped electrons and ions as particle detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.05737","kind":"arxiv","version":2},"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:f0fa481b55d79beb4c7c5323340933433ac0172ef24ba70e16e6901d59b7e442","target":"record","created_at":"2026-07-05T03:04:50Z","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":"4e88e10541c328d2cf20b89ab6c879a74dd469853f6536a2bec6f3ba69173efb","cross_cats_sorted":["hep-ex","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-12T18:04:51Z","title_canon_sha256":"107f20cddaaaff57ed88bcbc897b6aeca8e6427527e3909e0b5dbc89e3bc2827"},"schema_version":"1.0","source":{"id":"2104.05737","kind":"arxiv","version":2}},"canonical_sha256":"70d9a71e7181c3245b94041101c36153790c06c2ba7a03e73e19b3500821892c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"70d9a71e7181c3245b94041101c36153790c06c2ba7a03e73e19b3500821892c","first_computed_at":"2026-07-05T03:04:50.283355Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:04:50.283355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xV9EoxyNHEGvtkXUO8Y/Ze1kAlr8EAN43KXIRPQSY57zGZJty688bbsq0Ym1f8nk8eaCdJAksYeawp9V2zn3Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:04:50.283879Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.05737","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0fa481b55d79beb4c7c5323340933433ac0172ef24ba70e16e6901d59b7e442","sha256:f0011bbac373cae9ebc820d0040e3c4a112c388b15b9415a35ddf94409b1cb97"],"state_sha256":"0760dc486636d49628f7b525c2a95c81031d2c40eb6b7dd6268c81443d128687"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CvWT66IcuZbjv0ZSzhuVPr7f40rR2ts3hesWdd6cGREmWbqkirYU2Rj9WVnqh9Q4LJpw3FcAIRd9LT6kVRvrDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T22:03:27.434991Z","bundle_sha256":"0f648f009c7234a9d30d3e4ee4f07f2c033a699e5e657c496d23f8c38f8ca4f1"}}