{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:QQI32SN6RZE7KRYOMMYNVV6DXB","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":"45dd6343829e3d83ac37396952333c650d0ef26a3f44d40f2bbe236799bb5366","cross_cats_sorted":["physics.hist-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-14T18:08:41Z","title_canon_sha256":"1fe46f5e4af239119ca75241f3874fb759fa32e8b1fcbf255534befa1921313a"},"schema_version":"1.0","source":{"id":"2106.07684","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.07684","created_at":"2026-07-05T03:16:32Z"},{"alias_kind":"arxiv_version","alias_value":"2106.07684v2","created_at":"2026-07-05T03:16:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.07684","created_at":"2026-07-05T03:16:32Z"},{"alias_kind":"pith_short_12","alias_value":"QQI32SN6RZE7","created_at":"2026-07-05T03:16:32Z"},{"alias_kind":"pith_short_16","alias_value":"QQI32SN6RZE7KRYO","created_at":"2026-07-05T03:16:32Z"},{"alias_kind":"pith_short_8","alias_value":"QQI32SN6","created_at":"2026-07-05T03:16:32Z"}],"graph_snapshots":[{"event_id":"sha256:c8afeebf8ba1c1c92295f00c09d429c88901502b8d24d343c3a8251b5a032e07","target":"graph","created_at":"2026-07-05T03:16:32Z","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/2106.07684/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Time plays a fundamental role in our ability to make sense of the physical laws in the world around us. The nature of time has puzzled people -- from the ancient Greeks to the present day -- resulting in a long running debate between philosophers and physicists alike to whether time needs change to exist (the so-called relatival theory), or whether time flows regardless of change (the so-called substantival theory). One way to decide between the two is to attempt to measure the flow of time with a stationary clock, since if time were substantival, the flow of time would manifest itself in the ","authors_text":"Mischa P. Woods, Sergii Strelchuk","cross_cats":["physics.hist-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-14T18:08:41Z","title":"Measuring time with stationary quantum clocks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.07684","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":"sha256:128dc886c74707c86a2de71117946016457fe884ba79411803b8b698b01c2bf4","target":"record","created_at":"2026-07-05T03:16:32Z","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":"45dd6343829e3d83ac37396952333c650d0ef26a3f44d40f2bbe236799bb5366","cross_cats_sorted":["physics.hist-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-14T18:08:41Z","title_canon_sha256":"1fe46f5e4af239119ca75241f3874fb759fa32e8b1fcbf255534befa1921313a"},"schema_version":"1.0","source":{"id":"2106.07684","kind":"arxiv","version":2}},"canonical_sha256":"8411bd49be8e49f5470e6330dad7c3b848600da17de4326dbb5eb6002daac217","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8411bd49be8e49f5470e6330dad7c3b848600da17de4326dbb5eb6002daac217","first_computed_at":"2026-07-05T03:16:32.831125Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:16:32.831125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H7F61j1njq/kj/fHR4WmwoMMem8epbm4T1UfSHG7JsxkBG+J0I6IPlSt8n/JyO7qmbiRS0iXtzh/mey4BK1TCA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:16:32.831563Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.07684","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:128dc886c74707c86a2de71117946016457fe884ba79411803b8b698b01c2bf4","sha256:c8afeebf8ba1c1c92295f00c09d429c88901502b8d24d343c3a8251b5a032e07"],"state_sha256":"d9f911131c43959b03c1b9852f9f4a7894621e6bd05d46c77514bf68d98bbe08"}