{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:TCRN7EIKRY6C6UDKFYBGDX67AR","short_pith_number":"pith:TCRN7EIK","schema_version":"1.0","canonical_sha256":"98a2df910a8e3c2f506a2e0261dfdf045389dc2bcbf428307f4e0b1cfafcc706","source":{"kind":"arxiv","id":"2305.15649","version":2},"attestation_state":"computed","paper":{"title":"The spatiotemporal doubled density operator: a unified framework for analyzing spatial and temporal quantum processes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"quant-ph","authors_text":"Dagomir Kaszlikowski, Zhian Jia","submitted_at":"2023-05-25T01:55:47Z","abstract_excerpt":"The measurement statistics for spatial and temporal quantum processes are produced through distinct mechanisms. Measurements that are space-like separated exhibit non-signaling behavior. However, time-like separated measurements can only result in one-way non-signaling, as the past is independent of the future, but the opposite is not true. This work presents the doubled density operator as a comprehensive framework for studying quantum processes in space-time. It effectively captures all the physical information of the process, with the measurement and Born rule showing uniformity for both sp"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2305.15649","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-05-25T01:55:47Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"43ddd78dc2e30379b31a9779219a83a9f061a6606db05dfca2d087254d4dc4fd","abstract_canon_sha256":"5306389a9e96274f01434857b1533cbd188ae2725fa915b8aeee3e9131542ec9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:00:34.828477Z","signature_b64":"pdWmRbaHCTtmIWrlQyKq7KvOHbF5ch4U1wMIKoagIm2unNUgfZNKmk5QuFC0T3Wjlypcc6B/YiT/mA+nczNwCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98a2df910a8e3c2f506a2e0261dfdf045389dc2bcbf428307f4e0b1cfafcc706","last_reissued_at":"2026-07-05T09:00:34.827977Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:00:34.827977Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The spatiotemporal doubled density operator: a unified framework for analyzing spatial and temporal quantum processes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"quant-ph","authors_text":"Dagomir Kaszlikowski, Zhian Jia","submitted_at":"2023-05-25T01:55:47Z","abstract_excerpt":"The measurement statistics for spatial and temporal quantum processes are produced through distinct mechanisms. Measurements that are space-like separated exhibit non-signaling behavior. However, time-like separated measurements can only result in one-way non-signaling, as the past is independent of the future, but the opposite is not true. This work presents the doubled density operator as a comprehensive framework for studying quantum processes in space-time. It effectively captures all the physical information of the process, with the measurement and Born rule showing uniformity for both sp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.15649","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/2305.15649/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2305.15649","created_at":"2026-07-05T09:00:34.828034+00:00"},{"alias_kind":"arxiv_version","alias_value":"2305.15649v2","created_at":"2026-07-05T09:00:34.828034+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.15649","created_at":"2026-07-05T09:00:34.828034+00:00"},{"alias_kind":"pith_short_12","alias_value":"TCRN7EIKRY6C","created_at":"2026-07-05T09:00:34.828034+00:00"},{"alias_kind":"pith_short_16","alias_value":"TCRN7EIKRY6C6UDK","created_at":"2026-07-05T09:00:34.828034+00:00"},{"alias_kind":"pith_short_8","alias_value":"TCRN7EIK","created_at":"2026-07-05T09:00:34.828034+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.02655","citing_title":"Temporal State Tomography via Quantum Snapshotting the Temporal Quasiprobabilities","ref_index":19,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/TCRN7EIKRY6C6UDKFYBGDX67AR","json":"https://pith.science/pith/TCRN7EIKRY6C6UDKFYBGDX67AR.json","graph_json":"https://pith.science/api/pith-number/TCRN7EIKRY6C6UDKFYBGDX67AR/graph.json","events_json":"https://pith.science/api/pith-number/TCRN7EIKRY6C6UDKFYBGDX67AR/events.json","paper":"https://pith.science/paper/TCRN7EIK"},"agent_actions":{"view_html":"https://pith.science/pith/TCRN7EIKRY6C6UDKFYBGDX67AR","download_json":"https://pith.science/pith/TCRN7EIKRY6C6UDKFYBGDX67AR.json","view_paper":"https://pith.science/paper/TCRN7EIK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2305.15649&json=true","fetch_graph":"https://pith.science/api/pith-number/TCRN7EIKRY6C6UDKFYBGDX67AR/graph.json","fetch_events":"https://pith.science/api/pith-number/TCRN7EIKRY6C6UDKFYBGDX67AR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TCRN7EIKRY6C6UDKFYBGDX67AR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TCRN7EIKRY6C6UDKFYBGDX67AR/action/storage_attestation","attest_author":"https://pith.science/pith/TCRN7EIKRY6C6UDKFYBGDX67AR/action/author_attestation","sign_citation":"https://pith.science/pith/TCRN7EIKRY6C6UDKFYBGDX67AR/action/citation_signature","submit_replication":"https://pith.science/pith/TCRN7EIKRY6C6UDKFYBGDX67AR/action/replication_record"}},"created_at":"2026-07-05T09:00:34.828034+00:00","updated_at":"2026-07-05T09:00:34.828034+00:00"}