{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2001:JHCF5DBVIJNB2USYJ5VF34RQ3A","short_pith_number":"pith:JHCF5DBV","schema_version":"1.0","canonical_sha256":"49c45e8c35425a1d52584f6a5df230d8180279d29d77a0aa992955f24acd5cfb","source":{"kind":"arxiv","id":"quant-ph/0107139","version":1},"attestation_state":"computed","paper":{"title":"Master Equation for Retrodiction of Quantum Communication Signals","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"David T. Pegg, John Jeffers, Ottavia Jedrkiewicz, Stephen M. Barnett","submitted_at":"2001-07-27T14:19:35Z","abstract_excerpt":"We derive the master equation that governs the evolution of the measured state backwards in time in an open system. This allows us to determine probabilities for a given set of preparation events from the results of subsequent measurements, which has particular relevance to quantum communication."},"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":"quant-ph/0107139","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2001-07-27T14:19:35Z","cross_cats_sorted":[],"title_canon_sha256":"de96fcca6e6af7599788efcbb7bb4eb882a5a54f44cb249eea609377b145958f","abstract_canon_sha256":"217155e02fa95b6466853982449c497c57397bf5a48eaa498a76e62047ef4321"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:05:04.882135Z","signature_b64":"VrTxnDwyfZjhT9NfiPcbZUuu30pNX9lQAWtovZpsRpwr1cUq+hNsjwE5WAXjY8gn3QKElKkUmzVH3ltfk3Z7AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49c45e8c35425a1d52584f6a5df230d8180279d29d77a0aa992955f24acd5cfb","last_reissued_at":"2026-05-18T01:05:04.881298Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:05:04.881298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Master Equation for Retrodiction of Quantum Communication Signals","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"David T. Pegg, John Jeffers, Ottavia Jedrkiewicz, Stephen M. Barnett","submitted_at":"2001-07-27T14:19:35Z","abstract_excerpt":"We derive the master equation that governs the evolution of the measured state backwards in time in an open system. This allows us to determine probabilities for a given set of preparation events from the results of subsequent measurements, which has particular relevance to quantum communication."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0107139","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0107139","created_at":"2026-05-18T01:05:04.881438+00:00"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0107139v1","created_at":"2026-05-18T01:05:04.881438+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0107139","created_at":"2026-05-18T01:05:04.881438+00:00"},{"alias_kind":"pith_short_12","alias_value":"JHCF5DBVIJNB","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_16","alias_value":"JHCF5DBVIJNB2USY","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_8","alias_value":"JHCF5DBV","created_at":"2026-05-18T12:25:50.254431+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/JHCF5DBVIJNB2USYJ5VF34RQ3A","json":"https://pith.science/pith/JHCF5DBVIJNB2USYJ5VF34RQ3A.json","graph_json":"https://pith.science/api/pith-number/JHCF5DBVIJNB2USYJ5VF34RQ3A/graph.json","events_json":"https://pith.science/api/pith-number/JHCF5DBVIJNB2USYJ5VF34RQ3A/events.json","paper":"https://pith.science/paper/JHCF5DBV"},"agent_actions":{"view_html":"https://pith.science/pith/JHCF5DBVIJNB2USYJ5VF34RQ3A","download_json":"https://pith.science/pith/JHCF5DBVIJNB2USYJ5VF34RQ3A.json","view_paper":"https://pith.science/paper/JHCF5DBV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=quant-ph/0107139&json=true","fetch_graph":"https://pith.science/api/pith-number/JHCF5DBVIJNB2USYJ5VF34RQ3A/graph.json","fetch_events":"https://pith.science/api/pith-number/JHCF5DBVIJNB2USYJ5VF34RQ3A/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JHCF5DBVIJNB2USYJ5VF34RQ3A/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JHCF5DBVIJNB2USYJ5VF34RQ3A/action/storage_attestation","attest_author":"https://pith.science/pith/JHCF5DBVIJNB2USYJ5VF34RQ3A/action/author_attestation","sign_citation":"https://pith.science/pith/JHCF5DBVIJNB2USYJ5VF34RQ3A/action/citation_signature","submit_replication":"https://pith.science/pith/JHCF5DBVIJNB2USYJ5VF34RQ3A/action/replication_record"}},"created_at":"2026-05-18T01:05:04.881438+00:00","updated_at":"2026-05-18T01:05:04.881438+00:00"}