{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:PTN4NSSFFEECTIJ6W4NQYOFC6A","short_pith_number":"pith:PTN4NSSF","schema_version":"1.0","canonical_sha256":"7cdbc6ca45290829a13eb71b0c38a2f002ed04bb6caedc3ddfc46f9d9ef4fb01","source":{"kind":"arxiv","id":"quant-ph/0508041","version":1},"attestation_state":"computed","paper":{"title":"Reversibility and Irreversibility within the Quantum Formalism","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Christian Maes, Tim Jacobs","submitted_at":"2005-08-04T11:41:23Z","abstract_excerpt":"The discussion on time-reversal in quantum mechanics exists at least since Wigner's ``Uber die Operation der Zeitumkehr in der Quantenmechanik'' paper in 1932. If and how the dynamics of the quantum world is time-reversible has been the subject of many controversies. Some have seen quantum mechanics as fundamentally time-irreversible, see for example von Neumann, and some have seen in that the ultimate cause of time's arrow and second law behavior. In his best-selling book ``The Emperor's New Mind'', Roger Penrose argues similarly and concludes that ``our sought-for quantum gravity must be a t"},"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/0508041","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2005-08-04T11:41:23Z","cross_cats_sorted":[],"title_canon_sha256":"9c8052c6119bed5862044e0a9d51dd30173c7ad669113cc3dbbfa52d1fec5d29","abstract_canon_sha256":"e9b57a7a562bfb0b204011fc5f85b7f7d945aae4ca664abf0bd2d482423bfcbc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:47:01.256573Z","signature_b64":"vfYBrz49JXU0vV6NoI4IrVJDSJb5tLABfVk6txQfrkmCbFUlt/z7pj4C4TyTKz1n76xvwaj43Q7RlxNFrSSpAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7cdbc6ca45290829a13eb71b0c38a2f002ed04bb6caedc3ddfc46f9d9ef4fb01","last_reissued_at":"2026-07-04T14:47:01.256208Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:47:01.256208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Reversibility and Irreversibility within the Quantum Formalism","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Christian Maes, Tim Jacobs","submitted_at":"2005-08-04T11:41:23Z","abstract_excerpt":"The discussion on time-reversal in quantum mechanics exists at least since Wigner's ``Uber die Operation der Zeitumkehr in der Quantenmechanik'' paper in 1932. If and how the dynamics of the quantum world is time-reversible has been the subject of many controversies. Some have seen quantum mechanics as fundamentally time-irreversible, see for example von Neumann, and some have seen in that the ultimate cause of time's arrow and second law behavior. In his best-selling book ``The Emperor's New Mind'', Roger Penrose argues similarly and concludes that ``our sought-for quantum gravity must be a t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0508041","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/quant-ph/0508041/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":"quant-ph/0508041","created_at":"2026-07-04T14:47:01.256263+00:00"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0508041v1","created_at":"2026-07-04T14:47:01.256263+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0508041","created_at":"2026-07-04T14:47:01.256263+00:00"},{"alias_kind":"pith_short_12","alias_value":"PTN4NSSFFEEC","created_at":"2026-07-04T14:47:01.256263+00:00"},{"alias_kind":"pith_short_16","alias_value":"PTN4NSSFFEECTIJ6","created_at":"2026-07-04T14:47:01.256263+00:00"},{"alias_kind":"pith_short_8","alias_value":"PTN4NSSF","created_at":"2026-07-04T14:47:01.256263+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/PTN4NSSFFEECTIJ6W4NQYOFC6A","json":"https://pith.science/pith/PTN4NSSFFEECTIJ6W4NQYOFC6A.json","graph_json":"https://pith.science/api/pith-number/PTN4NSSFFEECTIJ6W4NQYOFC6A/graph.json","events_json":"https://pith.science/api/pith-number/PTN4NSSFFEECTIJ6W4NQYOFC6A/events.json","paper":"https://pith.science/paper/PTN4NSSF"},"agent_actions":{"view_html":"https://pith.science/pith/PTN4NSSFFEECTIJ6W4NQYOFC6A","download_json":"https://pith.science/pith/PTN4NSSFFEECTIJ6W4NQYOFC6A.json","view_paper":"https://pith.science/paper/PTN4NSSF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=quant-ph/0508041&json=true","fetch_graph":"https://pith.science/api/pith-number/PTN4NSSFFEECTIJ6W4NQYOFC6A/graph.json","fetch_events":"https://pith.science/api/pith-number/PTN4NSSFFEECTIJ6W4NQYOFC6A/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PTN4NSSFFEECTIJ6W4NQYOFC6A/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PTN4NSSFFEECTIJ6W4NQYOFC6A/action/storage_attestation","attest_author":"https://pith.science/pith/PTN4NSSFFEECTIJ6W4NQYOFC6A/action/author_attestation","sign_citation":"https://pith.science/pith/PTN4NSSFFEECTIJ6W4NQYOFC6A/action/citation_signature","submit_replication":"https://pith.science/pith/PTN4NSSFFEECTIJ6W4NQYOFC6A/action/replication_record"}},"created_at":"2026-07-04T14:47:01.256263+00:00","updated_at":"2026-07-04T14:47:01.256263+00:00"}