{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:XEXAIMZFERYVU25AL6IW24A4RL","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":"4fd3358b258a3264e2cbdaa7493efba1bbe99d9327da126fe5b87cd733c649f0","cross_cats_sorted":["cond-mat.stat-mech","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-04-20T12:26:32Z","title_canon_sha256":"ce6bc8dfc82ebde9403ed13cb8414d35aea171d05f158a9af86769bf5c95c391"},"schema_version":"1.0","source":{"id":"2304.10258","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.10258","created_at":"2026-07-05T09:34:54Z"},{"alias_kind":"arxiv_version","alias_value":"2304.10258v4","created_at":"2026-07-05T09:34:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.10258","created_at":"2026-07-05T09:34:54Z"},{"alias_kind":"pith_short_12","alias_value":"XEXAIMZFERYV","created_at":"2026-07-05T09:34:54Z"},{"alias_kind":"pith_short_16","alias_value":"XEXAIMZFERYVU25A","created_at":"2026-07-05T09:34:54Z"},{"alias_kind":"pith_short_8","alias_value":"XEXAIMZF","created_at":"2026-07-05T09:34:54Z"}],"graph_snapshots":[{"event_id":"sha256:91f5488b8704a5003b4af4577ccbd2dfd540190209f15afb13c777814647cbbd","target":"graph","created_at":"2026-07-05T09:34:54Z","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/2304.10258/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Within the histories formalism the decoherence functional is a formal tool to investigate the emergence of classicality in isolated quantum systems, yet an explicit evaluation of it from first principles has not been reported. We provide such an evaluation for up to five-time histories based on exact numerical diagonalization of the Schr\\\"odinger equation. We find a robust emergence of decoherence for slow and coarse observables of a generic random matrix model and extract a finite size scaling law by varying the Hilbert space dimension over four orders of magnitude. Specifically, we conjectur","authors_text":"Joseph Schindler, Philipp Strasberg, Teresa E. Reinhard","cross_cats":["cond-mat.stat-mech","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-04-20T12:26:32Z","title":"First Principles Numerical Demonstration of Emergent Decoherent Histories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.10258","kind":"arxiv","version":4},"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":"sha256:57e18c937984d3aadd756a7dbaeac33decb5ee46b094e75b6dcde69776451ef7","target":"record","created_at":"2026-07-05T09:34:54Z","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":"4fd3358b258a3264e2cbdaa7493efba1bbe99d9327da126fe5b87cd733c649f0","cross_cats_sorted":["cond-mat.stat-mech","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-04-20T12:26:32Z","title_canon_sha256":"ce6bc8dfc82ebde9403ed13cb8414d35aea171d05f158a9af86769bf5c95c391"},"schema_version":"1.0","source":{"id":"2304.10258","kind":"arxiv","version":4}},"canonical_sha256":"b92e04332524715a6ba05f916d701c8aca9750f981187e345e1fd4ffc180c2fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b92e04332524715a6ba05f916d701c8aca9750f981187e345e1fd4ffc180c2fe","first_computed_at":"2026-07-05T09:34:54.630583Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:34:54.630583Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XX6TXrrH3OuztGFOQbAw9pzas3RHgA4l3P55lVPjgywj86dCo+NO2X8JDTN1ZCzzD6VZMgDvEV0DhElOKVSEAw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:34:54.631071Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.10258","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57e18c937984d3aadd756a7dbaeac33decb5ee46b094e75b6dcde69776451ef7","sha256:91f5488b8704a5003b4af4577ccbd2dfd540190209f15afb13c777814647cbbd"],"state_sha256":"d2b75a66fdcb181b073ac1732087df4c346525acad156add04a10f60b7af6f90"}