{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:Q57G4FJB6KOOWCEOX4VT3VP64B","short_pith_number":"pith:Q57G4FJB","canonical_record":{"source":{"id":"1110.2199","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-10T21:14:43Z","cross_cats_sorted":[],"title_canon_sha256":"2738158bd4da754bbd764bd65f17ecabccfdf891809d6a9e1eabd8318b1902a0","abstract_canon_sha256":"2d9a1450c7dd64bb26783c85721cd4ce50c9abd84e852496ee3c671ffbee0137"},"schema_version":"1.0"},"canonical_sha256":"877e6e1521f29ceb088ebf2b3dd5fee072db68c9c99611bd73746bdd62ff9cb3","source":{"kind":"arxiv","id":"1110.2199","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2199","created_at":"2026-05-18T04:11:17Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2199v1","created_at":"2026-05-18T04:11:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2199","created_at":"2026-05-18T04:11:17Z"},{"alias_kind":"pith_short_12","alias_value":"Q57G4FJB6KOO","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q57G4FJB6KOOWCEO","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q57G4FJB","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:Q57G4FJB6KOOWCEOX4VT3VP64B","target":"record","payload":{"canonical_record":{"source":{"id":"1110.2199","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-10T21:14:43Z","cross_cats_sorted":[],"title_canon_sha256":"2738158bd4da754bbd764bd65f17ecabccfdf891809d6a9e1eabd8318b1902a0","abstract_canon_sha256":"2d9a1450c7dd64bb26783c85721cd4ce50c9abd84e852496ee3c671ffbee0137"},"schema_version":"1.0"},"canonical_sha256":"877e6e1521f29ceb088ebf2b3dd5fee072db68c9c99611bd73746bdd62ff9cb3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:11:17.423153Z","signature_b64":"s2OZ7xfD/0WAEseafHZ1i0iutVk0YGDNG97qNrao1K5ZDTEoCk2SyDVTFZLPnuzUe+TDmRYx5suuENdOqb3HBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"877e6e1521f29ceb088ebf2b3dd5fee072db68c9c99611bd73746bdd62ff9cb3","last_reissued_at":"2026-05-18T04:11:17.422398Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:11:17.422398Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.2199","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:11:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5xMPaNkUeFcnsSpXrOnchcchz6jGXxUj0VU/wk2Y4GMIyyNBHGgjf19larGTfV6Of30oqJQ3bMf/b2GhM+BsDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T19:03:59.576968Z"},"content_sha256":"67f22fcbd10e9d03d8deb12fb3f0c821c17bf8c2043d401d45516f516349bd9b","schema_version":"1.0","event_id":"sha256:67f22fcbd10e9d03d8deb12fb3f0c821c17bf8c2043d401d45516f516349bd9b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:Q57G4FJB6KOOWCEOX4VT3VP64B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"False loss of coherence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"William G. Unruh","submitted_at":"2011-10-10T21:14:43Z","abstract_excerpt":"The loss of coherence of a quantum system coupled to a heat bath as expressed by the reduced density matrix is shown to lead to the miss-characterization of some systems as being incoherent when they are not. The spin boson problem and the harmonic oscillator with massive scalar field heat baths are given as examples of reduced incoherent density matrices which nevertheless still represent perfectly coherent systems."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2199","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:11:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UCbjbUmUmhs2dNPoXgrdYyPaxi7OPE/4QQjJD4YcF57RbYFdu0Zg/6V5/Q851tUTJZVCVR62bDC4NhK75RJ5CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T19:03:59.577419Z"},"content_sha256":"b9622f1292c40f8a789ac9907d152559387f5367b99cf3a69a415dd67dc3e15a","schema_version":"1.0","event_id":"sha256:b9622f1292c40f8a789ac9907d152559387f5367b99cf3a69a415dd67dc3e15a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q57G4FJB6KOOWCEOX4VT3VP64B/bundle.json","state_url":"https://pith.science/pith/Q57G4FJB6KOOWCEOX4VT3VP64B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q57G4FJB6KOOWCEOX4VT3VP64B/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-05T19:03:59Z","links":{"resolver":"https://pith.science/pith/Q57G4FJB6KOOWCEOX4VT3VP64B","bundle":"https://pith.science/pith/Q57G4FJB6KOOWCEOX4VT3VP64B/bundle.json","state":"https://pith.science/pith/Q57G4FJB6KOOWCEOX4VT3VP64B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q57G4FJB6KOOWCEOX4VT3VP64B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:Q57G4FJB6KOOWCEOX4VT3VP64B","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":"2d9a1450c7dd64bb26783c85721cd4ce50c9abd84e852496ee3c671ffbee0137","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-10T21:14:43Z","title_canon_sha256":"2738158bd4da754bbd764bd65f17ecabccfdf891809d6a9e1eabd8318b1902a0"},"schema_version":"1.0","source":{"id":"1110.2199","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.2199","created_at":"2026-05-18T04:11:17Z"},{"alias_kind":"arxiv_version","alias_value":"1110.2199v1","created_at":"2026-05-18T04:11:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2199","created_at":"2026-05-18T04:11:17Z"},{"alias_kind":"pith_short_12","alias_value":"Q57G4FJB6KOO","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q57G4FJB6KOOWCEO","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q57G4FJB","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:b9622f1292c40f8a789ac9907d152559387f5367b99cf3a69a415dd67dc3e15a","target":"graph","created_at":"2026-05-18T04:11:17Z","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"},"paper":{"abstract_excerpt":"The loss of coherence of a quantum system coupled to a heat bath as expressed by the reduced density matrix is shown to lead to the miss-characterization of some systems as being incoherent when they are not. The spin boson problem and the harmonic oscillator with massive scalar field heat baths are given as examples of reduced incoherent density matrices which nevertheless still represent perfectly coherent systems.","authors_text":"William G. Unruh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-10T21:14:43Z","title":"False loss of coherence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2199","kind":"arxiv","version":1},"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":"sha256:67f22fcbd10e9d03d8deb12fb3f0c821c17bf8c2043d401d45516f516349bd9b","target":"record","created_at":"2026-05-18T04:11:17Z","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":"2d9a1450c7dd64bb26783c85721cd4ce50c9abd84e852496ee3c671ffbee0137","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-10T21:14:43Z","title_canon_sha256":"2738158bd4da754bbd764bd65f17ecabccfdf891809d6a9e1eabd8318b1902a0"},"schema_version":"1.0","source":{"id":"1110.2199","kind":"arxiv","version":1}},"canonical_sha256":"877e6e1521f29ceb088ebf2b3dd5fee072db68c9c99611bd73746bdd62ff9cb3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"877e6e1521f29ceb088ebf2b3dd5fee072db68c9c99611bd73746bdd62ff9cb3","first_computed_at":"2026-05-18T04:11:17.422398Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:11:17.422398Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s2OZ7xfD/0WAEseafHZ1i0iutVk0YGDNG97qNrao1K5ZDTEoCk2SyDVTFZLPnuzUe+TDmRYx5suuENdOqb3HBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:11:17.423153Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.2199","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67f22fcbd10e9d03d8deb12fb3f0c821c17bf8c2043d401d45516f516349bd9b","sha256:b9622f1292c40f8a789ac9907d152559387f5367b99cf3a69a415dd67dc3e15a"],"state_sha256":"fc315dc2fabcdc708153f5e766180d1baf8286ab404579af34b9efc7afc63d83"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A4OARO9cdJdQMu055RRZT1ChpjKpevPhmhqTYtp4nZDESaQ7QzQ5KfMj6/qtghKdNNloojRvQdj70iVTj61FCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T19:03:59.579697Z","bundle_sha256":"f9d135d48e321e92693b1e53c143faf37225eea232d5f6c5c51740f14feba7a2"}}