{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:HHRC7STFWF4HN2QELMYZCRRX5C","short_pith_number":"pith:HHRC7STF","canonical_record":{"source":{"id":"2411.11490","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-11-18T11:49:40Z","cross_cats_sorted":[],"title_canon_sha256":"4c03137f39459b0bec4576427f88931df591066f3ff742ca2f7245101cf1aad4","abstract_canon_sha256":"479c2b430d464b98a97cb3872940d965fadaab95674bd59aee0c61f0c44cd805"},"schema_version":"1.0"},"canonical_sha256":"39e22fca65b17876ea045b31914637e8b12c8330ca5b9517a0cc6a038f46e6c5","source":{"kind":"arxiv","id":"2411.11490","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.11490","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"arxiv_version","alias_value":"2411.11490v3","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.11490","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"pith_short_12","alias_value":"HHRC7STFWF4H","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"pith_short_16","alias_value":"HHRC7STFWF4HN2QE","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"pith_short_8","alias_value":"HHRC7STF","created_at":"2026-07-05T11:16:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:HHRC7STFWF4HN2QELMYZCRRX5C","target":"record","payload":{"canonical_record":{"source":{"id":"2411.11490","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-11-18T11:49:40Z","cross_cats_sorted":[],"title_canon_sha256":"4c03137f39459b0bec4576427f88931df591066f3ff742ca2f7245101cf1aad4","abstract_canon_sha256":"479c2b430d464b98a97cb3872940d965fadaab95674bd59aee0c61f0c44cd805"},"schema_version":"1.0"},"canonical_sha256":"39e22fca65b17876ea045b31914637e8b12c8330ca5b9517a0cc6a038f46e6c5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:16:52.552929Z","signature_b64":"oIxLTIyn/FxrGxAEDldO8de3UPfD5i6QX2ClIMJ+UEaPSj0Nts1sZVqMy/IF9niutb5qmIctW5jwOiDT3X3BAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"39e22fca65b17876ea045b31914637e8b12c8330ca5b9517a0cc6a038f46e6c5","last_reissued_at":"2026-07-05T11:16:52.552430Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:16:52.552430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.11490","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:16:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lufBgaH5TDzIDeR06y8AFRQ08TP6PQg5JMgAwmza0hme6sk8iBXHxEbA3B9fM3dzqByaMvIrxMdUX3BjkEruDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:43:02.041437Z"},"content_sha256":"f35a956538db141687ae3ea25c7b4df53c6795b9f7882387754915ef325b202b","schema_version":"1.0","event_id":"sha256:f35a956538db141687ae3ea25c7b4df53c6795b9f7882387754915ef325b202b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:HHRC7STFWF4HN2QELMYZCRRX5C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Fisher information of a cosmic qubit undergoing non-Markovian de Sitter evolution","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Jun Feng, Langxuan Chen","submitted_at":"2024-11-18T11:49:40Z","abstract_excerpt":"We revisit the problem of thermalization process for an Unruh-DeWitt (UDW) detector in de Sitter space. We derive the full dynamics of the detector in the context of open quantum system, neither using Markovian or RWA approximations. We utilize quantum Fisher information (QFI) for Hubble parameter estimation, as a process function to distinguish the thermalization paths in detector Hilbert space, determined by its local properties, e.g., detector energy gap and its initial state preparation, or global spacetime geometry. We find that the non-Markovian contribution in general reduces the QFI co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.11490","kind":"arxiv","version":3},"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/2411.11490/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:16:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2Ke4d9GwRUOK07UHrDvak1ON6cH0Ti03wWZFGHZvykCaAPIcVzv0VuDTq8X+OjRwhAp34JlqfYeoYasyF/EhCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:43:02.041805Z"},"content_sha256":"3e1d6fec2d4589f4d3789672d672d90ca90376af4862237b35dc6431eb410cb0","schema_version":"1.0","event_id":"sha256:3e1d6fec2d4589f4d3789672d672d90ca90376af4862237b35dc6431eb410cb0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HHRC7STFWF4HN2QELMYZCRRX5C/bundle.json","state_url":"https://pith.science/pith/HHRC7STFWF4HN2QELMYZCRRX5C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HHRC7STFWF4HN2QELMYZCRRX5C/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":"2026-07-07T09:43:02Z","links":{"resolver":"https://pith.science/pith/HHRC7STFWF4HN2QELMYZCRRX5C","bundle":"https://pith.science/pith/HHRC7STFWF4HN2QELMYZCRRX5C/bundle.json","state":"https://pith.science/pith/HHRC7STFWF4HN2QELMYZCRRX5C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HHRC7STFWF4HN2QELMYZCRRX5C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:HHRC7STFWF4HN2QELMYZCRRX5C","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":"479c2b430d464b98a97cb3872940d965fadaab95674bd59aee0c61f0c44cd805","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-11-18T11:49:40Z","title_canon_sha256":"4c03137f39459b0bec4576427f88931df591066f3ff742ca2f7245101cf1aad4"},"schema_version":"1.0","source":{"id":"2411.11490","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.11490","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"arxiv_version","alias_value":"2411.11490v3","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.11490","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"pith_short_12","alias_value":"HHRC7STFWF4H","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"pith_short_16","alias_value":"HHRC7STFWF4HN2QE","created_at":"2026-07-05T11:16:52Z"},{"alias_kind":"pith_short_8","alias_value":"HHRC7STF","created_at":"2026-07-05T11:16:52Z"}],"graph_snapshots":[{"event_id":"sha256:3e1d6fec2d4589f4d3789672d672d90ca90376af4862237b35dc6431eb410cb0","target":"graph","created_at":"2026-07-05T11:16:52Z","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/2411.11490/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We revisit the problem of thermalization process for an Unruh-DeWitt (UDW) detector in de Sitter space. We derive the full dynamics of the detector in the context of open quantum system, neither using Markovian or RWA approximations. We utilize quantum Fisher information (QFI) for Hubble parameter estimation, as a process function to distinguish the thermalization paths in detector Hilbert space, determined by its local properties, e.g., detector energy gap and its initial state preparation, or global spacetime geometry. We find that the non-Markovian contribution in general reduces the QFI co","authors_text":"Jun Feng, Langxuan Chen","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-11-18T11:49:40Z","title":"Quantum Fisher information of a cosmic qubit undergoing non-Markovian de Sitter evolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.11490","kind":"arxiv","version":3},"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:f35a956538db141687ae3ea25c7b4df53c6795b9f7882387754915ef325b202b","target":"record","created_at":"2026-07-05T11:16:52Z","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":"479c2b430d464b98a97cb3872940d965fadaab95674bd59aee0c61f0c44cd805","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-11-18T11:49:40Z","title_canon_sha256":"4c03137f39459b0bec4576427f88931df591066f3ff742ca2f7245101cf1aad4"},"schema_version":"1.0","source":{"id":"2411.11490","kind":"arxiv","version":3}},"canonical_sha256":"39e22fca65b17876ea045b31914637e8b12c8330ca5b9517a0cc6a038f46e6c5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"39e22fca65b17876ea045b31914637e8b12c8330ca5b9517a0cc6a038f46e6c5","first_computed_at":"2026-07-05T11:16:52.552430Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:16:52.552430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oIxLTIyn/FxrGxAEDldO8de3UPfD5i6QX2ClIMJ+UEaPSj0Nts1sZVqMy/IF9niutb5qmIctW5jwOiDT3X3BAg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:16:52.552929Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.11490","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f35a956538db141687ae3ea25c7b4df53c6795b9f7882387754915ef325b202b","sha256:3e1d6fec2d4589f4d3789672d672d90ca90376af4862237b35dc6431eb410cb0"],"state_sha256":"165ca2f1ecf670d932ce9d63b30e4215f0eb0ec18529f7a412f3e0a650a071fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"By6VKE2uHm1BrgEehKWd+pycw/ZFbGqhJNN7Sh8kHECkfQCDLX18jAhg5vUrHHg0paH5bix30BJH5Z8Y+6viBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:43:02.044201Z","bundle_sha256":"7e180b9657fc090978d3a155481ee3358b27a34c4cc6f96b9607e525cd9b7aa5"}}