{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:6FE4BDJGFJNUKF3R2XODVOMDNI","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":"39d83f76f195ffb6f2f108b2546a435577f6f023faf117c0577d2b52bfbece29","cross_cats_sorted":["hep-th","physics.hist-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2020-11-16T19:00:01Z","title_canon_sha256":"89c80d8c5e59df88bf66fb3430f8fa96e6e5702ca256de82a5a3f61a94817d9f"},"schema_version":"1.0","source":{"id":"2011.08190","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.08190","created_at":"2026-07-05T02:47:27Z"},{"alias_kind":"arxiv_version","alias_value":"2011.08190v1","created_at":"2026-07-05T02:47:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.08190","created_at":"2026-07-05T02:47:27Z"},{"alias_kind":"pith_short_12","alias_value":"6FE4BDJGFJNU","created_at":"2026-07-05T02:47:27Z"},{"alias_kind":"pith_short_16","alias_value":"6FE4BDJGFJNUKF3R","created_at":"2026-07-05T02:47:27Z"},{"alias_kind":"pith_short_8","alias_value":"6FE4BDJG","created_at":"2026-07-05T02:47:27Z"}],"graph_snapshots":[{"event_id":"sha256:066e686924cd8cb7a4c4366e27a378951371430d83eec850021ae24855d48831","target":"graph","created_at":"2026-07-05T02:47:27Z","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/2011.08190/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We argue that Wigner's friend thought experiment does not support observer dependence of quantum states. An analysis in terms of history vectors suggests that quantum collapse is to be understood as collapse of histories rather than collapse of states.","authors_text":"Leonardo Castellani","cross_cats":["hep-th","physics.hist-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2020-11-16T19:00:01Z","title":"No relation for Wigner's friend"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.08190","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":"sha256:90452622e256d987f7c382705e8a8ec31fab72bdb4dc9948a7e92a09d9ebb4c7","target":"record","created_at":"2026-07-05T02:47:27Z","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":"39d83f76f195ffb6f2f108b2546a435577f6f023faf117c0577d2b52bfbece29","cross_cats_sorted":["hep-th","physics.hist-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2020-11-16T19:00:01Z","title_canon_sha256":"89c80d8c5e59df88bf66fb3430f8fa96e6e5702ca256de82a5a3f61a94817d9f"},"schema_version":"1.0","source":{"id":"2011.08190","kind":"arxiv","version":1}},"canonical_sha256":"f149c08d262a5b451771d5dc3ab9836a3b4993e3ff81f1bd23517ab69827c012","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f149c08d262a5b451771d5dc3ab9836a3b4993e3ff81f1bd23517ab69827c012","first_computed_at":"2026-07-05T02:47:27.527850Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:47:27.527850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MPag3GjEV60xEKBITTGXm3lZWjthmV0rkvWsTHIlrvINwYgiwNo62109eQm8uen7PTtKQyNK+ELYYs7dgoUUDw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:47:27.528321Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.08190","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90452622e256d987f7c382705e8a8ec31fab72bdb4dc9948a7e92a09d9ebb4c7","sha256:066e686924cd8cb7a4c4366e27a378951371430d83eec850021ae24855d48831"],"state_sha256":"bbce1a5589e00eba960b98a763cc8a203c16e354306350c8267fa2432077dadc"}