{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:4ZDHSI7WAQXTF5AIPCQTIBOVMX","short_pith_number":"pith:4ZDHSI7W","canonical_record":{"source":{"id":"1111.6304","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-11-27T21:50:14Z","cross_cats_sorted":[],"title_canon_sha256":"1ca4d8d7ada8380c94daaaab6bc98f76612f6ca0a9d9f22344db2f7d569a8178","abstract_canon_sha256":"be6fc11e455144e5064fea6c545227644de3aa501f20f6eb0b77cbec354e7376"},"schema_version":"1.0"},"canonical_sha256":"e6467923f6042f32f40878a13405d565c63150301e48402ab19a9fc497c29eb9","source":{"kind":"arxiv","id":"1111.6304","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.6304","created_at":"2026-05-18T04:07:31Z"},{"alias_kind":"arxiv_version","alias_value":"1111.6304v1","created_at":"2026-05-18T04:07:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.6304","created_at":"2026-05-18T04:07:31Z"},{"alias_kind":"pith_short_12","alias_value":"4ZDHSI7WAQXT","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"4ZDHSI7WAQXTF5AI","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"4ZDHSI7W","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:4ZDHSI7WAQXTF5AIPCQTIBOVMX","target":"record","payload":{"canonical_record":{"source":{"id":"1111.6304","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-11-27T21:50:14Z","cross_cats_sorted":[],"title_canon_sha256":"1ca4d8d7ada8380c94daaaab6bc98f76612f6ca0a9d9f22344db2f7d569a8178","abstract_canon_sha256":"be6fc11e455144e5064fea6c545227644de3aa501f20f6eb0b77cbec354e7376"},"schema_version":"1.0"},"canonical_sha256":"e6467923f6042f32f40878a13405d565c63150301e48402ab19a9fc497c29eb9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:07:31.327447Z","signature_b64":"3Yi43wfq5wRYQD0zyBO+D/H1H+aznzEYIcPCUMT9nd9tbW+8nVyeQEoIrPGGVWfvj3c7DUsYiab6pvHkzalgDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e6467923f6042f32f40878a13405d565c63150301e48402ab19a9fc497c29eb9","last_reissued_at":"2026-05-18T04:07:31.326951Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:07:31.326951Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.6304","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":"2026-05-18T04:07:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lMbbBos/LiKAnNSliuSl2/5SFWtQIpNWe0qFUUnlBYZ4jcvkSTbpvKVs+Hq7/wUdmwWo3ubUG9J1cqR4m2YzBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:19:37.783114Z"},"content_sha256":"d50d9de3839c3c5f440205257ba11f4ca0233fdd90886ea4ec947ce18f27e4f1","schema_version":"1.0","event_id":"sha256:d50d9de3839c3c5f440205257ba11f4ca0233fdd90886ea4ec947ce18f27e4f1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:4ZDHSI7WAQXTF5AIPCQTIBOVMX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generalisations of the recent Pusey-Barrett-Rudolph theorem for statistical models of quantum phenomena","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Michael J. W. Hall","submitted_at":"2011-11-27T21:50:14Z","abstract_excerpt":"Pusey, Barrett and Rudolph (PBR) have recently given a completely novel argument that restricts the class of possible models for quantum phenomena (arXiv:1111.3328). In these notes the assumptions used by PBR are considerably weakened, to further restrict the class of possible models. The `factorisability' assumption used by PBR is replaced by a far weaker `compatibility' assumption for uncorrelated quantum subsystems which, moreover, does not require the assignation of separate underlying properties to each subsystem (i.e, reductionism). Further, it is shown that an assumption of measurement "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.6304","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":"2026-05-18T04:07:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vmtdZRKhBtKisofhngdW8Mvtocck4ZhD3KzQv7DPo089uoX+A1sXC7mYmZOYgGPlFuvWcAY40sy2aLl0NFT+BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:19:37.783472Z"},"content_sha256":"656009fe0a9a214d274d87254b1ce2bd4ac877210efe00bbe3c0294751de0bde","schema_version":"1.0","event_id":"sha256:656009fe0a9a214d274d87254b1ce2bd4ac877210efe00bbe3c0294751de0bde"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4ZDHSI7WAQXTF5AIPCQTIBOVMX/bundle.json","state_url":"https://pith.science/pith/4ZDHSI7WAQXTF5AIPCQTIBOVMX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4ZDHSI7WAQXTF5AIPCQTIBOVMX/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":"2026-05-28T01:19:37Z","links":{"resolver":"https://pith.science/pith/4ZDHSI7WAQXTF5AIPCQTIBOVMX","bundle":"https://pith.science/pith/4ZDHSI7WAQXTF5AIPCQTIBOVMX/bundle.json","state":"https://pith.science/pith/4ZDHSI7WAQXTF5AIPCQTIBOVMX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4ZDHSI7WAQXTF5AIPCQTIBOVMX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:4ZDHSI7WAQXTF5AIPCQTIBOVMX","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":"be6fc11e455144e5064fea6c545227644de3aa501f20f6eb0b77cbec354e7376","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-11-27T21:50:14Z","title_canon_sha256":"1ca4d8d7ada8380c94daaaab6bc98f76612f6ca0a9d9f22344db2f7d569a8178"},"schema_version":"1.0","source":{"id":"1111.6304","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.6304","created_at":"2026-05-18T04:07:31Z"},{"alias_kind":"arxiv_version","alias_value":"1111.6304v1","created_at":"2026-05-18T04:07:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.6304","created_at":"2026-05-18T04:07:31Z"},{"alias_kind":"pith_short_12","alias_value":"4ZDHSI7WAQXT","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"4ZDHSI7WAQXTF5AI","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"4ZDHSI7W","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:656009fe0a9a214d274d87254b1ce2bd4ac877210efe00bbe3c0294751de0bde","target":"graph","created_at":"2026-05-18T04:07:31Z","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":"Pusey, Barrett and Rudolph (PBR) have recently given a completely novel argument that restricts the class of possible models for quantum phenomena (arXiv:1111.3328). In these notes the assumptions used by PBR are considerably weakened, to further restrict the class of possible models. The `factorisability' assumption used by PBR is replaced by a far weaker `compatibility' assumption for uncorrelated quantum subsystems which, moreover, does not require the assignation of separate underlying properties to each subsystem (i.e, reductionism). Further, it is shown that an assumption of measurement ","authors_text":"Michael J. W. Hall","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-11-27T21:50:14Z","title":"Generalisations of the recent Pusey-Barrett-Rudolph theorem for statistical models of quantum phenomena"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.6304","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:d50d9de3839c3c5f440205257ba11f4ca0233fdd90886ea4ec947ce18f27e4f1","target":"record","created_at":"2026-05-18T04:07:31Z","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":"be6fc11e455144e5064fea6c545227644de3aa501f20f6eb0b77cbec354e7376","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-11-27T21:50:14Z","title_canon_sha256":"1ca4d8d7ada8380c94daaaab6bc98f76612f6ca0a9d9f22344db2f7d569a8178"},"schema_version":"1.0","source":{"id":"1111.6304","kind":"arxiv","version":1}},"canonical_sha256":"e6467923f6042f32f40878a13405d565c63150301e48402ab19a9fc497c29eb9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e6467923f6042f32f40878a13405d565c63150301e48402ab19a9fc497c29eb9","first_computed_at":"2026-05-18T04:07:31.326951Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:07:31.326951Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3Yi43wfq5wRYQD0zyBO+D/H1H+aznzEYIcPCUMT9nd9tbW+8nVyeQEoIrPGGVWfvj3c7DUsYiab6pvHkzalgDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:07:31.327447Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.6304","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d50d9de3839c3c5f440205257ba11f4ca0233fdd90886ea4ec947ce18f27e4f1","sha256:656009fe0a9a214d274d87254b1ce2bd4ac877210efe00bbe3c0294751de0bde"],"state_sha256":"36c28df577b9ea46f4643ac4d0d783512800a5d797cd58507f30f357ff4ac346"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"92UU6iOzU+fz1VxnEZcgA7EP8ghdzu9g3xl87pj6yMU0R2AljFboUebgDZ4eQ8UN4WB7wbaQAPYxObxjAUidAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T01:19:37.785517Z","bundle_sha256":"e7533b80293bc499936722b526088c33e750a9150aa4b957fd3035712d95e4d0"}}