{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:VOORRF6HOAY4YT24JIJIIXR7DC","short_pith_number":"pith:VOORRF6H","canonical_record":{"source":{"id":"2303.03353","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-03-06T18:40:00Z","cross_cats_sorted":[],"title_canon_sha256":"a6a043221841c96c801c01c1c3cbfdf190a8919b45ae40e020877b35f06bdd33","abstract_canon_sha256":"efff7a86bf78769bb7ffa3c1180a585dcae0f6dcee2c85c2bcd3e5b13e8925e7"},"schema_version":"1.0"},"canonical_sha256":"ab9d1897c77031cc4f5c4a12845e3f1899e9247f17c76fe437ba4c0dac2a4bb3","source":{"kind":"arxiv","id":"2303.03353","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.03353","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"arxiv_version","alias_value":"2303.03353v1","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.03353","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"pith_short_12","alias_value":"VOORRF6HOAY4","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"pith_short_16","alias_value":"VOORRF6HOAY4YT24","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"pith_short_8","alias_value":"VOORRF6H","created_at":"2026-07-05T05:48:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:VOORRF6HOAY4YT24JIJIIXR7DC","target":"record","payload":{"canonical_record":{"source":{"id":"2303.03353","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-03-06T18:40:00Z","cross_cats_sorted":[],"title_canon_sha256":"a6a043221841c96c801c01c1c3cbfdf190a8919b45ae40e020877b35f06bdd33","abstract_canon_sha256":"efff7a86bf78769bb7ffa3c1180a585dcae0f6dcee2c85c2bcd3e5b13e8925e7"},"schema_version":"1.0"},"canonical_sha256":"ab9d1897c77031cc4f5c4a12845e3f1899e9247f17c76fe437ba4c0dac2a4bb3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:48:28.661829Z","signature_b64":"8CK3fu+MwbqLqi6QrsV/KV1ZzekidqJnQvATV5lNB6gLQZaoLPRAyROpBBJl4jNHel6mH7mi6Vb5GhWDXMu8CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ab9d1897c77031cc4f5c4a12845e3f1899e9247f17c76fe437ba4c0dac2a4bb3","last_reissued_at":"2026-07-05T05:48:28.661287Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:48:28.661287Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.03353","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":"2026-07-05T05:48:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1d5d39SX56N3EGoBh7VQfP+XH3wWPvKgQK6J3DTWXUjFxm1o+24qjA55cztYhQhISJnq/p8yIm1NUPVH7tWWDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T02:38:48.284851Z"},"content_sha256":"63e71843b7cb8d88fa9db6e3fb999474b48a81bb9ed7b5425a1660c9277b8951","schema_version":"1.0","event_id":"sha256:63e71843b7cb8d88fa9db6e3fb999474b48a81bb9ed7b5425a1660c9277b8951"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:VOORRF6HOAY4YT24JIJIIXR7DC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Which theories have a measurement problem?","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Jonathan Barrett, Nick Ormrod, V. Vilasini","submitted_at":"2023-03-06T18:40:00Z","abstract_excerpt":"It is shown that any theory that has certain properties has a measurement problem, in the sense that it makes predictions that are incompatible with measurement outcomes being absolute (that is, unique and non-relational). These properties are Bell Nonlocality, Information Preservation, and Local Dynamics. The result is extended by deriving Local Dynamics from No Superluminal Influences, Separable Dynamics, and Consistent Embeddings. As well as explaining why the existing Wigner's-friend-inspired no-go theorems hold for quantum theory, these results also shed light on whether a future theory o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.03353","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2303.03353/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":"2026-07-05T05:48:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sofAOWkLjoYXXVwoxqorcci7VV0QcM0UKNOEzH2bdYA9E/iZM0Z1AZyuPubotPQa/vK0kg93W6i4UtYjbD9zDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T02:38:48.285405Z"},"content_sha256":"c7c5314a27566aa27c7e70614e6b75aa9f46e0fef22efd47df308ee994bfdee9","schema_version":"1.0","event_id":"sha256:c7c5314a27566aa27c7e70614e6b75aa9f46e0fef22efd47df308ee994bfdee9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VOORRF6HOAY4YT24JIJIIXR7DC/bundle.json","state_url":"https://pith.science/pith/VOORRF6HOAY4YT24JIJIIXR7DC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VOORRF6HOAY4YT24JIJIIXR7DC/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":"2026-08-06T02:38:48Z","links":{"resolver":"https://pith.science/pith/VOORRF6HOAY4YT24JIJIIXR7DC","bundle":"https://pith.science/pith/VOORRF6HOAY4YT24JIJIIXR7DC/bundle.json","state":"https://pith.science/pith/VOORRF6HOAY4YT24JIJIIXR7DC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VOORRF6HOAY4YT24JIJIIXR7DC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:VOORRF6HOAY4YT24JIJIIXR7DC","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":"efff7a86bf78769bb7ffa3c1180a585dcae0f6dcee2c85c2bcd3e5b13e8925e7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-03-06T18:40:00Z","title_canon_sha256":"a6a043221841c96c801c01c1c3cbfdf190a8919b45ae40e020877b35f06bdd33"},"schema_version":"1.0","source":{"id":"2303.03353","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.03353","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"arxiv_version","alias_value":"2303.03353v1","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.03353","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"pith_short_12","alias_value":"VOORRF6HOAY4","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"pith_short_16","alias_value":"VOORRF6HOAY4YT24","created_at":"2026-07-05T05:48:28Z"},{"alias_kind":"pith_short_8","alias_value":"VOORRF6H","created_at":"2026-07-05T05:48:28Z"}],"graph_snapshots":[{"event_id":"sha256:c7c5314a27566aa27c7e70614e6b75aa9f46e0fef22efd47df308ee994bfdee9","target":"graph","created_at":"2026-07-05T05:48:28Z","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/2303.03353/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is shown that any theory that has certain properties has a measurement problem, in the sense that it makes predictions that are incompatible with measurement outcomes being absolute (that is, unique and non-relational). These properties are Bell Nonlocality, Information Preservation, and Local Dynamics. The result is extended by deriving Local Dynamics from No Superluminal Influences, Separable Dynamics, and Consistent Embeddings. As well as explaining why the existing Wigner's-friend-inspired no-go theorems hold for quantum theory, these results also shed light on whether a future theory o","authors_text":"Jonathan Barrett, Nick Ormrod, V. Vilasini","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-03-06T18:40:00Z","title":"Which theories have a measurement problem?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.03353","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":"sha256:63e71843b7cb8d88fa9db6e3fb999474b48a81bb9ed7b5425a1660c9277b8951","target":"record","created_at":"2026-07-05T05:48:28Z","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":"efff7a86bf78769bb7ffa3c1180a585dcae0f6dcee2c85c2bcd3e5b13e8925e7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-03-06T18:40:00Z","title_canon_sha256":"a6a043221841c96c801c01c1c3cbfdf190a8919b45ae40e020877b35f06bdd33"},"schema_version":"1.0","source":{"id":"2303.03353","kind":"arxiv","version":1}},"canonical_sha256":"ab9d1897c77031cc4f5c4a12845e3f1899e9247f17c76fe437ba4c0dac2a4bb3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ab9d1897c77031cc4f5c4a12845e3f1899e9247f17c76fe437ba4c0dac2a4bb3","first_computed_at":"2026-07-05T05:48:28.661287Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:48:28.661287Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8CK3fu+MwbqLqi6QrsV/KV1ZzekidqJnQvATV5lNB6gLQZaoLPRAyROpBBJl4jNHel6mH7mi6Vb5GhWDXMu8CA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:48:28.661829Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.03353","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63e71843b7cb8d88fa9db6e3fb999474b48a81bb9ed7b5425a1660c9277b8951","sha256:c7c5314a27566aa27c7e70614e6b75aa9f46e0fef22efd47df308ee994bfdee9"],"state_sha256":"be20ca391737008e81ba29be6df27a86519587d9242c2d8d58ec8fdca73fb253"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"96+T7OK64wJH77Eco8w+EfUghCj92vMFScyaUFralVArdLf2LdYoVJIDox954uDirkazdMhgGqM4MDYlljIsCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T02:38:48.291186Z","bundle_sha256":"01fc9f24f902537fe0f6485a86234efffdff656eafadba4743ae930c9a32649a"}}