{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:NWN5TTXTJOK65R2RCRSCXQVBN2","short_pith_number":"pith:NWN5TTXT","canonical_record":{"source":{"id":"1411.5524","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-11-20T12:32:41Z","cross_cats_sorted":[],"title_canon_sha256":"05c8bdf771f7e31daaf3ef4f19c5d1840add59460923eb2c3cdc13bf945b7f5e","abstract_canon_sha256":"754cb3135e77b4aa94538ee64c0a91de6ee5b22a9e36d6843d7481bced5adf6a"},"schema_version":"1.0"},"canonical_sha256":"6d9bd9cef34b95eec75114642bc2a16e9e6978ef1d07f685644889cf11cfdcfc","source":{"kind":"arxiv","id":"1411.5524","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.5524","created_at":"2026-05-18T01:12:36Z"},{"alias_kind":"arxiv_version","alias_value":"1411.5524v2","created_at":"2026-05-18T01:12:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.5524","created_at":"2026-05-18T01:12:36Z"},{"alias_kind":"pith_short_12","alias_value":"NWN5TTXTJOK6","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NWN5TTXTJOK65R2R","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NWN5TTXT","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:NWN5TTXTJOK65R2RCRSCXQVBN2","target":"record","payload":{"canonical_record":{"source":{"id":"1411.5524","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-11-20T12:32:41Z","cross_cats_sorted":[],"title_canon_sha256":"05c8bdf771f7e31daaf3ef4f19c5d1840add59460923eb2c3cdc13bf945b7f5e","abstract_canon_sha256":"754cb3135e77b4aa94538ee64c0a91de6ee5b22a9e36d6843d7481bced5adf6a"},"schema_version":"1.0"},"canonical_sha256":"6d9bd9cef34b95eec75114642bc2a16e9e6978ef1d07f685644889cf11cfdcfc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:36.501082Z","signature_b64":"kXesnARinZNKXeYR76acOh01S6Mrjfa3rW+ppkGRIRDxU/iHg/aiNp/MZBIWZoJEFbO5yKa7KY56i0EeEgvRAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d9bd9cef34b95eec75114642bc2a16e9e6978ef1d07f685644889cf11cfdcfc","last_reissued_at":"2026-05-18T01:12:36.500433Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:36.500433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.5524","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:12:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z4m8PB56b9Uo8Z88R0cCUC0HCvlM1w9Jt/9PTOkBBOc0MgQbe2b7amzb/0Csgj1jl1PcOeTP7c/fjk+obDeqBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T22:29:18.458243Z"},"content_sha256":"fd75c7f29d333bcfcbad4f6ffafe507b69f10202c608702fc05afa616a4f4384","schema_version":"1.0","event_id":"sha256:fd75c7f29d333bcfcbad4f6ffafe507b69f10202c608702fc05afa616a4f4384"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:NWN5TTXTJOK65R2RCRSCXQVBN2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Incompleteness of measurement apparatuses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Petr Hajicek","submitted_at":"2014-11-20T12:32:41Z","abstract_excerpt":"A complete apparatus is defined as reacting to every state of the measured system. Standard quantum mechanics of indistinguishable particles is shown to imply that apparatuses must be incomplete or else they would be drowned out by noise. Each quantum observable is then an abstract representation of many measurement apparatuses, each incomplete in a different way. Moreover, a measured system must be prepared in a state that is orthogonal to the states of all particles of the same type in the environment. This is the main purpose of preparations. A system so prepared is said to have a \"separati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.5524","kind":"arxiv","version":2},"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":"2026-05-18T01:12:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h/2J9BDVgQB8rB8vEjHgBScZ74OlJu4yy70BRMBrJLK0gAjP4RmZDoholrOKoGgfl75p6ZA7oN8HNGI3DgDyAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T22:29:18.458627Z"},"content_sha256":"fa1620253b3f28e4947a67c71063670d1492f0c0fdb07b58f2ad7c83f510cfc4","schema_version":"1.0","event_id":"sha256:fa1620253b3f28e4947a67c71063670d1492f0c0fdb07b58f2ad7c83f510cfc4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NWN5TTXTJOK65R2RCRSCXQVBN2/bundle.json","state_url":"https://pith.science/pith/NWN5TTXTJOK65R2RCRSCXQVBN2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NWN5TTXTJOK65R2RCRSCXQVBN2/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":"2026-07-02T22:29:18Z","links":{"resolver":"https://pith.science/pith/NWN5TTXTJOK65R2RCRSCXQVBN2","bundle":"https://pith.science/pith/NWN5TTXTJOK65R2RCRSCXQVBN2/bundle.json","state":"https://pith.science/pith/NWN5TTXTJOK65R2RCRSCXQVBN2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NWN5TTXTJOK65R2RCRSCXQVBN2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:NWN5TTXTJOK65R2RCRSCXQVBN2","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":"754cb3135e77b4aa94538ee64c0a91de6ee5b22a9e36d6843d7481bced5adf6a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-11-20T12:32:41Z","title_canon_sha256":"05c8bdf771f7e31daaf3ef4f19c5d1840add59460923eb2c3cdc13bf945b7f5e"},"schema_version":"1.0","source":{"id":"1411.5524","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.5524","created_at":"2026-05-18T01:12:36Z"},{"alias_kind":"arxiv_version","alias_value":"1411.5524v2","created_at":"2026-05-18T01:12:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.5524","created_at":"2026-05-18T01:12:36Z"},{"alias_kind":"pith_short_12","alias_value":"NWN5TTXTJOK6","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NWN5TTXTJOK65R2R","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NWN5TTXT","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:fa1620253b3f28e4947a67c71063670d1492f0c0fdb07b58f2ad7c83f510cfc4","target":"graph","created_at":"2026-05-18T01:12:36Z","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":"A complete apparatus is defined as reacting to every state of the measured system. Standard quantum mechanics of indistinguishable particles is shown to imply that apparatuses must be incomplete or else they would be drowned out by noise. Each quantum observable is then an abstract representation of many measurement apparatuses, each incomplete in a different way. Moreover, a measured system must be prepared in a state that is orthogonal to the states of all particles of the same type in the environment. This is the main purpose of preparations. A system so prepared is said to have a \"separati","authors_text":"Petr Hajicek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-11-20T12:32:41Z","title":"Incompleteness of measurement apparatuses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.5524","kind":"arxiv","version":2},"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:fd75c7f29d333bcfcbad4f6ffafe507b69f10202c608702fc05afa616a4f4384","target":"record","created_at":"2026-05-18T01:12:36Z","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":"754cb3135e77b4aa94538ee64c0a91de6ee5b22a9e36d6843d7481bced5adf6a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-11-20T12:32:41Z","title_canon_sha256":"05c8bdf771f7e31daaf3ef4f19c5d1840add59460923eb2c3cdc13bf945b7f5e"},"schema_version":"1.0","source":{"id":"1411.5524","kind":"arxiv","version":2}},"canonical_sha256":"6d9bd9cef34b95eec75114642bc2a16e9e6978ef1d07f685644889cf11cfdcfc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6d9bd9cef34b95eec75114642bc2a16e9e6978ef1d07f685644889cf11cfdcfc","first_computed_at":"2026-05-18T01:12:36.500433Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:36.500433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kXesnARinZNKXeYR76acOh01S6Mrjfa3rW+ppkGRIRDxU/iHg/aiNp/MZBIWZoJEFbO5yKa7KY56i0EeEgvRAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:36.501082Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.5524","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fd75c7f29d333bcfcbad4f6ffafe507b69f10202c608702fc05afa616a4f4384","sha256:fa1620253b3f28e4947a67c71063670d1492f0c0fdb07b58f2ad7c83f510cfc4"],"state_sha256":"b80753e51769fca3c444ba09ac413020ad72c20652cb7d46a66d641fea319fe7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gJeYbrmHSN3nOba2C3IBberjmd1nnlMOZNS6cD1Jk3eSkHpxb08rXCTmqnvNh5QkJ8VvzCTfUhHaYpWKuLSmDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T22:29:18.461088Z","bundle_sha256":"adb6c7016411d28e1d0cc702d04de85ded0c8b87bf96a967f83cdabb19554c61"}}