{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:2TV2L76ZF5IK427TNGNYO5KCPM","short_pith_number":"pith:2TV2L76Z","schema_version":"1.0","canonical_sha256":"d4eba5ffd92f50ae6bf3699b8775427b022bc766797f8eaaef58eed55f849d77","source":{"kind":"arxiv","id":"1507.06202","version":1},"attestation_state":"computed","paper":{"title":"A Heuristic Approach to the Quantum Measurement Problem: How to Distinguish Particle Detectors from Ordinary Objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"R. Merlin","submitted_at":"2015-07-22T14:21:18Z","abstract_excerpt":"Elementary particle detectors fall broadly into only two classes: phase-transformation devices, such as the bubble chamber, and charge-transfer devices like the Geiger-Mueller tube. Quantum measurements are seen to involve transitions from a long-lived metastable state (e. g., superheated liquid or a gas of atoms between charged capacitor plates) to a thermodinamically stable condition. A detector is then a specially prepared object undergoing a metastable-to-stable transformation that is significantly enhanced by the presence of the measured particle, which behaves, in some sense, as the seed"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1507.06202","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-07-22T14:21:18Z","cross_cats_sorted":[],"title_canon_sha256":"dc0c686196e70a5b217fe5d2f03a33a0b1695edde19fd5ddf7726608735afa54","abstract_canon_sha256":"7909e93cbaddf215f88e92dc4c2767ce1c4797b1dd4159ba92438b1b89e46b34"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:37.414266Z","signature_b64":"7JaXFjKjyNpesJEVhIoFnTXOffifsqMgkul5dB0LFuxOLb3zu2wBd2iqaBKKwdeoXePXvjGAKf+paaqbmNerCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d4eba5ffd92f50ae6bf3699b8775427b022bc766797f8eaaef58eed55f849d77","last_reissued_at":"2026-05-18T01:31:37.413523Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:37.413523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Heuristic Approach to the Quantum Measurement Problem: How to Distinguish Particle Detectors from Ordinary Objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"R. Merlin","submitted_at":"2015-07-22T14:21:18Z","abstract_excerpt":"Elementary particle detectors fall broadly into only two classes: phase-transformation devices, such as the bubble chamber, and charge-transfer devices like the Geiger-Mueller tube. Quantum measurements are seen to involve transitions from a long-lived metastable state (e. g., superheated liquid or a gas of atoms between charged capacitor plates) to a thermodinamically stable condition. A detector is then a specially prepared object undergoing a metastable-to-stable transformation that is significantly enhanced by the presence of the measured particle, which behaves, in some sense, as the seed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.06202","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1507.06202","created_at":"2026-05-18T01:31:37.413644+00:00"},{"alias_kind":"arxiv_version","alias_value":"1507.06202v1","created_at":"2026-05-18T01:31:37.413644+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.06202","created_at":"2026-05-18T01:31:37.413644+00:00"},{"alias_kind":"pith_short_12","alias_value":"2TV2L76ZF5IK","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_16","alias_value":"2TV2L76ZF5IK427T","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_8","alias_value":"2TV2L76Z","created_at":"2026-05-18T12:29:02.477457+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2TV2L76ZF5IK427TNGNYO5KCPM","json":"https://pith.science/pith/2TV2L76ZF5IK427TNGNYO5KCPM.json","graph_json":"https://pith.science/api/pith-number/2TV2L76ZF5IK427TNGNYO5KCPM/graph.json","events_json":"https://pith.science/api/pith-number/2TV2L76ZF5IK427TNGNYO5KCPM/events.json","paper":"https://pith.science/paper/2TV2L76Z"},"agent_actions":{"view_html":"https://pith.science/pith/2TV2L76ZF5IK427TNGNYO5KCPM","download_json":"https://pith.science/pith/2TV2L76ZF5IK427TNGNYO5KCPM.json","view_paper":"https://pith.science/paper/2TV2L76Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1507.06202&json=true","fetch_graph":"https://pith.science/api/pith-number/2TV2L76ZF5IK427TNGNYO5KCPM/graph.json","fetch_events":"https://pith.science/api/pith-number/2TV2L76ZF5IK427TNGNYO5KCPM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2TV2L76ZF5IK427TNGNYO5KCPM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2TV2L76ZF5IK427TNGNYO5KCPM/action/storage_attestation","attest_author":"https://pith.science/pith/2TV2L76ZF5IK427TNGNYO5KCPM/action/author_attestation","sign_citation":"https://pith.science/pith/2TV2L76ZF5IK427TNGNYO5KCPM/action/citation_signature","submit_replication":"https://pith.science/pith/2TV2L76ZF5IK427TNGNYO5KCPM/action/replication_record"}},"created_at":"2026-05-18T01:31:37.413644+00:00","updated_at":"2026-05-18T01:31:37.413644+00:00"}