{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:Z63ALUGGYAZDWDXEBJA7Z7WYCA","short_pith_number":"pith:Z63ALUGG","schema_version":"1.0","canonical_sha256":"cfb605d0c6c0323b0ee40a41fcfed8101a359a8f2bf3a36649b8b64b5e838cfa","source":{"kind":"arxiv","id":"1108.0883","version":1},"attestation_state":"computed","paper":{"title":"Clocks and Relationalism in the Thermal Time Hypothesis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Gerard J. Milburn, Nicolas C. Menicucci, S. Jay Olson","submitted_at":"2011-08-03T16:15:56Z","abstract_excerpt":"The Thermal Time Hypotheis (TTH) has been proposed as a general method for identifying a time variable from within background-free theories which do not come equipped with a pre-defined clock variable. Here, we explore some implications of the TTH in an entirely relational context by constructing a protocol for the creation of \"thermal clocks\" from components of a large but finite quantum mechanical system. The protocol applies locally, in the sense that we do not attempt to construct a single clock describing the evolution of the entire system, but instead we construct clocks which describe t"},"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":"1108.0883","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-08-03T16:15:56Z","cross_cats_sorted":[],"title_canon_sha256":"2f9e980c28112b4c67ee136310381b3c538391cbafb114d9ab9bbf691f5edb82","abstract_canon_sha256":"28d3fc9e3085d000015fb563fe80472a3d1ab63776fab21f373b77e30e5a00e1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:16:21.851918Z","signature_b64":"6m9Bj4PqViqTZ9L3a3brnYtB3Y5T1+d/ZzX0Tx9OZu8yCef88jPchst1QHLRr64LdVInCJn5eQchepi1z6SMBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cfb605d0c6c0323b0ee40a41fcfed8101a359a8f2bf3a36649b8b64b5e838cfa","last_reissued_at":"2026-05-18T04:16:21.851251Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:16:21.851251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Clocks and Relationalism in the Thermal Time Hypothesis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Gerard J. Milburn, Nicolas C. Menicucci, S. Jay Olson","submitted_at":"2011-08-03T16:15:56Z","abstract_excerpt":"The Thermal Time Hypotheis (TTH) has been proposed as a general method for identifying a time variable from within background-free theories which do not come equipped with a pre-defined clock variable. Here, we explore some implications of the TTH in an entirely relational context by constructing a protocol for the creation of \"thermal clocks\" from components of a large but finite quantum mechanical system. The protocol applies locally, in the sense that we do not attempt to construct a single clock describing the evolution of the entire system, but instead we construct clocks which describe t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0883","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":"1108.0883","created_at":"2026-05-18T04:16:21.851357+00:00"},{"alias_kind":"arxiv_version","alias_value":"1108.0883v1","created_at":"2026-05-18T04:16:21.851357+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0883","created_at":"2026-05-18T04:16:21.851357+00:00"},{"alias_kind":"pith_short_12","alias_value":"Z63ALUGGYAZD","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_16","alias_value":"Z63ALUGGYAZDWDXE","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_8","alias_value":"Z63ALUGG","created_at":"2026-05-18T12:26:47.523578+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/Z63ALUGGYAZDWDXEBJA7Z7WYCA","json":"https://pith.science/pith/Z63ALUGGYAZDWDXEBJA7Z7WYCA.json","graph_json":"https://pith.science/api/pith-number/Z63ALUGGYAZDWDXEBJA7Z7WYCA/graph.json","events_json":"https://pith.science/api/pith-number/Z63ALUGGYAZDWDXEBJA7Z7WYCA/events.json","paper":"https://pith.science/paper/Z63ALUGG"},"agent_actions":{"view_html":"https://pith.science/pith/Z63ALUGGYAZDWDXEBJA7Z7WYCA","download_json":"https://pith.science/pith/Z63ALUGGYAZDWDXEBJA7Z7WYCA.json","view_paper":"https://pith.science/paper/Z63ALUGG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1108.0883&json=true","fetch_graph":"https://pith.science/api/pith-number/Z63ALUGGYAZDWDXEBJA7Z7WYCA/graph.json","fetch_events":"https://pith.science/api/pith-number/Z63ALUGGYAZDWDXEBJA7Z7WYCA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Z63ALUGGYAZDWDXEBJA7Z7WYCA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Z63ALUGGYAZDWDXEBJA7Z7WYCA/action/storage_attestation","attest_author":"https://pith.science/pith/Z63ALUGGYAZDWDXEBJA7Z7WYCA/action/author_attestation","sign_citation":"https://pith.science/pith/Z63ALUGGYAZDWDXEBJA7Z7WYCA/action/citation_signature","submit_replication":"https://pith.science/pith/Z63ALUGGYAZDWDXEBJA7Z7WYCA/action/replication_record"}},"created_at":"2026-05-18T04:16:21.851357+00:00","updated_at":"2026-05-18T04:16:21.851357+00:00"}