{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:IS24LISZSG55TLOMAB6MIHQA3B","short_pith_number":"pith:IS24LISZ","schema_version":"1.0","canonical_sha256":"44b5c5a25991bbd9adcc007cc41e00d87b58a2d32b7679141ea3310bf1c6a616","source":{"kind":"arxiv","id":"1601.07477","version":2},"attestation_state":"computed","paper":{"title":"A path-integral approach to the problem of time","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Martin Bojowald, M. M. Amaral","submitted_at":"2016-01-27T18:10:34Z","abstract_excerpt":"Quantum transition amplitudes are formulated for a model system with local internal time, using path integrals. The amplitudes are shown to be more regular near a turning point of internal time than could be expected based on existing canonical treatments. In particular, a successful transition through a turning point is provided in the model system, together with a new definition of such a transition in general terms. Some of the results rely on a fruitful relation between the problem of time and general Gribov problems."},"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":"1601.07477","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-01-27T18:10:34Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"27fb0ead840aa51a2fe6928cb438618f80c9783f6fed700d2948c8cd77646329","abstract_canon_sha256":"ef8fbe3bc915c53efa016ae6568e9d001edee8f700af814d43300e5fa75d2344"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:27:55.376446Z","signature_b64":"nYhWnJKNw9HL4hfq5HhgZdLWPaw9d1JYz/yacbeEeWbdfZKcCM6WZ5bijs3lmeIi+E9tnn084VZJzpHt+U8RAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44b5c5a25991bbd9adcc007cc41e00d87b58a2d32b7679141ea3310bf1c6a616","last_reissued_at":"2026-05-18T00:27:55.375734Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:27:55.375734Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A path-integral approach to the problem of time","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Martin Bojowald, M. M. Amaral","submitted_at":"2016-01-27T18:10:34Z","abstract_excerpt":"Quantum transition amplitudes are formulated for a model system with local internal time, using path integrals. The amplitudes are shown to be more regular near a turning point of internal time than could be expected based on existing canonical treatments. In particular, a successful transition through a turning point is provided in the model system, together with a new definition of such a transition in general terms. Some of the results rely on a fruitful relation between the problem of time and general Gribov problems."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.07477","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1601.07477","created_at":"2026-05-18T00:27:55.375830+00:00"},{"alias_kind":"arxiv_version","alias_value":"1601.07477v2","created_at":"2026-05-18T00:27:55.375830+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.07477","created_at":"2026-05-18T00:27:55.375830+00:00"},{"alias_kind":"pith_short_12","alias_value":"IS24LISZSG55","created_at":"2026-05-18T12:30:22.444734+00:00"},{"alias_kind":"pith_short_16","alias_value":"IS24LISZSG55TLOM","created_at":"2026-05-18T12:30:22.444734+00:00"},{"alias_kind":"pith_short_8","alias_value":"IS24LISZ","created_at":"2026-05-18T12:30:22.444734+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2507.14131","citing_title":"On the relation between perspective-neutral, algebraic, and effective quantum reference frames","ref_index":125,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/IS24LISZSG55TLOMAB6MIHQA3B","json":"https://pith.science/pith/IS24LISZSG55TLOMAB6MIHQA3B.json","graph_json":"https://pith.science/api/pith-number/IS24LISZSG55TLOMAB6MIHQA3B/graph.json","events_json":"https://pith.science/api/pith-number/IS24LISZSG55TLOMAB6MIHQA3B/events.json","paper":"https://pith.science/paper/IS24LISZ"},"agent_actions":{"view_html":"https://pith.science/pith/IS24LISZSG55TLOMAB6MIHQA3B","download_json":"https://pith.science/pith/IS24LISZSG55TLOMAB6MIHQA3B.json","view_paper":"https://pith.science/paper/IS24LISZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1601.07477&json=true","fetch_graph":"https://pith.science/api/pith-number/IS24LISZSG55TLOMAB6MIHQA3B/graph.json","fetch_events":"https://pith.science/api/pith-number/IS24LISZSG55TLOMAB6MIHQA3B/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IS24LISZSG55TLOMAB6MIHQA3B/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IS24LISZSG55TLOMAB6MIHQA3B/action/storage_attestation","attest_author":"https://pith.science/pith/IS24LISZSG55TLOMAB6MIHQA3B/action/author_attestation","sign_citation":"https://pith.science/pith/IS24LISZSG55TLOMAB6MIHQA3B/action/citation_signature","submit_replication":"https://pith.science/pith/IS24LISZSG55TLOMAB6MIHQA3B/action/replication_record"}},"created_at":"2026-05-18T00:27:55.375830+00:00","updated_at":"2026-05-18T00:27:55.375830+00:00"}