{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:2ZIUUSB2AA3YUDC3XLPO47BQKA","short_pith_number":"pith:2ZIUUSB2","schema_version":"1.0","canonical_sha256":"d6514a483a00378a0c5bbadeee7c30501803e6ca8318332843ff3940eac1bf55","source":{"kind":"arxiv","id":"gr-qc/9706002","version":1},"attestation_state":"computed","paper":{"title":"Forks in the Road, on the Way to Quantum Gravity","license":"","headline":"","cross_cats":["hep-th","quant-ph"],"primary_cat":"gr-qc","authors_text":"Rafael D. Sorkin (ICN-UNAM, Syracuse University)","submitted_at":"1997-06-01T13:55:19Z","abstract_excerpt":"In seeking to arrive at a theory of ``quantum gravity'', one faces several choices among alternative approaches. I list some of these ``forks in the road'' and offer reasons for taking one alternative over the other. In particular, I advocate the following: the sum-over-histories framework for quantum dynamics over the ``observable and state-vector'' framework; relative probabilities over absolute ones; spacetime over space as the gravitational ``substance'' (4 over 3+1); a Lorentzian metric over a Riemannian (``Euclidean'') one; a dynamical topology over an absolute one; degenerate metrics ov"},"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":"gr-qc/9706002","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"1997-06-01T13:55:19Z","cross_cats_sorted":["hep-th","quant-ph"],"title_canon_sha256":"5334a3ac7c027e8e013a7960debe2d74186dd18e8fa2124114d77492f1df0c68","abstract_canon_sha256":"b5114ead5741d0f76ba1c9d6cc463e1a62b58be7b06bdf014fce5b21ca4097e5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:18:07.244246Z","signature_b64":"RuG7NdoiwN+Mm8MA92Yp1Hf4rwm9A9qhtxiM3bNQi4IUxlsgF4zQJGbRcO+44BJ5SvcRMp08PTJnWBIr/WwSBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d6514a483a00378a0c5bbadeee7c30501803e6ca8318332843ff3940eac1bf55","last_reissued_at":"2026-07-04T15:18:07.243769Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:18:07.243769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Forks in the Road, on the Way to Quantum Gravity","license":"","headline":"","cross_cats":["hep-th","quant-ph"],"primary_cat":"gr-qc","authors_text":"Rafael D. Sorkin (ICN-UNAM, Syracuse University)","submitted_at":"1997-06-01T13:55:19Z","abstract_excerpt":"In seeking to arrive at a theory of ``quantum gravity'', one faces several choices among alternative approaches. I list some of these ``forks in the road'' and offer reasons for taking one alternative over the other. In particular, I advocate the following: the sum-over-histories framework for quantum dynamics over the ``observable and state-vector'' framework; relative probabilities over absolute ones; spacetime over space as the gravitational ``substance'' (4 over 3+1); a Lorentzian metric over a Riemannian (``Euclidean'') one; a dynamical topology over an absolute one; degenerate metrics ov"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9706002","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/gr-qc/9706002/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/9706002","created_at":"2026-07-04T15:18:07.243828+00:00"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9706002v1","created_at":"2026-07-04T15:18:07.243828+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9706002","created_at":"2026-07-04T15:18:07.243828+00:00"},{"alias_kind":"pith_short_12","alias_value":"2ZIUUSB2AA3Y","created_at":"2026-07-04T15:18:07.243828+00:00"},{"alias_kind":"pith_short_16","alias_value":"2ZIUUSB2AA3YUDC3","created_at":"2026-07-04T15:18:07.243828+00:00"},{"alias_kind":"pith_short_8","alias_value":"2ZIUUSB2","created_at":"2026-07-04T15:18:07.243828+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/2ZIUUSB2AA3YUDC3XLPO47BQKA","json":"https://pith.science/pith/2ZIUUSB2AA3YUDC3XLPO47BQKA.json","graph_json":"https://pith.science/api/pith-number/2ZIUUSB2AA3YUDC3XLPO47BQKA/graph.json","events_json":"https://pith.science/api/pith-number/2ZIUUSB2AA3YUDC3XLPO47BQKA/events.json","paper":"https://pith.science/paper/2ZIUUSB2"},"agent_actions":{"view_html":"https://pith.science/pith/2ZIUUSB2AA3YUDC3XLPO47BQKA","download_json":"https://pith.science/pith/2ZIUUSB2AA3YUDC3XLPO47BQKA.json","view_paper":"https://pith.science/paper/2ZIUUSB2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=gr-qc/9706002&json=true","fetch_graph":"https://pith.science/api/pith-number/2ZIUUSB2AA3YUDC3XLPO47BQKA/graph.json","fetch_events":"https://pith.science/api/pith-number/2ZIUUSB2AA3YUDC3XLPO47BQKA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2ZIUUSB2AA3YUDC3XLPO47BQKA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2ZIUUSB2AA3YUDC3XLPO47BQKA/action/storage_attestation","attest_author":"https://pith.science/pith/2ZIUUSB2AA3YUDC3XLPO47BQKA/action/author_attestation","sign_citation":"https://pith.science/pith/2ZIUUSB2AA3YUDC3XLPO47BQKA/action/citation_signature","submit_replication":"https://pith.science/pith/2ZIUUSB2AA3YUDC3XLPO47BQKA/action/replication_record"}},"created_at":"2026-07-04T15:18:07.243828+00:00","updated_at":"2026-07-04T15:18:07.243828+00:00"}