{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1993:6RMQRTC6HHURE2U7NFQXJAFRUC","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":"c4151fd79ef88838bd40ee6432a199363a6ac4069970d111c54dde7d752276e8","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1993-08-05T17:21:00Z","title_canon_sha256":"5159608ff5e193383597d31e304c84e64cfdc0709cfd92ca4ad388c73e76e70a"},"schema_version":"1.0","source":{"id":"gr-qc/9308002","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/9308002","created_at":"2026-05-18T04:12:01Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9308002v1","created_at":"2026-05-18T04:12:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9308002","created_at":"2026-05-18T04:12:01Z"},{"alias_kind":"pith_short_12","alias_value":"6RMQRTC6HHUR","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"6RMQRTC6HHURE2U7","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"6RMQRTC6","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:3a58968a21038cee26b623cfa5894a578bca16628aa50d1462c9ac095377a223","target":"graph","created_at":"2026-05-18T04:12:01Z","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 quantum hamiltonian which evolves the gravitational field according to time as measured by constant surfaces of a scalar field is defined through a regularization procedure based on the loop representation, and is shown to be finite and diffeomorphism invariant. The problem of constructing this hamiltonian is reduced to a combinatorial and algebraic problem which involves the rearrangements of lines through the vertices of arbitrary graphs. This procedure also provides a construction of the hamiltonian constraint as a finite operator on the space of diffeomorphism invariant states as well as","authors_text":"Carlo Rovelli, Lee Smolin","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"1993-08-05T17:21:00Z","title":"The physical hamiltonian in nonperturbative quantum gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9308002","kind":"arxiv","version":1},"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":"sha256:82376f5b37364545d9ee3139e7c63d88410acec2df619630febba622fd3c4bf7","target":"record","created_at":"2026-05-18T04:12:01Z","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":"c4151fd79ef88838bd40ee6432a199363a6ac4069970d111c54dde7d752276e8","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1993-08-05T17:21:00Z","title_canon_sha256":"5159608ff5e193383597d31e304c84e64cfdc0709cfd92ca4ad388c73e76e70a"},"schema_version":"1.0","source":{"id":"gr-qc/9308002","kind":"arxiv","version":1}},"canonical_sha256":"f45908cc5e39e9126a9f69617480b1a09969b5ec22fdca59fe6de15d0606a557","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f45908cc5e39e9126a9f69617480b1a09969b5ec22fdca59fe6de15d0606a557","first_computed_at":"2026-05-18T04:12:01.020692Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:12:01.020692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SRAMMjBRAQTwQ0aMo3mE0GgTbwpCfSB/7j8V6YxrKq5LQY1ZxZJWbvpNii/IrAit0ARht4+P/tL/8VEzxV7YDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:12:01.021434Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/9308002","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82376f5b37364545d9ee3139e7c63d88410acec2df619630febba622fd3c4bf7","sha256:3a58968a21038cee26b623cfa5894a578bca16628aa50d1462c9ac095377a223"],"state_sha256":"3840c1aa3727210f7376a0082b6bd98326be5b238f475199f5622ee34fb4a04f"}