{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:SVUSRPQAC3UXSOHO54V26QVYIB","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":"99fb5d448859eeb9322c23043f08671ed30d3c1a7959fbb5ab2c0d797d68b911","cross_cats_sorted":["hep-th"],"license":"","primary_cat":"gr-qc","submitted_at":"2003-05-21T08:31:51Z","title_canon_sha256":"09788be8c83ea4ddf46624d8fd56ea57755e00d1a1ad37846a8136fee2130b1d"},"schema_version":"1.0","source":{"id":"gr-qc/0305079","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0305079","created_at":"2026-07-04T14:25:40Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0305079v2","created_at":"2026-07-04T14:25:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0305079","created_at":"2026-07-04T14:25:40Z"},{"alias_kind":"pith_short_12","alias_value":"SVUSRPQAC3UX","created_at":"2026-07-04T14:25:40Z"},{"alias_kind":"pith_short_16","alias_value":"SVUSRPQAC3UXSOHO","created_at":"2026-07-04T14:25:40Z"},{"alias_kind":"pith_short_8","alias_value":"SVUSRPQA","created_at":"2026-07-04T14:25:40Z"}],"graph_snapshots":[{"event_id":"sha256:9b50099a45d71bac5b2ba2b5156a3c08da50cabaaacaf4fc21e7452ce40ac511","target":"graph","created_at":"2026-07-04T14:25:40Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/gr-qc/0305079/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is commonly accepted that the study of 2+1 dimensional quantum gravity could teach us something about the 3+1 dimensional case. The non-perturbative methods developed in this case share, as basic ingredient, a reformulation of gravity as a gauge field theory. However, these methods suffer many problems. Firstly, this perspective abandon the non-degeneracy of the metric and causality as fundamental principles, hoping to recover them in a certain low-energy limit. Then, it is not clear how these combinatorial techniques could be used in the case where matter fields are added, which are howeve","authors_text":"E. Buffenoir, K. Noui","cross_cats":["hep-th"],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2003-05-21T08:31:51Z","title":"Unfashionable observations about three dimensional gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0305079","kind":"arxiv","version":2},"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":"sha256:3a96e055fa4e092b88a2c827027871530fbc8d88d80201a9bfec3c98ed702adf","target":"record","created_at":"2026-07-04T14:25:40Z","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":"99fb5d448859eeb9322c23043f08671ed30d3c1a7959fbb5ab2c0d797d68b911","cross_cats_sorted":["hep-th"],"license":"","primary_cat":"gr-qc","submitted_at":"2003-05-21T08:31:51Z","title_canon_sha256":"09788be8c83ea4ddf46624d8fd56ea57755e00d1a1ad37846a8136fee2130b1d"},"schema_version":"1.0","source":{"id":"gr-qc/0305079","kind":"arxiv","version":2}},"canonical_sha256":"956928be0016e97938eeef2baf42b8406b37bb3ef565e931a38c939c59bd693f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"956928be0016e97938eeef2baf42b8406b37bb3ef565e931a38c939c59bd693f","first_computed_at":"2026-07-04T14:25:40.711993Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:25:40.711993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JZfE3ibD+ycmNQATt0Z5KBtX8apMY6qti2BfekyA+sk60GSt2t4gop6KbzqTzKIWi9lUux6v3ujhT/Ax1XIVBg==","signature_status":"signed_v1","signed_at":"2026-07-04T14:25:40.712471Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0305079","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a96e055fa4e092b88a2c827027871530fbc8d88d80201a9bfec3c98ed702adf","sha256:9b50099a45d71bac5b2ba2b5156a3c08da50cabaaacaf4fc21e7452ce40ac511"],"state_sha256":"2e927768515d2ab9799503d26e8db989171d8b2c2d0d8bd67d89e40304a51926"}