{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:57OMXW6EOSLFMV655WU7KAJ5LR","short_pith_number":"pith:57OMXW6E","schema_version":"1.0","canonical_sha256":"efdccbdbc474965657ddeda9f5013d5c699f48e9d366fbdb01edfb1c6ed6e492","source":{"kind":"arxiv","id":"gr-qc/9701068","version":1},"attestation_state":"computed","paper":{"title":"The Status of Diffeomorphism Superselection in Euclidean 2+1 Gravity","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Donald Marolf, Jos\\'e Mour\\~ao, Thomas Thiemann","submitted_at":"1997-01-30T19:24:51Z","abstract_excerpt":"This work addresses a specific technical question of relevance to canonical quantization of gravity using the so-called new variables and loop-based techniques of Ashtekar, Rovelli, and Smolin. In particular, certain `superselection laws' that arise in current applications of these techniques to solving the diffeomorphism constraint are considered. Their status is elucidated by studying an analogous system: 2+1 Euclidean gravity. For that system, these superselection laws are shown to be spurious. This, however, is only a technical difficulty. The usual quantum theory may still be obtained fro"},"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/9701068","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"1997-01-30T19:24:51Z","cross_cats_sorted":[],"title_canon_sha256":"e7c7dbd40076414a1fd4ca025166602aefbfd4c8ef5faae7b206f4255d71f34b","abstract_canon_sha256":"1a8bbaa414d1bfa46e8a892a9ea7eaee413ba05a95ff273079c9117784304df0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:04:36.032396Z","signature_b64":"YvjFGMXORkUJE26XDDduym2gSY0ly1BkQ63WaES4trZhlm8DdxxfBxCwkWRccCYzf4T+eG390KGwBTw4+WjpCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"efdccbdbc474965657ddeda9f5013d5c699f48e9d366fbdb01edfb1c6ed6e492","last_reissued_at":"2026-07-04T16:04:36.032057Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:04:36.032057Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Status of Diffeomorphism Superselection in Euclidean 2+1 Gravity","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Donald Marolf, Jos\\'e Mour\\~ao, Thomas Thiemann","submitted_at":"1997-01-30T19:24:51Z","abstract_excerpt":"This work addresses a specific technical question of relevance to canonical quantization of gravity using the so-called new variables and loop-based techniques of Ashtekar, Rovelli, and Smolin. In particular, certain `superselection laws' that arise in current applications of these techniques to solving the diffeomorphism constraint are considered. Their status is elucidated by studying an analogous system: 2+1 Euclidean gravity. For that system, these superselection laws are shown to be spurious. This, however, is only a technical difficulty. The usual quantum theory may still be obtained fro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9701068","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/9701068/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/9701068","created_at":"2026-07-04T16:04:36.032116+00:00"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9701068v1","created_at":"2026-07-04T16:04:36.032116+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9701068","created_at":"2026-07-04T16:04:36.032116+00:00"},{"alias_kind":"pith_short_12","alias_value":"57OMXW6EOSLF","created_at":"2026-07-04T16:04:36.032116+00:00"},{"alias_kind":"pith_short_16","alias_value":"57OMXW6EOSLFMV65","created_at":"2026-07-04T16:04:36.032116+00:00"},{"alias_kind":"pith_short_8","alias_value":"57OMXW6E","created_at":"2026-07-04T16:04:36.032116+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/57OMXW6EOSLFMV655WU7KAJ5LR","json":"https://pith.science/pith/57OMXW6EOSLFMV655WU7KAJ5LR.json","graph_json":"https://pith.science/api/pith-number/57OMXW6EOSLFMV655WU7KAJ5LR/graph.json","events_json":"https://pith.science/api/pith-number/57OMXW6EOSLFMV655WU7KAJ5LR/events.json","paper":"https://pith.science/paper/57OMXW6E"},"agent_actions":{"view_html":"https://pith.science/pith/57OMXW6EOSLFMV655WU7KAJ5LR","download_json":"https://pith.science/pith/57OMXW6EOSLFMV655WU7KAJ5LR.json","view_paper":"https://pith.science/paper/57OMXW6E","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=gr-qc/9701068&json=true","fetch_graph":"https://pith.science/api/pith-number/57OMXW6EOSLFMV655WU7KAJ5LR/graph.json","fetch_events":"https://pith.science/api/pith-number/57OMXW6EOSLFMV655WU7KAJ5LR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/57OMXW6EOSLFMV655WU7KAJ5LR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/57OMXW6EOSLFMV655WU7KAJ5LR/action/storage_attestation","attest_author":"https://pith.science/pith/57OMXW6EOSLFMV655WU7KAJ5LR/action/author_attestation","sign_citation":"https://pith.science/pith/57OMXW6EOSLFMV655WU7KAJ5LR/action/citation_signature","submit_replication":"https://pith.science/pith/57OMXW6EOSLFMV655WU7KAJ5LR/action/replication_record"}},"created_at":"2026-07-04T16:04:36.032116+00:00","updated_at":"2026-07-04T16:04:36.032116+00:00"}