{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1993:ULTW66KPF2DYU5ATVVP3UYU7VC","short_pith_number":"pith:ULTW66KP","schema_version":"1.0","canonical_sha256":"a2e76f794f2e878a7413ad5fba629fa88006ae5cdd4073c729f86bc2a83195a5","source":{"kind":"arxiv","id":"hep-th/9308155","version":1},"attestation_state":"computed","paper":{"title":"Quantization and the Issue of Time for Various Two-Dimensional Models of Gravity","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Thomas Strobl","submitted_at":"1993-08-31T20:18:08Z","abstract_excerpt":"It is shown that the models of 2D Liouville Gravity, 2D Black Hole- and $R^2$-Gravity are {\\em embedded} in the Katanaev-Volovich model of\n  2D NonEinsteinian Gravity. Different approaches to the formulation of a quantum theory for the above systems are then presented: The Dirac constraints can be solved exactly in the momentum representation, the path integral can be integrated out, and the constraint algebra can be {\\em explicitely} canonically abelianized, thus allowing also for a (superficial) reduced phase space quantization. Non--trivial dynamics are obtained by means of time dependent g"},"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":"hep-th/9308155","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"1993-08-31T20:18:08Z","cross_cats_sorted":[],"title_canon_sha256":"d9c7304605e4b8e780e115d1de7e27d34b4deb3a00cb22f6a23aacc405c2c2f5","abstract_canon_sha256":"e1222668cdcd66827c2d840ce2a3db42923516060589f0c7e40012ec289da184"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:24:16.187772Z","signature_b64":"fT9MuH1vJsxpENW0PfIHGoLp/+EUmfmNXCfhRlFqIV/nyxlMu15v560c8ZJ+yJ3Jwlm7tY0F9tB+2RBuzG+wCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a2e76f794f2e878a7413ad5fba629fa88006ae5cdd4073c729f86bc2a83195a5","last_reissued_at":"2026-05-18T04:24:16.187112Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:24:16.187112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantization and the Issue of Time for Various Two-Dimensional Models of Gravity","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Thomas Strobl","submitted_at":"1993-08-31T20:18:08Z","abstract_excerpt":"It is shown that the models of 2D Liouville Gravity, 2D Black Hole- and $R^2$-Gravity are {\\em embedded} in the Katanaev-Volovich model of\n  2D NonEinsteinian Gravity. Different approaches to the formulation of a quantum theory for the above systems are then presented: The Dirac constraints can be solved exactly in the momentum representation, the path integral can be integrated out, and the constraint algebra can be {\\em explicitely} canonically abelianized, thus allowing also for a (superficial) reduced phase space quantization. Non--trivial dynamics are obtained by means of time dependent g"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/9308155","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":""},"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":"hep-th/9308155","created_at":"2026-05-18T04:24:16.187210+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-th/9308155v1","created_at":"2026-05-18T04:24:16.187210+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/9308155","created_at":"2026-05-18T04:24:16.187210+00:00"},{"alias_kind":"pith_short_12","alias_value":"ULTW66KPF2DY","created_at":"2026-05-18T12:25:47.102015+00:00"},{"alias_kind":"pith_short_16","alias_value":"ULTW66KPF2DYU5AT","created_at":"2026-05-18T12:25:47.102015+00:00"},{"alias_kind":"pith_short_8","alias_value":"ULTW66KP","created_at":"2026-05-18T12:25:47.102015+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/ULTW66KPF2DYU5ATVVP3UYU7VC","json":"https://pith.science/pith/ULTW66KPF2DYU5ATVVP3UYU7VC.json","graph_json":"https://pith.science/api/pith-number/ULTW66KPF2DYU5ATVVP3UYU7VC/graph.json","events_json":"https://pith.science/api/pith-number/ULTW66KPF2DYU5ATVVP3UYU7VC/events.json","paper":"https://pith.science/paper/ULTW66KP"},"agent_actions":{"view_html":"https://pith.science/pith/ULTW66KPF2DYU5ATVVP3UYU7VC","download_json":"https://pith.science/pith/ULTW66KPF2DYU5ATVVP3UYU7VC.json","view_paper":"https://pith.science/paper/ULTW66KP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-th/9308155&json=true","fetch_graph":"https://pith.science/api/pith-number/ULTW66KPF2DYU5ATVVP3UYU7VC/graph.json","fetch_events":"https://pith.science/api/pith-number/ULTW66KPF2DYU5ATVVP3UYU7VC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ULTW66KPF2DYU5ATVVP3UYU7VC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ULTW66KPF2DYU5ATVVP3UYU7VC/action/storage_attestation","attest_author":"https://pith.science/pith/ULTW66KPF2DYU5ATVVP3UYU7VC/action/author_attestation","sign_citation":"https://pith.science/pith/ULTW66KPF2DYU5ATVVP3UYU7VC/action/citation_signature","submit_replication":"https://pith.science/pith/ULTW66KPF2DYU5ATVVP3UYU7VC/action/replication_record"}},"created_at":"2026-05-18T04:24:16.187210+00:00","updated_at":"2026-05-18T04:24:16.187210+00:00"}