{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:6FZXIFIYQQHV6QAWRIT3DXL7AG","short_pith_number":"pith:6FZXIFIY","schema_version":"1.0","canonical_sha256":"f173741518840f5f40168a27b1dd7f0197c8a0a3fea36d047c60a41561a7b2b8","source":{"kind":"arxiv","id":"2403.00730","version":2},"attestation_state":"computed","paper":{"title":"General covariance and boundary symmetry algebras","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Antoine Rignon-Bret, Simone Speziale","submitted_at":"2024-03-01T18:25:54Z","abstract_excerpt":"In general relativity as well as gauge theories, non-trivial symmetries can appear at boundaries. In the presence of radiation some of the symmetries are not Hamiltonian vector fields, hence the definition of charges for the symmetries becomes delicate. It can lead to the problem of field-dependent 2-cocycles in the charge algebra, as opposed to the central extensions allowed in standard classical mechanics. We show that if the Wald-Zoupas prescription is implemented, its covariance requirement guarantees that the algebra of Noether currents is free of field-dependent 2-cocycles, and its stati"},"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":"2403.00730","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2024-03-01T18:25:54Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"9e017cd1a6d56180ab3bf206b66f9d5e7d2d516cfeb761540150f2ff960e31fd","abstract_canon_sha256":"5b81552189a710873bd46afd53d34bb8cc97533b402f58ea651a2f8a62f693f4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:38:32.161799Z","signature_b64":"fG6OMRDXyrOVJ+eHYWAsue5RmckqPIL5t60SsZLKLW5cH476oxQi29cMLfSyVS7pyBBCiAETthkLOAtwR/EQBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f173741518840f5f40168a27b1dd7f0197c8a0a3fea36d047c60a41561a7b2b8","last_reissued_at":"2026-07-05T10:38:32.161378Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:38:32.161378Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"General covariance and boundary symmetry algebras","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Antoine Rignon-Bret, Simone Speziale","submitted_at":"2024-03-01T18:25:54Z","abstract_excerpt":"In general relativity as well as gauge theories, non-trivial symmetries can appear at boundaries. In the presence of radiation some of the symmetries are not Hamiltonian vector fields, hence the definition of charges for the symmetries becomes delicate. It can lead to the problem of field-dependent 2-cocycles in the charge algebra, as opposed to the central extensions allowed in standard classical mechanics. We show that if the Wald-Zoupas prescription is implemented, its covariance requirement guarantees that the algebra of Noether currents is free of field-dependent 2-cocycles, and its stati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.00730","kind":"arxiv","version":2},"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/2403.00730/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":"2403.00730","created_at":"2026-07-05T10:38:32.161431+00:00"},{"alias_kind":"arxiv_version","alias_value":"2403.00730v2","created_at":"2026-07-05T10:38:32.161431+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.00730","created_at":"2026-07-05T10:38:32.161431+00:00"},{"alias_kind":"pith_short_12","alias_value":"6FZXIFIYQQHV","created_at":"2026-07-05T10:38:32.161431+00:00"},{"alias_kind":"pith_short_16","alias_value":"6FZXIFIYQQHV6QAW","created_at":"2026-07-05T10:38:32.161431+00:00"},{"alias_kind":"pith_short_8","alias_value":"6FZXIFIY","created_at":"2026-07-05T10:38:32.161431+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":5,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.02722","citing_title":"Asymptotically-FLRW$_3$ spacetimes","ref_index":91,"is_internal_anchor":false},{"citing_arxiv_id":"2605.13804","citing_title":"An algebra of proper observables at null infinity: Dirac brackets, Memory and Goldstone probes","ref_index":41,"is_internal_anchor":false},{"citing_arxiv_id":"2510.26589","citing_title":"Localization and anomalous reference frames in gravity","ref_index":109,"is_internal_anchor":false},{"citing_arxiv_id":"2605.13804","citing_title":"An algebra of proper observables at null infinity: Dirac brackets, Memory and Goldstone probes","ref_index":36,"is_internal_anchor":false},{"citing_arxiv_id":"2604.02228","citing_title":"Gravitational null rays: Covariant Quantization and the Dressing Time","ref_index":89,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6FZXIFIYQQHV6QAWRIT3DXL7AG","json":"https://pith.science/pith/6FZXIFIYQQHV6QAWRIT3DXL7AG.json","graph_json":"https://pith.science/api/pith-number/6FZXIFIYQQHV6QAWRIT3DXL7AG/graph.json","events_json":"https://pith.science/api/pith-number/6FZXIFIYQQHV6QAWRIT3DXL7AG/events.json","paper":"https://pith.science/paper/6FZXIFIY"},"agent_actions":{"view_html":"https://pith.science/pith/6FZXIFIYQQHV6QAWRIT3DXL7AG","download_json":"https://pith.science/pith/6FZXIFIYQQHV6QAWRIT3DXL7AG.json","view_paper":"https://pith.science/paper/6FZXIFIY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2403.00730&json=true","fetch_graph":"https://pith.science/api/pith-number/6FZXIFIYQQHV6QAWRIT3DXL7AG/graph.json","fetch_events":"https://pith.science/api/pith-number/6FZXIFIYQQHV6QAWRIT3DXL7AG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6FZXIFIYQQHV6QAWRIT3DXL7AG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6FZXIFIYQQHV6QAWRIT3DXL7AG/action/storage_attestation","attest_author":"https://pith.science/pith/6FZXIFIYQQHV6QAWRIT3DXL7AG/action/author_attestation","sign_citation":"https://pith.science/pith/6FZXIFIYQQHV6QAWRIT3DXL7AG/action/citation_signature","submit_replication":"https://pith.science/pith/6FZXIFIYQQHV6QAWRIT3DXL7AG/action/replication_record"}},"created_at":"2026-07-05T10:38:32.161431+00:00","updated_at":"2026-07-05T10:38:32.161431+00:00"}