{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:FFJX2KZME3CUW6ZLSNMZWZKVYS","short_pith_number":"pith:FFJX2KZM","schema_version":"1.0","canonical_sha256":"29537d2b2c26c54b7b2b93599b6555c49c36b4673aafe0761f1a38b9db06b5e5","source":{"kind":"arxiv","id":"2405.01526","version":2},"attestation_state":"computed","paper":{"title":"Center-less BMS charge algebra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Antoine Rignon-Bret, Simone Speziale","submitted_at":"2024-05-02T17:56:22Z","abstract_excerpt":"We show that when the Wald-Zoupas prescription is implemented, the resulting charges realize the BMS symmetry algebra without any 2-cocycle nor central extension, at any cut of future null infinity. We refine the covariance prescription for application to the charge aspects, and introduce a new aspect for Geroch's super-momentum with better covariance properties. For the extended BMS symmetry with singular conformal Killing vectors we find that a Wald-Zoupas symplectic potential exists, if one is willing to modify the symplectic structure by a corner term. The resulting algebra of Noether curr"},"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":"2405.01526","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2024-05-02T17:56:22Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"c5c0cd579f04daecb2c47e19174da91a9a5effe7a090e11b487621266a50dda2","abstract_canon_sha256":"be5f3c7dcb2bf247934057d1040ef9f5457a682d61344323b014cf81dd2f2a50"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:44:38.109391Z","signature_b64":"U5tkMRXTUrFK2bgWOml9Kit7hZ0mZ9Tm890Y2hwnFuVlD00iRCAbdP6V6HEFHEm7du+uAEWN1atJxiCTTC6ODg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29537d2b2c26c54b7b2b93599b6555c49c36b4673aafe0761f1a38b9db06b5e5","last_reissued_at":"2026-07-05T08:44:38.108911Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:44:38.108911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Center-less BMS charge algebra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Antoine Rignon-Bret, Simone Speziale","submitted_at":"2024-05-02T17:56:22Z","abstract_excerpt":"We show that when the Wald-Zoupas prescription is implemented, the resulting charges realize the BMS symmetry algebra without any 2-cocycle nor central extension, at any cut of future null infinity. We refine the covariance prescription for application to the charge aspects, and introduce a new aspect for Geroch's super-momentum with better covariance properties. For the extended BMS symmetry with singular conformal Killing vectors we find that a Wald-Zoupas symplectic potential exists, if one is willing to modify the symplectic structure by a corner term. The resulting algebra of Noether curr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.01526","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/2405.01526/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":"2405.01526","created_at":"2026-07-05T08:44:38.108976+00:00"},{"alias_kind":"arxiv_version","alias_value":"2405.01526v2","created_at":"2026-07-05T08:44:38.108976+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.01526","created_at":"2026-07-05T08:44:38.108976+00:00"},{"alias_kind":"pith_short_12","alias_value":"FFJX2KZME3CU","created_at":"2026-07-05T08:44:38.108976+00:00"},{"alias_kind":"pith_short_16","alias_value":"FFJX2KZME3CUW6ZL","created_at":"2026-07-05T08:44:38.108976+00:00"},{"alias_kind":"pith_short_8","alias_value":"FFJX2KZM","created_at":"2026-07-05T08:44:38.108976+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":6,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.02722","citing_title":"Asymptotically-FLRW$_3$ spacetimes","ref_index":92,"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":34,"is_internal_anchor":false},{"citing_arxiv_id":"2501.07136","citing_title":"On symmetries of gravitational on-shell boundary action at null infinity","ref_index":52,"is_internal_anchor":false},{"citing_arxiv_id":"2508.01446","citing_title":"Radiation in Fluid/Gravity and the Flat Limit","ref_index":83,"is_internal_anchor":false},{"citing_arxiv_id":"2603.08705","citing_title":"A proof of conservation laws in gravitational scattering: tails and breaking of peeling","ref_index":45,"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":30,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/FFJX2KZME3CUW6ZLSNMZWZKVYS","json":"https://pith.science/pith/FFJX2KZME3CUW6ZLSNMZWZKVYS.json","graph_json":"https://pith.science/api/pith-number/FFJX2KZME3CUW6ZLSNMZWZKVYS/graph.json","events_json":"https://pith.science/api/pith-number/FFJX2KZME3CUW6ZLSNMZWZKVYS/events.json","paper":"https://pith.science/paper/FFJX2KZM"},"agent_actions":{"view_html":"https://pith.science/pith/FFJX2KZME3CUW6ZLSNMZWZKVYS","download_json":"https://pith.science/pith/FFJX2KZME3CUW6ZLSNMZWZKVYS.json","view_paper":"https://pith.science/paper/FFJX2KZM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2405.01526&json=true","fetch_graph":"https://pith.science/api/pith-number/FFJX2KZME3CUW6ZLSNMZWZKVYS/graph.json","fetch_events":"https://pith.science/api/pith-number/FFJX2KZME3CUW6ZLSNMZWZKVYS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FFJX2KZME3CUW6ZLSNMZWZKVYS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FFJX2KZME3CUW6ZLSNMZWZKVYS/action/storage_attestation","attest_author":"https://pith.science/pith/FFJX2KZME3CUW6ZLSNMZWZKVYS/action/author_attestation","sign_citation":"https://pith.science/pith/FFJX2KZME3CUW6ZLSNMZWZKVYS/action/citation_signature","submit_replication":"https://pith.science/pith/FFJX2KZME3CUW6ZLSNMZWZKVYS/action/replication_record"}},"created_at":"2026-07-05T08:44:38.108976+00:00","updated_at":"2026-07-05T08:44:38.108976+00:00"}