{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:YG42JG4QPQ2Y4VEWMPWCBJKGPH","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":"4bd8463753ef35208ca4a74414ad60d103db8e0b79beb181ebe5aee1f1f193f3","cross_cats_sorted":["hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-02T18:00:01Z","title_canon_sha256":"3aa3589d49a9e5626384ca485895e1be9dd3961de073726854e5f5db3012dc76"},"schema_version":"1.0","source":{"id":"2009.01243","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.01243","created_at":"2026-07-05T01:51:44Z"},{"alias_kind":"arxiv_version","alias_value":"2009.01243v2","created_at":"2026-07-05T01:51:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.01243","created_at":"2026-07-05T01:51:44Z"},{"alias_kind":"pith_short_12","alias_value":"YG42JG4QPQ2Y","created_at":"2026-07-05T01:51:44Z"},{"alias_kind":"pith_short_16","alias_value":"YG42JG4QPQ2Y4VEW","created_at":"2026-07-05T01:51:44Z"},{"alias_kind":"pith_short_8","alias_value":"YG42JG4Q","created_at":"2026-07-05T01:51:44Z"}],"graph_snapshots":[{"event_id":"sha256:64c325f44ede1f147d21873b79da82d8089cf77a128eed092e8a3a1509389856","target":"graph","created_at":"2026-07-05T01:51:44Z","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/2009.01243/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Null infinity in asymptotically flat spacetimes posses a rich mathematical structure; including the BMS group and the Bondi news tensor that allow one to study gravitational radiation rigorously. However, FLRW spacetimes are not asymptotically flat because their stress-energy tensor does not decay sufficiently fast and in fact diverges at null infinity. This class includes matter- and radiation-dominated FLRW spacetimes. We define a class of spacetimes whose structure at null infinity is similar to FLRW spacetimes: the stress-energy tensor is allowed to diverge and the conformal factor is not ","authors_text":"B\\'eatrice Bonga, Kartik Prabhu","cross_cats":["hep-th","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-02T18:00:01Z","title":"BMS-like symmetries in cosmology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.01243","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:deb6c90e1c2a0d63b99b1c0a9d42436548f5a66fadbf5f9b2a1960fb005999f9","target":"record","created_at":"2026-07-05T01:51:44Z","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":"4bd8463753ef35208ca4a74414ad60d103db8e0b79beb181ebe5aee1f1f193f3","cross_cats_sorted":["hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-02T18:00:01Z","title_canon_sha256":"3aa3589d49a9e5626384ca485895e1be9dd3961de073726854e5f5db3012dc76"},"schema_version":"1.0","source":{"id":"2009.01243","kind":"arxiv","version":2}},"canonical_sha256":"c1b9a49b907c358e549663ec20a54679c45bf93ccd5945a35767e09b69b9fb2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c1b9a49b907c358e549663ec20a54679c45bf93ccd5945a35767e09b69b9fb2b","first_computed_at":"2026-07-05T01:51:44.343221Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:51:44.343221Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PDt9R8wU+jgROCVNZXiEc/iSyRov0E4kU3bqU28IKRXdAGiJ3JKhK2CJqZIgCX74ZfpqiuQ0TNl+DRscrqxdAg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:51:44.343710Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.01243","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:deb6c90e1c2a0d63b99b1c0a9d42436548f5a66fadbf5f9b2a1960fb005999f9","sha256:64c325f44ede1f147d21873b79da82d8089cf77a128eed092e8a3a1509389856"],"state_sha256":"beeda61a16238ebf1cb7ee49eb927a8c9c8315ffb381941603ce0c5d592ee0c1"}