{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:C6FZ2MZO5MWXA7YA2R6VP5BIRA","short_pith_number":"pith:C6FZ2MZO","canonical_record":{"source":{"id":"2306.08029","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-06-13T18:00:01Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"679fcbedfc1b019f694bbc51dbff95ad2634b7d8d3c4958c7e4111021d2b40d9","abstract_canon_sha256":"c2915dc3d73384e5b6aab673e979cbb2bea34692ed9593f1c6563fd274e7786a"},"schema_version":"1.0"},"canonical_sha256":"178b9d332eeb2d707f00d47d57f4288822aafd64a59181c108bd75954f6443bb","source":{"kind":"arxiv","id":"2306.08029","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.08029","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"arxiv_version","alias_value":"2306.08029v2","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.08029","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"pith_short_12","alias_value":"C6FZ2MZO5MWX","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"pith_short_16","alias_value":"C6FZ2MZO5MWXA7YA","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"pith_short_8","alias_value":"C6FZ2MZO","created_at":"2026-07-05T06:48:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:C6FZ2MZO5MWXA7YA2R6VP5BIRA","target":"record","payload":{"canonical_record":{"source":{"id":"2306.08029","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-06-13T18:00:01Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"679fcbedfc1b019f694bbc51dbff95ad2634b7d8d3c4958c7e4111021d2b40d9","abstract_canon_sha256":"c2915dc3d73384e5b6aab673e979cbb2bea34692ed9593f1c6563fd274e7786a"},"schema_version":"1.0"},"canonical_sha256":"178b9d332eeb2d707f00d47d57f4288822aafd64a59181c108bd75954f6443bb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:48:49.687372Z","signature_b64":"FzAtCzVPq6f4P08O0A1SkgEA3+CaEd6FCTiS2h7ipQlR5y4Q4an1CFLRdp2tC2Zs5siRdR9nM7ulKSNMjwIqAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"178b9d332eeb2d707f00d47d57f4288822aafd64a59181c108bd75954f6443bb","last_reissued_at":"2026-07-05T06:48:49.686948Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:48:49.686948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2306.08029","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:48:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lGWnl0cpe09pIUDqbBya3VHTPkoklhX9zLlunf/qn9BnCubp59h6vjA5ng9sTVkCey5yNBfI+Nsjf30vxzJbCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T09:49:25.262601Z"},"content_sha256":"c6f232ead60d9bf02abc4a0dd877a32c9a541982ac10269b0ec45b237ed0c165","schema_version":"1.0","event_id":"sha256:c6f232ead60d9bf02abc4a0dd877a32c9a541982ac10269b0ec45b237ed0c165"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:C6FZ2MZO5MWXA7YA2R6VP5BIRA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gravitational radiation with $\\Lambda>0$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Alfredo P\\'erez, B\\'eatrice Bonga, Claudio Bunster","submitted_at":"2023-06-13T18:00:01Z","abstract_excerpt":"We study gravitational radiation for a positive value of the cosmological constant $\\Lambda$. We rely on two battle-tested procedures: (i) We start from the same null coordinate system used by Bondi and Sachs for $\\Lambda = 0$, but, introduce boundary conditions adapted to allow radiation when $\\Lambda>0$. (ii) We determine the asymptotic symmetries by studying, \\`a la Regge-Teitelboim, the surface integrals generated in the action by these boundary conditions. A crucial difference with the $\\Lambda=0$ case is that the wave field does not vanish at large distances, but is of the same order as "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.08029","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/2306.08029/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:48:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EiNdeFbQ7ifWFokxVpXazHzG2T2htJpo1KFBMOi1RIAunmz1/9mzK0iJGdVu1YrlNWtKwX9A0zwXFBxhsnfmDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T09:49:25.263101Z"},"content_sha256":"d04311abfbb4c614952610afffc38178d0b687024e80de8132c81db574f0b49d","schema_version":"1.0","event_id":"sha256:d04311abfbb4c614952610afffc38178d0b687024e80de8132c81db574f0b49d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C6FZ2MZO5MWXA7YA2R6VP5BIRA/bundle.json","state_url":"https://pith.science/pith/C6FZ2MZO5MWXA7YA2R6VP5BIRA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C6FZ2MZO5MWXA7YA2R6VP5BIRA/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-13T09:49:25Z","links":{"resolver":"https://pith.science/pith/C6FZ2MZO5MWXA7YA2R6VP5BIRA","bundle":"https://pith.science/pith/C6FZ2MZO5MWXA7YA2R6VP5BIRA/bundle.json","state":"https://pith.science/pith/C6FZ2MZO5MWXA7YA2R6VP5BIRA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C6FZ2MZO5MWXA7YA2R6VP5BIRA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:C6FZ2MZO5MWXA7YA2R6VP5BIRA","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":"c2915dc3d73384e5b6aab673e979cbb2bea34692ed9593f1c6563fd274e7786a","cross_cats_sorted":["hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-06-13T18:00:01Z","title_canon_sha256":"679fcbedfc1b019f694bbc51dbff95ad2634b7d8d3c4958c7e4111021d2b40d9"},"schema_version":"1.0","source":{"id":"2306.08029","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.08029","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"arxiv_version","alias_value":"2306.08029v2","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.08029","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"pith_short_12","alias_value":"C6FZ2MZO5MWX","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"pith_short_16","alias_value":"C6FZ2MZO5MWXA7YA","created_at":"2026-07-05T06:48:49Z"},{"alias_kind":"pith_short_8","alias_value":"C6FZ2MZO","created_at":"2026-07-05T06:48:49Z"}],"graph_snapshots":[{"event_id":"sha256:d04311abfbb4c614952610afffc38178d0b687024e80de8132c81db574f0b49d","target":"graph","created_at":"2026-07-05T06:48:49Z","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/2306.08029/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study gravitational radiation for a positive value of the cosmological constant $\\Lambda$. We rely on two battle-tested procedures: (i) We start from the same null coordinate system used by Bondi and Sachs for $\\Lambda = 0$, but, introduce boundary conditions adapted to allow radiation when $\\Lambda>0$. (ii) We determine the asymptotic symmetries by studying, \\`a la Regge-Teitelboim, the surface integrals generated in the action by these boundary conditions. A crucial difference with the $\\Lambda=0$ case is that the wave field does not vanish at large distances, but is of the same order as ","authors_text":"Alfredo P\\'erez, B\\'eatrice Bonga, Claudio Bunster","cross_cats":["hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-06-13T18:00:01Z","title":"Gravitational radiation with $\\Lambda>0$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.08029","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:c6f232ead60d9bf02abc4a0dd877a32c9a541982ac10269b0ec45b237ed0c165","target":"record","created_at":"2026-07-05T06:48:49Z","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":"c2915dc3d73384e5b6aab673e979cbb2bea34692ed9593f1c6563fd274e7786a","cross_cats_sorted":["hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-06-13T18:00:01Z","title_canon_sha256":"679fcbedfc1b019f694bbc51dbff95ad2634b7d8d3c4958c7e4111021d2b40d9"},"schema_version":"1.0","source":{"id":"2306.08029","kind":"arxiv","version":2}},"canonical_sha256":"178b9d332eeb2d707f00d47d57f4288822aafd64a59181c108bd75954f6443bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"178b9d332eeb2d707f00d47d57f4288822aafd64a59181c108bd75954f6443bb","first_computed_at":"2026-07-05T06:48:49.686948Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:48:49.686948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FzAtCzVPq6f4P08O0A1SkgEA3+CaEd6FCTiS2h7ipQlR5y4Q4an1CFLRdp2tC2Zs5siRdR9nM7ulKSNMjwIqAA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:48:49.687372Z","signed_message":"canonical_sha256_bytes"},"source_id":"2306.08029","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6f232ead60d9bf02abc4a0dd877a32c9a541982ac10269b0ec45b237ed0c165","sha256:d04311abfbb4c614952610afffc38178d0b687024e80de8132c81db574f0b49d"],"state_sha256":"9e4208db2aceebbb00e1c27e6934befad72e4931114ff2885349cdd305226ae7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T9cRXnDYxYJGCZjfhlkBTJ+g/8NZlCwiuv+Z/Y/ZUT1BpsazFwURDzTdcaEdkd23E0n+TWpUoAEvOgxn2opkDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T09:49:25.268354Z","bundle_sha256":"d1915f3bb46e2ca5543537ecceca8ceb613644f2dd8dae23acbb411d79b1d18f"}}