{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:BRKZGPYRCQVLFBMKMXYOSR2YGV","short_pith_number":"pith:BRKZGPYR","canonical_record":{"source":{"id":"2608.10593","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-08-11T07:19:18Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"8f94b8b7012eef79c447a6d973330f78a9b94459468dfe77bb703f01ac379b85","abstract_canon_sha256":"2f17ac411c01d278f6638b83f0581ebe36ae3d6058396b3725367d1b5f9f9325"},"schema_version":"1.0"},"canonical_sha256":"0c55933f11142ab2858a65f0e94758354dd1ef059fc0a742bb020c5185ee49b8","source":{"kind":"arxiv","id":"2608.10593","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.10593","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"arxiv_version","alias_value":"2608.10593v1","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.10593","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"pith_short_12","alias_value":"BRKZGPYRCQVL","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"pith_short_16","alias_value":"BRKZGPYRCQVLFBMK","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"pith_short_8","alias_value":"BRKZGPYR","created_at":"2026-08-12T01:22:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:BRKZGPYRCQVLFBMKMXYOSR2YGV","target":"record","payload":{"canonical_record":{"source":{"id":"2608.10593","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-08-11T07:19:18Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"8f94b8b7012eef79c447a6d973330f78a9b94459468dfe77bb703f01ac379b85","abstract_canon_sha256":"2f17ac411c01d278f6638b83f0581ebe36ae3d6058396b3725367d1b5f9f9325"},"schema_version":"1.0"},"canonical_sha256":"0c55933f11142ab2858a65f0e94758354dd1ef059fc0a742bb020c5185ee49b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-12T01:22:49.748999Z","signature_b64":"cKTEiStFSEUbaWRQUkl9NCgossBN6YGpf8TdtjZW57+3RRdU21kuhmoYnpMfNDBlzo1LGK/a+mRR5TRd8zXGDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0c55933f11142ab2858a65f0e94758354dd1ef059fc0a742bb020c5185ee49b8","last_reissued_at":"2026-08-12T01:22:49.747281Z","signature_status":"signed_v1","first_computed_at":"2026-08-12T01:22:49.747281Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.10593","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-12T01:22:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IlF2Qt8F3m3q226SHm6GJoz7egQRCkSqEN1bIyrQDZHrRvxnFgFzewYCYtzVgkqnPPvSlC2laSRZuaH1PlmcAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T05:35:16.051580Z"},"content_sha256":"ae1d01bf1f5538cbfeb1206dbbaff4be8ff7f70f1c434c0536caae011d6ef553","schema_version":"1.0","event_id":"sha256:ae1d01bf1f5538cbfeb1206dbbaff4be8ff7f70f1c434c0536caae011d6ef553"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:BRKZGPYRCQVLFBMKMXYOSR2YGV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Octupolar Gravitational Radiation in de Sitter Spacetime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Amitabh Virmani, Harsh, Omkar Shetye","submitted_at":"2026-08-11T07:19:18Z","abstract_excerpt":"We derive the gravitational radiation generated by a localised matter source in de Sitter spacetime at octupolar order in the multipolar expansion, working in generalised harmonic gauge in the future Poincar\\'e patch. The scalar, vector, and tensor perturbation equations are solved explicitly, taking into account the cosmological tail. This constitutes the first extension of the de Sitter multipolar expansion beyond quadrupolar order. A key technical ingredient is a universal multipole moment differentiation identity, which unifies the relations between multipole moments into a single recursiv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.10593","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.10593/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":"2026-08-12T01:22:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XoDW+nQB4ftd9oUfn9KuG2XNe1Py/ImmyXPAviCpjJbNcIELYFsOk5l78Xr0WCTtheyptuCRNVSEA5rp0jekBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T05:35:16.052597Z"},"content_sha256":"7b78a0e374645421fb53630d2182b0f512b21b9622c9c0249f07013a58b48c83","schema_version":"1.0","event_id":"sha256:7b78a0e374645421fb53630d2182b0f512b21b9622c9c0249f07013a58b48c83"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BRKZGPYRCQVLFBMKMXYOSR2YGV/bundle.json","state_url":"https://pith.science/pith/BRKZGPYRCQVLFBMKMXYOSR2YGV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BRKZGPYRCQVLFBMKMXYOSR2YGV/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":"2026-08-13T05:35:16Z","links":{"resolver":"https://pith.science/pith/BRKZGPYRCQVLFBMKMXYOSR2YGV","bundle":"https://pith.science/pith/BRKZGPYRCQVLFBMKMXYOSR2YGV/bundle.json","state":"https://pith.science/pith/BRKZGPYRCQVLFBMKMXYOSR2YGV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BRKZGPYRCQVLFBMKMXYOSR2YGV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:BRKZGPYRCQVLFBMKMXYOSR2YGV","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":"2f17ac411c01d278f6638b83f0581ebe36ae3d6058396b3725367d1b5f9f9325","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-08-11T07:19:18Z","title_canon_sha256":"8f94b8b7012eef79c447a6d973330f78a9b94459468dfe77bb703f01ac379b85"},"schema_version":"1.0","source":{"id":"2608.10593","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.10593","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"arxiv_version","alias_value":"2608.10593v1","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.10593","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"pith_short_12","alias_value":"BRKZGPYRCQVL","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"pith_short_16","alias_value":"BRKZGPYRCQVLFBMK","created_at":"2026-08-12T01:22:49Z"},{"alias_kind":"pith_short_8","alias_value":"BRKZGPYR","created_at":"2026-08-12T01:22:49Z"}],"graph_snapshots":[{"event_id":"sha256:7b78a0e374645421fb53630d2182b0f512b21b9622c9c0249f07013a58b48c83","target":"graph","created_at":"2026-08-12T01:22:49Z","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/2608.10593/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We derive the gravitational radiation generated by a localised matter source in de Sitter spacetime at octupolar order in the multipolar expansion, working in generalised harmonic gauge in the future Poincar\\'e patch. The scalar, vector, and tensor perturbation equations are solved explicitly, taking into account the cosmological tail. This constitutes the first extension of the de Sitter multipolar expansion beyond quadrupolar order. A key technical ingredient is a universal multipole moment differentiation identity, which unifies the relations between multipole moments into a single recursiv","authors_text":"Amitabh Virmani, Harsh, Omkar Shetye","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-08-11T07:19:18Z","title":"Octupolar Gravitational Radiation in de Sitter Spacetime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.10593","kind":"arxiv","version":1},"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:ae1d01bf1f5538cbfeb1206dbbaff4be8ff7f70f1c434c0536caae011d6ef553","target":"record","created_at":"2026-08-12T01:22:49Z","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":"2f17ac411c01d278f6638b83f0581ebe36ae3d6058396b3725367d1b5f9f9325","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-08-11T07:19:18Z","title_canon_sha256":"8f94b8b7012eef79c447a6d973330f78a9b94459468dfe77bb703f01ac379b85"},"schema_version":"1.0","source":{"id":"2608.10593","kind":"arxiv","version":1}},"canonical_sha256":"0c55933f11142ab2858a65f0e94758354dd1ef059fc0a742bb020c5185ee49b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c55933f11142ab2858a65f0e94758354dd1ef059fc0a742bb020c5185ee49b8","first_computed_at":"2026-08-12T01:22:49.747281Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-12T01:22:49.747281Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cKTEiStFSEUbaWRQUkl9NCgossBN6YGpf8TdtjZW57+3RRdU21kuhmoYnpMfNDBlzo1LGK/a+mRR5TRd8zXGDQ==","signature_status":"signed_v1","signed_at":"2026-08-12T01:22:49.748999Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.10593","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ae1d01bf1f5538cbfeb1206dbbaff4be8ff7f70f1c434c0536caae011d6ef553","sha256:7b78a0e374645421fb53630d2182b0f512b21b9622c9c0249f07013a58b48c83"],"state_sha256":"614e42b3ec2e74213384fc65a9e13942a9f7b2d997c5a154be5595fdbd09adc2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jfCNi+I9cJpIFn0EtH7HLPr1IhlWp14ubRHG5aEWpg9fWEhNxkjrPOQhUBVI+4hFUSWR43OdyhGQuQtFg4b4DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T05:35:16.059184Z","bundle_sha256":"dcbfbbd46ef3e673a247c5304f92c9341764fac37759b372528bc94f0b311a98"}}