{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:G3AMSGNRAFUIMQCDPFL3NQHBCM","short_pith_number":"pith:G3AMSGNR","canonical_record":{"source":{"id":"1808.06023","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-18T00:04:39Z","cross_cats_sorted":[],"title_canon_sha256":"32f34e63dba39c79770b6454d07f4ac61f266d1f870b604d8d14d89812db2a05","abstract_canon_sha256":"e13b65b7012ae0fb94e0f6149d593bd7f59efdd37e56ef1b599ca090ee4413df"},"schema_version":"1.0"},"canonical_sha256":"36c0c919b101688640437957b6c0e113366ec63efa29998cb706d0332e1f5ed8","source":{"kind":"arxiv","id":"1808.06023","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06023","created_at":"2026-05-18T00:07:05Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06023v1","created_at":"2026-05-18T00:07:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06023","created_at":"2026-05-18T00:07:05Z"},{"alias_kind":"pith_short_12","alias_value":"G3AMSGNRAFUI","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G3AMSGNRAFUIMQCD","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G3AMSGNR","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:G3AMSGNRAFUIMQCDPFL3NQHBCM","target":"record","payload":{"canonical_record":{"source":{"id":"1808.06023","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-18T00:04:39Z","cross_cats_sorted":[],"title_canon_sha256":"32f34e63dba39c79770b6454d07f4ac61f266d1f870b604d8d14d89812db2a05","abstract_canon_sha256":"e13b65b7012ae0fb94e0f6149d593bd7f59efdd37e56ef1b599ca090ee4413df"},"schema_version":"1.0"},"canonical_sha256":"36c0c919b101688640437957b6c0e113366ec63efa29998cb706d0332e1f5ed8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:05.407506Z","signature_b64":"oMdmENGXP4y90bH3A523irihF3iV8AbnefX+QPOdafB0UR79QWjQSbNcxgKGZynrHDc7RPjLt2tZrnK/seXsBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"36c0c919b101688640437957b6c0e113366ec63efa29998cb706d0332e1f5ed8","last_reissued_at":"2026-05-18T00:07:05.406797Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:05.406797Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.06023","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":"2026-05-18T00:07:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V8v0ooYfG9Cqi9UV7tgauIXEPab75sT2QvHhcN/Jg/v1u5W3DIjAOWdPypDFOL7x+kfKGoFLoIVZU2WhsfU+CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:08:10.163990Z"},"content_sha256":"87afd7d6d0d08f56a342a392c8e8000461b5e90424b152eb74d255487d29dd46","schema_version":"1.0","event_id":"sha256:87afd7d6d0d08f56a342a392c8e8000461b5e90424b152eb74d255487d29dd46"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:G3AMSGNRAFUIMQCDPFL3NQHBCM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Circumbinary discs around merging stellar-mass black holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Andrew King, Chris Nixon, Fu-Guo Xie, Rebecca G. Martin","submitted_at":"2018-08-18T00:04:39Z","abstract_excerpt":"A circumbinary disc around a pair of merging stellar-mass black holes may be shocked and heated during the recoil of the merged hole, causing a near-simultaneous electromagnetic counterpart to the gravitational wave event. The shocks occur around the recoil radius, where the disc orbital velocity is equal to the recoil velocity. The amount of mass present near this radius at the time of the merger is critical in determining how much radiation is released. We explore the evolution of a circumbinary disc in two limits. First, we consider an accretion disc that feels no torque from the binary. Th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06023","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":""},"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":"2026-05-18T00:07:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/htyVlKf+v9EuiMOF55KzUjFvsqeYqttr1rHdpyUL3TePTj8gSpdnAD4MeKH6ZpoLlId2YBWg5PL0FYP4JUmAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:08:10.164683Z"},"content_sha256":"c924cfcf3583caaeed9fce33ae2e73da2c49846e89c16ee34dd12c6a3e9323a5","schema_version":"1.0","event_id":"sha256:c924cfcf3583caaeed9fce33ae2e73da2c49846e89c16ee34dd12c6a3e9323a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G3AMSGNRAFUIMQCDPFL3NQHBCM/bundle.json","state_url":"https://pith.science/pith/G3AMSGNRAFUIMQCDPFL3NQHBCM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G3AMSGNRAFUIMQCDPFL3NQHBCM/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":"2026-05-27T15:08:10Z","links":{"resolver":"https://pith.science/pith/G3AMSGNRAFUIMQCDPFL3NQHBCM","bundle":"https://pith.science/pith/G3AMSGNRAFUIMQCDPFL3NQHBCM/bundle.json","state":"https://pith.science/pith/G3AMSGNRAFUIMQCDPFL3NQHBCM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G3AMSGNRAFUIMQCDPFL3NQHBCM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:G3AMSGNRAFUIMQCDPFL3NQHBCM","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":"e13b65b7012ae0fb94e0f6149d593bd7f59efdd37e56ef1b599ca090ee4413df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-18T00:04:39Z","title_canon_sha256":"32f34e63dba39c79770b6454d07f4ac61f266d1f870b604d8d14d89812db2a05"},"schema_version":"1.0","source":{"id":"1808.06023","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06023","created_at":"2026-05-18T00:07:05Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06023v1","created_at":"2026-05-18T00:07:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06023","created_at":"2026-05-18T00:07:05Z"},{"alias_kind":"pith_short_12","alias_value":"G3AMSGNRAFUI","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G3AMSGNRAFUIMQCD","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G3AMSGNR","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:c924cfcf3583caaeed9fce33ae2e73da2c49846e89c16ee34dd12c6a3e9323a5","target":"graph","created_at":"2026-05-18T00:07:05Z","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"},"paper":{"abstract_excerpt":"A circumbinary disc around a pair of merging stellar-mass black holes may be shocked and heated during the recoil of the merged hole, causing a near-simultaneous electromagnetic counterpart to the gravitational wave event. The shocks occur around the recoil radius, where the disc orbital velocity is equal to the recoil velocity. The amount of mass present near this radius at the time of the merger is critical in determining how much radiation is released. We explore the evolution of a circumbinary disc in two limits. First, we consider an accretion disc that feels no torque from the binary. Th","authors_text":"Andrew King, Chris Nixon, Fu-Guo Xie, Rebecca G. Martin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-18T00:04:39Z","title":"Circumbinary discs around merging stellar-mass black holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06023","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":"sha256:87afd7d6d0d08f56a342a392c8e8000461b5e90424b152eb74d255487d29dd46","target":"record","created_at":"2026-05-18T00:07:05Z","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":"e13b65b7012ae0fb94e0f6149d593bd7f59efdd37e56ef1b599ca090ee4413df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-18T00:04:39Z","title_canon_sha256":"32f34e63dba39c79770b6454d07f4ac61f266d1f870b604d8d14d89812db2a05"},"schema_version":"1.0","source":{"id":"1808.06023","kind":"arxiv","version":1}},"canonical_sha256":"36c0c919b101688640437957b6c0e113366ec63efa29998cb706d0332e1f5ed8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"36c0c919b101688640437957b6c0e113366ec63efa29998cb706d0332e1f5ed8","first_computed_at":"2026-05-18T00:07:05.406797Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:05.406797Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oMdmENGXP4y90bH3A523irihF3iV8AbnefX+QPOdafB0UR79QWjQSbNcxgKGZynrHDc7RPjLt2tZrnK/seXsBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:05.407506Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.06023","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87afd7d6d0d08f56a342a392c8e8000461b5e90424b152eb74d255487d29dd46","sha256:c924cfcf3583caaeed9fce33ae2e73da2c49846e89c16ee34dd12c6a3e9323a5"],"state_sha256":"b155597aa26512da82363347d15bad9e845f9dde4e0836660618ac19627f6340"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1fjpfKzJvCGs7muK+Ht0MOFfEFn0SJg5c2szUAUTPv7LbJYudmTKHiY+eOLmxMSPVTYDWwZMDoYZiL2tmCZ2AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T15:08:10.168356Z","bundle_sha256":"8adddcbf111cd6772cf97bd98648483168e3513794b91d5dedce0db0495f7494"}}