{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:UIO4GWZOO2PVIODPP2K67ZZUAC","short_pith_number":"pith:UIO4GWZO","canonical_record":{"source":{"id":"1808.07877","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-23T18:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"157078c7be01cf27ed63f195557d7ec958afc3da0ecdc49442999fbaf7d2ae9a","abstract_canon_sha256":"4727798dc3a18d7821d2196d1fcdccdbc34f82666057e42dacd2e6a9ae8bcdd8"},"schema_version":"1.0"},"canonical_sha256":"a21dc35b2e769f54386f7e95efe73400b9849c5970bc1e82c396bcbd355a2c6f","source":{"kind":"arxiv","id":"1808.07877","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07877","created_at":"2026-05-17T23:59:14Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07877v2","created_at":"2026-05-17T23:59:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07877","created_at":"2026-05-17T23:59:14Z"},{"alias_kind":"pith_short_12","alias_value":"UIO4GWZOO2PV","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UIO4GWZOO2PVIODP","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UIO4GWZO","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:UIO4GWZOO2PVIODPP2K67ZZUAC","target":"record","payload":{"canonical_record":{"source":{"id":"1808.07877","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-23T18:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"157078c7be01cf27ed63f195557d7ec958afc3da0ecdc49442999fbaf7d2ae9a","abstract_canon_sha256":"4727798dc3a18d7821d2196d1fcdccdbc34f82666057e42dacd2e6a9ae8bcdd8"},"schema_version":"1.0"},"canonical_sha256":"a21dc35b2e769f54386f7e95efe73400b9849c5970bc1e82c396bcbd355a2c6f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:14.582019Z","signature_b64":"91pTV7kKcl8KDqaCYJDQHkZqmjA6FRbGkQ6agBYrn+P2g8BeBvwEcoBXE41c1JShMGatG9PeyIsTPYM7eeySDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a21dc35b2e769f54386f7e95efe73400b9849c5970bc1e82c396bcbd355a2c6f","last_reissued_at":"2026-05-17T23:59:14.581557Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:14.581557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.07877","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":"2026-05-17T23:59:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aN/YZ0NK30ujrU6h6rO27sZBXv5nsQdCt/dbw+lURsg01g4uqzMM0qFKh5k7BIlt1fa8nCzn8x3J3+8eRwNLDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:34:59.912362Z"},"content_sha256":"042e18ba333708b8f2be41a15b3b4b8f1fb6cca0ad17010aac08cf30d0d01100","schema_version":"1.0","event_id":"sha256:042e18ba333708b8f2be41a15b3b4b8f1fb6cca0ad17010aac08cf30d0d01100"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:UIO4GWZOO2PVIODPP2K67ZZUAC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"X-Ray Reverberation From Black Hole Accretion Disks with Realistic Geometric Thickness","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Christopher S. Reynolds, Corbin Taylor","submitted_at":"2018-08-23T18:00:04Z","abstract_excerpt":"X-ray reverberation in AGN, believed to be the result of the reprocessing of corona photons by the underlying accretion disk, has allowed us to probe the properties of the inner-most regions of the accretion flow and the central black hole. This process is modeled via raytracing in the Kerr metric, with the disk thickness almost ubiquitously assumed to be negligible (razor-thin) and the corona commonly approximated as a point source located along the polar axis (a lamppost). In this work, we use the new raytracing suite, Fenrir, to explore the effect that accretion disk geometry has on reverbe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07877","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":""},"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":"2026-05-17T23:59:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZQDvH3dZ6E+Dqz0snrphAq+cNy7ON8+AFaX9tR185jWdnfH9ul4oDMJR4sQK1evTG0ug6/+Ub/4/3CZZbLkaBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:34:59.913034Z"},"content_sha256":"a93c373a1bf2c6805ab9ef582666a3f3b2356e709a631d4c34257c9363abe64f","schema_version":"1.0","event_id":"sha256:a93c373a1bf2c6805ab9ef582666a3f3b2356e709a631d4c34257c9363abe64f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UIO4GWZOO2PVIODPP2K67ZZUAC/bundle.json","state_url":"https://pith.science/pith/UIO4GWZOO2PVIODPP2K67ZZUAC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UIO4GWZOO2PVIODPP2K67ZZUAC/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":"2026-05-26T10:34:59Z","links":{"resolver":"https://pith.science/pith/UIO4GWZOO2PVIODPP2K67ZZUAC","bundle":"https://pith.science/pith/UIO4GWZOO2PVIODPP2K67ZZUAC/bundle.json","state":"https://pith.science/pith/UIO4GWZOO2PVIODPP2K67ZZUAC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UIO4GWZOO2PVIODPP2K67ZZUAC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UIO4GWZOO2PVIODPP2K67ZZUAC","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":"4727798dc3a18d7821d2196d1fcdccdbc34f82666057e42dacd2e6a9ae8bcdd8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-23T18:00:04Z","title_canon_sha256":"157078c7be01cf27ed63f195557d7ec958afc3da0ecdc49442999fbaf7d2ae9a"},"schema_version":"1.0","source":{"id":"1808.07877","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07877","created_at":"2026-05-17T23:59:14Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07877v2","created_at":"2026-05-17T23:59:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07877","created_at":"2026-05-17T23:59:14Z"},{"alias_kind":"pith_short_12","alias_value":"UIO4GWZOO2PV","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UIO4GWZOO2PVIODP","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UIO4GWZO","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:a93c373a1bf2c6805ab9ef582666a3f3b2356e709a631d4c34257c9363abe64f","target":"graph","created_at":"2026-05-17T23:59:14Z","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":"X-ray reverberation in AGN, believed to be the result of the reprocessing of corona photons by the underlying accretion disk, has allowed us to probe the properties of the inner-most regions of the accretion flow and the central black hole. This process is modeled via raytracing in the Kerr metric, with the disk thickness almost ubiquitously assumed to be negligible (razor-thin) and the corona commonly approximated as a point source located along the polar axis (a lamppost). In this work, we use the new raytracing suite, Fenrir, to explore the effect that accretion disk geometry has on reverbe","authors_text":"Christopher S. Reynolds, Corbin Taylor","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-23T18:00:04Z","title":"X-Ray Reverberation From Black Hole Accretion Disks with Realistic Geometric Thickness"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07877","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":"sha256:042e18ba333708b8f2be41a15b3b4b8f1fb6cca0ad17010aac08cf30d0d01100","target":"record","created_at":"2026-05-17T23:59:14Z","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":"4727798dc3a18d7821d2196d1fcdccdbc34f82666057e42dacd2e6a9ae8bcdd8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-23T18:00:04Z","title_canon_sha256":"157078c7be01cf27ed63f195557d7ec958afc3da0ecdc49442999fbaf7d2ae9a"},"schema_version":"1.0","source":{"id":"1808.07877","kind":"arxiv","version":2}},"canonical_sha256":"a21dc35b2e769f54386f7e95efe73400b9849c5970bc1e82c396bcbd355a2c6f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a21dc35b2e769f54386f7e95efe73400b9849c5970bc1e82c396bcbd355a2c6f","first_computed_at":"2026-05-17T23:59:14.581557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:14.581557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"91pTV7kKcl8KDqaCYJDQHkZqmjA6FRbGkQ6agBYrn+P2g8BeBvwEcoBXE41c1JShMGatG9PeyIsTPYM7eeySDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:14.582019Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.07877","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:042e18ba333708b8f2be41a15b3b4b8f1fb6cca0ad17010aac08cf30d0d01100","sha256:a93c373a1bf2c6805ab9ef582666a3f3b2356e709a631d4c34257c9363abe64f"],"state_sha256":"a4dc3d9871c45f017926cae7a907c0fdd6a9bc313e6408de67c630b6d364204b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"88A9h/7Dq4uPMlASwFOW3GhiQ+KdkWU5K5G09VK+vjWHacbRGd6pAUdHtmdDBOKRtAiJwWpFU90nk1dmgHE8AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:34:59.916730Z","bundle_sha256":"8e05f2e87aa48ea5f34b50429deadf75851c9c7b8f424c07d2ec73af800b58b3"}}