{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:XRFYHH64SN6VM63OAMBQT4ZBUJ","short_pith_number":"pith:XRFYHH64","canonical_record":{"source":{"id":"1101.4952","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:11:04Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"5d0fd2516763f46d7b204e427837125fef95f9fb5dd5a3ba6c0f6c05f05717e6","abstract_canon_sha256":"22672f018d136d82cc72487b1437177cfe7784a5b55d48b5b58d2d6c660a9a15"},"schema_version":"1.0"},"canonical_sha256":"bc4b839fdc937d567b6e030309f321a266751892d7e04a9c6c7ede0cd3b4f9a0","source":{"kind":"arxiv","id":"1101.4952","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.4952","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"arxiv_version","alias_value":"1101.4952v2","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.4952","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"pith_short_12","alias_value":"XRFYHH64SN6V","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"XRFYHH64SN6VM63O","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"XRFYHH64","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:XRFYHH64SN6VM63OAMBQT4ZBUJ","target":"record","payload":{"canonical_record":{"source":{"id":"1101.4952","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:11:04Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"5d0fd2516763f46d7b204e427837125fef95f9fb5dd5a3ba6c0f6c05f05717e6","abstract_canon_sha256":"22672f018d136d82cc72487b1437177cfe7784a5b55d48b5b58d2d6c660a9a15"},"schema_version":"1.0"},"canonical_sha256":"bc4b839fdc937d567b6e030309f321a266751892d7e04a9c6c7ede0cd3b4f9a0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:22.165431Z","signature_b64":"zjnaTmeetuIyK1yE3uDm1F/aLnqXd02tWuJ2yc/yYxBNbGWYd3sIL0PL3ubUWwpS+GQKuVLxBKHnLN3B9kV+Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc4b839fdc937d567b6e030309f321a266751892d7e04a9c6c7ede0cd3b4f9a0","last_reissued_at":"2026-05-18T02:03:22.164821Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:22.164821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.4952","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":"2026-05-18T02:03:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M5cGcsYUytJejkYp9r4QQ5gz6T5KKdxx850/JcGSfImE57nQV8UNIk0TJJ/eqBuhWhc3ZQXANVJL+amP764OCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T10:22:29.921440Z"},"content_sha256":"e7df376fa1209527dd4d2d50a887d6ad003613e8ef257632da80c7f730d67193","schema_version":"1.0","event_id":"sha256:e7df376fa1209527dd4d2d50a887d6ad003613e8ef257632da80c7f730d67193"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:XRFYHH64SN6VM63OAMBQT4ZBUJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Geometric and Dynamical Models of Reverberation Mapping Data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Anna Pancoast, Brendon J. Brewer, Tommaso Treu (University of California at Santa Barbara)","submitted_at":"2011-01-25T21:11:04Z","abstract_excerpt":"We present a general method to analyze reverberation mapping data that provides both estimates for the black hole mass and for the geometry and dynamics of the broad line region (BLR) in active galactic nuclei (AGN). Our method directly infers the spatial and velocity distribution of the BLR from the data, allowing us to easily derive a velocity-resolved transfer function and allowing for a self-consistent estimate of the black hole mass without a virial coefficient. We obtain estimates and reasonable uncertainties of the BLR model parameters by implementing a Markov Chain Monte Carlo algorith"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.4952","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":"2026-05-18T02:03:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LHSM+xKOEdWopsWlBcb4bAf/Kms8vLRF87nWDOZkGlmYEaS+fYwHXNu6jIp2yLw3WOLdjpR203JljPlIG9V9BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T10:22:29.921814Z"},"content_sha256":"e992db77796a2ef4c4e9da6d47606eeea2d2c1ffa0221481b9ae892e9d1246d7","schema_version":"1.0","event_id":"sha256:e992db77796a2ef4c4e9da6d47606eeea2d2c1ffa0221481b9ae892e9d1246d7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XRFYHH64SN6VM63OAMBQT4ZBUJ/bundle.json","state_url":"https://pith.science/pith/XRFYHH64SN6VM63OAMBQT4ZBUJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XRFYHH64SN6VM63OAMBQT4ZBUJ/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":"2026-05-25T10:22:29Z","links":{"resolver":"https://pith.science/pith/XRFYHH64SN6VM63OAMBQT4ZBUJ","bundle":"https://pith.science/pith/XRFYHH64SN6VM63OAMBQT4ZBUJ/bundle.json","state":"https://pith.science/pith/XRFYHH64SN6VM63OAMBQT4ZBUJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XRFYHH64SN6VM63OAMBQT4ZBUJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:XRFYHH64SN6VM63OAMBQT4ZBUJ","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":"22672f018d136d82cc72487b1437177cfe7784a5b55d48b5b58d2d6c660a9a15","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:11:04Z","title_canon_sha256":"5d0fd2516763f46d7b204e427837125fef95f9fb5dd5a3ba6c0f6c05f05717e6"},"schema_version":"1.0","source":{"id":"1101.4952","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.4952","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"arxiv_version","alias_value":"1101.4952v2","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.4952","created_at":"2026-05-18T02:03:22Z"},{"alias_kind":"pith_short_12","alias_value":"XRFYHH64SN6V","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"XRFYHH64SN6VM63O","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"XRFYHH64","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:e992db77796a2ef4c4e9da6d47606eeea2d2c1ffa0221481b9ae892e9d1246d7","target":"graph","created_at":"2026-05-18T02:03:22Z","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":"We present a general method to analyze reverberation mapping data that provides both estimates for the black hole mass and for the geometry and dynamics of the broad line region (BLR) in active galactic nuclei (AGN). Our method directly infers the spatial and velocity distribution of the BLR from the data, allowing us to easily derive a velocity-resolved transfer function and allowing for a self-consistent estimate of the black hole mass without a virial coefficient. We obtain estimates and reasonable uncertainties of the BLR model parameters by implementing a Markov Chain Monte Carlo algorith","authors_text":"Anna Pancoast, Brendon J. Brewer, Tommaso Treu (University of California at Santa Barbara)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:11:04Z","title":"Geometric and Dynamical Models of Reverberation Mapping Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.4952","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:e7df376fa1209527dd4d2d50a887d6ad003613e8ef257632da80c7f730d67193","target":"record","created_at":"2026-05-18T02:03:22Z","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":"22672f018d136d82cc72487b1437177cfe7784a5b55d48b5b58d2d6c660a9a15","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-01-25T21:11:04Z","title_canon_sha256":"5d0fd2516763f46d7b204e427837125fef95f9fb5dd5a3ba6c0f6c05f05717e6"},"schema_version":"1.0","source":{"id":"1101.4952","kind":"arxiv","version":2}},"canonical_sha256":"bc4b839fdc937d567b6e030309f321a266751892d7e04a9c6c7ede0cd3b4f9a0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc4b839fdc937d567b6e030309f321a266751892d7e04a9c6c7ede0cd3b4f9a0","first_computed_at":"2026-05-18T02:03:22.164821Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:22.164821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zjnaTmeetuIyK1yE3uDm1F/aLnqXd02tWuJ2yc/yYxBNbGWYd3sIL0PL3ubUWwpS+GQKuVLxBKHnLN3B9kV+Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:22.165431Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.4952","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e7df376fa1209527dd4d2d50a887d6ad003613e8ef257632da80c7f730d67193","sha256:e992db77796a2ef4c4e9da6d47606eeea2d2c1ffa0221481b9ae892e9d1246d7"],"state_sha256":"0018648a196717a4c93ccd44f36c0c434640e5772560e125d6826cfa7b6e3008"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6vTy8hoOtJh8avauEtUH21eSlJXCukABf2x7wVMLYFPlqr7CpUDiDUaUOz2TVA9qnK6PU6lK5p7xA9EAqwxfBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T10:22:29.923999Z","bundle_sha256":"de9937c5b730fac015ddd9bd3c3f75d20fa9bd299749127121094415d891025b"}}