{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:B2M63LW2L5LXQQ55XVNWXRBWV5","short_pith_number":"pith:B2M63LW2","canonical_record":{"source":{"id":"1109.0537","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-09-02T20:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"1a68af68e75be4ed0a76ce7ab0d23d1ce6eb49ef87dc9da1cfc6af2331dc37ee","abstract_canon_sha256":"0b70d10a97c953b2a38c3bc6255fb40cd8f752125f869d2e0fafc4778570844e"},"schema_version":"1.0"},"canonical_sha256":"0e99edaeda5f577843bdbd5b6bc436af50a93d22897b5367f3532483f823e171","source":{"kind":"arxiv","id":"1109.0537","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.0537","created_at":"2026-05-18T00:48:21Z"},{"alias_kind":"arxiv_version","alias_value":"1109.0537v3","created_at":"2026-05-18T00:48:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.0537","created_at":"2026-05-18T00:48:21Z"},{"alias_kind":"pith_short_12","alias_value":"B2M63LW2L5LX","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"B2M63LW2L5LXQQ55","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"B2M63LW2","created_at":"2026-05-18T12:26:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:B2M63LW2L5LXQQ55XVNWXRBWV5","target":"record","payload":{"canonical_record":{"source":{"id":"1109.0537","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-09-02T20:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"1a68af68e75be4ed0a76ce7ab0d23d1ce6eb49ef87dc9da1cfc6af2331dc37ee","abstract_canon_sha256":"0b70d10a97c953b2a38c3bc6255fb40cd8f752125f869d2e0fafc4778570844e"},"schema_version":"1.0"},"canonical_sha256":"0e99edaeda5f577843bdbd5b6bc436af50a93d22897b5367f3532483f823e171","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:48:21.301141Z","signature_b64":"2kJ2A4t98JDGrAH8elVRjqEfwdM/NFCFT0zwzksKZYeCYtvMgakxum8AvirRQrkqPACST0TrozyHCMl7TBbbBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e99edaeda5f577843bdbd5b6bc436af50a93d22897b5367f3532483f823e171","last_reissued_at":"2026-05-18T00:48:21.300606Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:48:21.300606Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.0537","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:48:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FtS5kiLuie7ZrcI+nBrZ3J4zgHiBLjj2ZmasrnoRJWdCwrdW3JWdku34XBG85kciB1QuCGfjO4PjZ/4hKTXmDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T14:38:54.398669Z"},"content_sha256":"e4b67ca27799af5cb3a160a65a47f0806f46e8b811f4bcaff6261912321aa43e","schema_version":"1.0","event_id":"sha256:e4b67ca27799af5cb3a160a65a47f0806f46e8b811f4bcaff6261912321aa43e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:B2M63LW2L5LXQQ55XVNWXRBWV5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quasars with Anomalous H\\beta\\ Profiles I: Demographics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Charles L. Steinhardt, John D. Silverman","submitted_at":"2011-09-02T20:00:02Z","abstract_excerpt":"The H\\beta\\ emission line in a typical Type I quasar is composed of a broad base and a narrow core, with the core velocity typical of narrow-line region emission, and line-fitting routines typically assume this picture. We test the effects of removing this constraint, and find a substantial group of Type I quasars in the Sloan Digital Sky Survey catalog with H\\beta\\ emission line cores broader than 1200 km/s, above the velocity believed possible for gas in the quasar narrow-line region. We identify this group of \"anomalous H\\beta\\ quasars\" (AHQs) as a distinct population because of a variety o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.0537","kind":"arxiv","version":3},"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":"2026-05-18T00:48:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0fXQ626oN6vvia+3WP0e0ywo1Ordui8eTwVp8oozHmJF+/IH+shFSUIiVu4Wmg3QvmOEe4M8Y5mb0YlC9NACAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T14:38:54.399011Z"},"content_sha256":"4aabe80ac51d9707db0b24e663b1ec1479b42159780714a50c72b20e18f27b5f","schema_version":"1.0","event_id":"sha256:4aabe80ac51d9707db0b24e663b1ec1479b42159780714a50c72b20e18f27b5f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B2M63LW2L5LXQQ55XVNWXRBWV5/bundle.json","state_url":"https://pith.science/pith/B2M63LW2L5LXQQ55XVNWXRBWV5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B2M63LW2L5LXQQ55XVNWXRBWV5/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":"2026-06-02T14:38:54Z","links":{"resolver":"https://pith.science/pith/B2M63LW2L5LXQQ55XVNWXRBWV5","bundle":"https://pith.science/pith/B2M63LW2L5LXQQ55XVNWXRBWV5/bundle.json","state":"https://pith.science/pith/B2M63LW2L5LXQQ55XVNWXRBWV5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B2M63LW2L5LXQQ55XVNWXRBWV5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:B2M63LW2L5LXQQ55XVNWXRBWV5","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":"0b70d10a97c953b2a38c3bc6255fb40cd8f752125f869d2e0fafc4778570844e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-09-02T20:00:02Z","title_canon_sha256":"1a68af68e75be4ed0a76ce7ab0d23d1ce6eb49ef87dc9da1cfc6af2331dc37ee"},"schema_version":"1.0","source":{"id":"1109.0537","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.0537","created_at":"2026-05-18T00:48:21Z"},{"alias_kind":"arxiv_version","alias_value":"1109.0537v3","created_at":"2026-05-18T00:48:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.0537","created_at":"2026-05-18T00:48:21Z"},{"alias_kind":"pith_short_12","alias_value":"B2M63LW2L5LX","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"B2M63LW2L5LXQQ55","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"B2M63LW2","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:4aabe80ac51d9707db0b24e663b1ec1479b42159780714a50c72b20e18f27b5f","target":"graph","created_at":"2026-05-18T00:48:21Z","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":"The H\\beta\\ emission line in a typical Type I quasar is composed of a broad base and a narrow core, with the core velocity typical of narrow-line region emission, and line-fitting routines typically assume this picture. We test the effects of removing this constraint, and find a substantial group of Type I quasars in the Sloan Digital Sky Survey catalog with H\\beta\\ emission line cores broader than 1200 km/s, above the velocity believed possible for gas in the quasar narrow-line region. We identify this group of \"anomalous H\\beta\\ quasars\" (AHQs) as a distinct population because of a variety o","authors_text":"Charles L. Steinhardt, John D. Silverman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-09-02T20:00:02Z","title":"Quasars with Anomalous H\\beta\\ Profiles I: Demographics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.0537","kind":"arxiv","version":3},"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:e4b67ca27799af5cb3a160a65a47f0806f46e8b811f4bcaff6261912321aa43e","target":"record","created_at":"2026-05-18T00:48:21Z","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":"0b70d10a97c953b2a38c3bc6255fb40cd8f752125f869d2e0fafc4778570844e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-09-02T20:00:02Z","title_canon_sha256":"1a68af68e75be4ed0a76ce7ab0d23d1ce6eb49ef87dc9da1cfc6af2331dc37ee"},"schema_version":"1.0","source":{"id":"1109.0537","kind":"arxiv","version":3}},"canonical_sha256":"0e99edaeda5f577843bdbd5b6bc436af50a93d22897b5367f3532483f823e171","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e99edaeda5f577843bdbd5b6bc436af50a93d22897b5367f3532483f823e171","first_computed_at":"2026-05-18T00:48:21.300606Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:48:21.300606Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2kJ2A4t98JDGrAH8elVRjqEfwdM/NFCFT0zwzksKZYeCYtvMgakxum8AvirRQrkqPACST0TrozyHCMl7TBbbBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:48:21.301141Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.0537","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e4b67ca27799af5cb3a160a65a47f0806f46e8b811f4bcaff6261912321aa43e","sha256:4aabe80ac51d9707db0b24e663b1ec1479b42159780714a50c72b20e18f27b5f"],"state_sha256":"86770b2be80b44d793a52240a9551de4fab64a32ee4be61851a7bcdf323a558d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U2pk1mBOd9MG2i2nw+JCHCJJcQ1bGqJ5dSZcvmIPuJNNlha/E/6kXneyEBaHJ5QJcwGrFmJPgTpkmuNCIV2SAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T14:38:54.400899Z","bundle_sha256":"ddcd2599171150f63ae734482029c5e44c7abca29e362365d74ac80cb9f36842"}}