{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:BXKMQNOJCWFFZCUPGT2KFTJRZF","short_pith_number":"pith:BXKMQNOJ","canonical_record":{"source":{"id":"1211.1232","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-06T14:18:04Z","cross_cats_sorted":[],"title_canon_sha256":"c7c549eabc39f14e21eb8d95c2bf39465c7597228cd27ee001f29cb82ccdd82a","abstract_canon_sha256":"1160fa690fcfeb18c24b3a7e8138336e136f2b5669c5b15bbf726fb0fb98ffcf"},"schema_version":"1.0"},"canonical_sha256":"0dd4c835c9158a5c8a8f34f4a2cd31c965d63c8410a0e93f663ee461db7523a0","source":{"kind":"arxiv","id":"1211.1232","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.1232","created_at":"2026-05-18T01:53:25Z"},{"alias_kind":"arxiv_version","alias_value":"1211.1232v2","created_at":"2026-05-18T01:53:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.1232","created_at":"2026-05-18T01:53:25Z"},{"alias_kind":"pith_short_12","alias_value":"BXKMQNOJCWFF","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"BXKMQNOJCWFFZCUP","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"BXKMQNOJ","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:BXKMQNOJCWFFZCUPGT2KFTJRZF","target":"record","payload":{"canonical_record":{"source":{"id":"1211.1232","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-06T14:18:04Z","cross_cats_sorted":[],"title_canon_sha256":"c7c549eabc39f14e21eb8d95c2bf39465c7597228cd27ee001f29cb82ccdd82a","abstract_canon_sha256":"1160fa690fcfeb18c24b3a7e8138336e136f2b5669c5b15bbf726fb0fb98ffcf"},"schema_version":"1.0"},"canonical_sha256":"0dd4c835c9158a5c8a8f34f4a2cd31c965d63c8410a0e93f663ee461db7523a0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:25.045754Z","signature_b64":"rPpsl/9AaWCzXtCKY3RAzD47T74JQp2SDg02GO4H5lQGSxI/TXIESuea5z6LlGVOZ+1FjKP1AmiT0n7sFtn8CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0dd4c835c9158a5c8a8f34f4a2cd31c965d63c8410a0e93f663ee461db7523a0","last_reissued_at":"2026-05-18T01:53:25.045160Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:25.045160Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.1232","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":"2026-05-18T01:53:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZVpOuVNHcCmHajFO0X42lZHHkh586JD7uBex68EGE6qUlx+j6hIc71BKlKYIR/B+bl/vTNlKDcSF1gSMyXnVBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:17:41.850827Z"},"content_sha256":"4493d9c0c2117ab0dfcce6e03cc4e392eadaa4680b6dcde70f3051e64fad99d8","schema_version":"1.0","event_id":"sha256:4493d9c0c2117ab0dfcce6e03cc4e392eadaa4680b6dcde70f3051e64fad99d8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:BXKMQNOJCWFFZCUPGT2KFTJRZF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dusty origin of the Broad Line Region in active galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Bozena Czerny, Ishita Maity, Janusz Kaluzny, Krzysztof Hryniewicz","submitted_at":"2012-11-06T14:18:04Z","abstract_excerpt":"The most characteristic property of active galaxies, including quasars, are prominent broad emission lines. I will discuss an interesting possibility that dust is responsible for this phenomenon. The dust is known to be present in quasars in the form of a dusty/molecular torus which results in complexity of the appearance of active galaxies. However, this dust is located further from the black hole than the Broad Line Region. We propose that the dust is present also closer in and it is actually responsible for formation of the broad emission lines. The argument is based on determination of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.1232","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":"2026-05-18T01:53:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uJ3AaKhlB+/aM+dxtaLgMPLdZ0YxqjycUK/hqZFi5tKL97SGaL/H4f/KrWO+XzzLWHgMgya5yLuhiVDuhrcFBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:17:41.851526Z"},"content_sha256":"c4961e4a3ca9e74dba00dfdfab3072d99f092d79114c2f8601102f9dc9e456fc","schema_version":"1.0","event_id":"sha256:c4961e4a3ca9e74dba00dfdfab3072d99f092d79114c2f8601102f9dc9e456fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BXKMQNOJCWFFZCUPGT2KFTJRZF/bundle.json","state_url":"https://pith.science/pith/BXKMQNOJCWFFZCUPGT2KFTJRZF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BXKMQNOJCWFFZCUPGT2KFTJRZF/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":"2026-05-31T18:17:41Z","links":{"resolver":"https://pith.science/pith/BXKMQNOJCWFFZCUPGT2KFTJRZF","bundle":"https://pith.science/pith/BXKMQNOJCWFFZCUPGT2KFTJRZF/bundle.json","state":"https://pith.science/pith/BXKMQNOJCWFFZCUPGT2KFTJRZF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BXKMQNOJCWFFZCUPGT2KFTJRZF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:BXKMQNOJCWFFZCUPGT2KFTJRZF","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":"1160fa690fcfeb18c24b3a7e8138336e136f2b5669c5b15bbf726fb0fb98ffcf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-06T14:18:04Z","title_canon_sha256":"c7c549eabc39f14e21eb8d95c2bf39465c7597228cd27ee001f29cb82ccdd82a"},"schema_version":"1.0","source":{"id":"1211.1232","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.1232","created_at":"2026-05-18T01:53:25Z"},{"alias_kind":"arxiv_version","alias_value":"1211.1232v2","created_at":"2026-05-18T01:53:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.1232","created_at":"2026-05-18T01:53:25Z"},{"alias_kind":"pith_short_12","alias_value":"BXKMQNOJCWFF","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"BXKMQNOJCWFFZCUP","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"BXKMQNOJ","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:c4961e4a3ca9e74dba00dfdfab3072d99f092d79114c2f8601102f9dc9e456fc","target":"graph","created_at":"2026-05-18T01:53:25Z","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 most characteristic property of active galaxies, including quasars, are prominent broad emission lines. I will discuss an interesting possibility that dust is responsible for this phenomenon. The dust is known to be present in quasars in the form of a dusty/molecular torus which results in complexity of the appearance of active galaxies. However, this dust is located further from the black hole than the Broad Line Region. We propose that the dust is present also closer in and it is actually responsible for formation of the broad emission lines. The argument is based on determination of the","authors_text":"Bozena Czerny, Ishita Maity, Janusz Kaluzny, Krzysztof Hryniewicz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-06T14:18:04Z","title":"Dusty origin of the Broad Line Region in active galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.1232","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":"sha256:4493d9c0c2117ab0dfcce6e03cc4e392eadaa4680b6dcde70f3051e64fad99d8","target":"record","created_at":"2026-05-18T01:53:25Z","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":"1160fa690fcfeb18c24b3a7e8138336e136f2b5669c5b15bbf726fb0fb98ffcf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-06T14:18:04Z","title_canon_sha256":"c7c549eabc39f14e21eb8d95c2bf39465c7597228cd27ee001f29cb82ccdd82a"},"schema_version":"1.0","source":{"id":"1211.1232","kind":"arxiv","version":2}},"canonical_sha256":"0dd4c835c9158a5c8a8f34f4a2cd31c965d63c8410a0e93f663ee461db7523a0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0dd4c835c9158a5c8a8f34f4a2cd31c965d63c8410a0e93f663ee461db7523a0","first_computed_at":"2026-05-18T01:53:25.045160Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:25.045160Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rPpsl/9AaWCzXtCKY3RAzD47T74JQp2SDg02GO4H5lQGSxI/TXIESuea5z6LlGVOZ+1FjKP1AmiT0n7sFtn8CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:25.045754Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.1232","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4493d9c0c2117ab0dfcce6e03cc4e392eadaa4680b6dcde70f3051e64fad99d8","sha256:c4961e4a3ca9e74dba00dfdfab3072d99f092d79114c2f8601102f9dc9e456fc"],"state_sha256":"5d21d94f80c2fed7ed85c357a065b094ecc0760ce3e448d335b7a0cc971476d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"921xg7fbxVcWzQkYtqPCmCIlqiEj35nJr0082cC7B/fBma8xXJxM/6l9N13/vb42Y8Z4GvayrVEWGxBuRgBJAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T18:17:41.855608Z","bundle_sha256":"fbefcc987625ca45cc65bca4a29e7f711d9028bce2875f000bec35b1b39c2cdb"}}