{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:LC3RM6HDFTMMJIOMLNCIMJHEIL","short_pith_number":"pith:LC3RM6HD","canonical_record":{"source":{"id":"1508.04750","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-19T19:38:35Z","cross_cats_sorted":[],"title_canon_sha256":"6e232081b6f4877d88fe3bdba50c3db50065582b700d53e1d1f04aa064c6ddd6","abstract_canon_sha256":"47f10772637d17b810a3d54c7da207dabebc0cbe783c35d840ca029b71bf3e9d"},"schema_version":"1.0"},"canonical_sha256":"58b71678e32cd8c4a1cc5b448624e442d4c5c46b86c09dded3ce0b1397c7beff","source":{"kind":"arxiv","id":"1508.04750","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.04750","created_at":"2026-05-18T01:35:01Z"},{"alias_kind":"arxiv_version","alias_value":"1508.04750v1","created_at":"2026-05-18T01:35:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.04750","created_at":"2026-05-18T01:35:01Z"},{"alias_kind":"pith_short_12","alias_value":"LC3RM6HDFTMM","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LC3RM6HDFTMMJIOM","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LC3RM6HD","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:LC3RM6HDFTMMJIOMLNCIMJHEIL","target":"record","payload":{"canonical_record":{"source":{"id":"1508.04750","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-19T19:38:35Z","cross_cats_sorted":[],"title_canon_sha256":"6e232081b6f4877d88fe3bdba50c3db50065582b700d53e1d1f04aa064c6ddd6","abstract_canon_sha256":"47f10772637d17b810a3d54c7da207dabebc0cbe783c35d840ca029b71bf3e9d"},"schema_version":"1.0"},"canonical_sha256":"58b71678e32cd8c4a1cc5b448624e442d4c5c46b86c09dded3ce0b1397c7beff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:01.894288Z","signature_b64":"lyFYd/uTtjwfS4hMtT5SbMJ13tFJdg6m9ti52a313MMCZ6KaZrbTsU5zHmZpwSbKY9Z8jectDYgJZdG3zuNVBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"58b71678e32cd8c4a1cc5b448624e442d4c5c46b86c09dded3ce0b1397c7beff","last_reissued_at":"2026-05-18T01:35:01.893628Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:01.893628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.04750","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":"2026-05-18T01:35:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+2/Cvly3pbMg6t6BvtkBGecRWV0tjkHD9dxZD77oJefXgRBOjNmx6vcjnTvd6Z8syEfOSzfmpezMNkyYOnr6CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T09:33:14.679997Z"},"content_sha256":"d47d559d2e22e978dfc36a7899d62bf58a6d56be2e0a9b65cb664fcd31c990d1","schema_version":"1.0","event_id":"sha256:d47d559d2e22e978dfc36a7899d62bf58a6d56be2e0a9b65cb664fcd31c990d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:LC3RM6HDFTMMJIOMLNCIMJHEIL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effect of a partial coverage of quasar broad-line regions by intervening H$_2$-bearing clouds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aleksandr Ivanchik, Aleksandr Kaminker, Dmitrii Ofengeim, Sergei Balashev, Vyacheslav Klimenko","submitted_at":"2015-08-19T19:38:35Z","abstract_excerpt":"We consider the effect of a partial coverage of quasar broad-line regions (QSO BLRs) by intervening H$_2$-bearing clouds when a part of quasar (QSO) radiation passes by a cloud not taking part in formation of an absorption-line system in the QSO spectrum. That leads to modification of observable absorption line profiles and consequently to a bias in physical parameters derived from standard absorption line analysis. In application to the H$_2$ {absorption} systems the effect has been revealed in the analysis of H$_2$ absorption system in the spectrum of Q~1232+082 (Ivanchik et al. 2010, Balash"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.04750","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":"2026-05-18T01:35:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6cKrR6Q9hD3hduC9Sd7LsKb37cG1+Fu9KmuwdCvo+qt4CAey79iv5APzg4x5demhomCM6a0hKQMoL5cd6xd4Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T09:33:14.680349Z"},"content_sha256":"520e6167df7b55f11fafc98d7d5430a0c65b910532f348b63a6425b561fdc4de","schema_version":"1.0","event_id":"sha256:520e6167df7b55f11fafc98d7d5430a0c65b910532f348b63a6425b561fdc4de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LC3RM6HDFTMMJIOMLNCIMJHEIL/bundle.json","state_url":"https://pith.science/pith/LC3RM6HDFTMMJIOMLNCIMJHEIL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LC3RM6HDFTMMJIOMLNCIMJHEIL/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":"2026-06-08T09:33:14Z","links":{"resolver":"https://pith.science/pith/LC3RM6HDFTMMJIOMLNCIMJHEIL","bundle":"https://pith.science/pith/LC3RM6HDFTMMJIOMLNCIMJHEIL/bundle.json","state":"https://pith.science/pith/LC3RM6HDFTMMJIOMLNCIMJHEIL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LC3RM6HDFTMMJIOMLNCIMJHEIL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LC3RM6HDFTMMJIOMLNCIMJHEIL","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":"47f10772637d17b810a3d54c7da207dabebc0cbe783c35d840ca029b71bf3e9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-19T19:38:35Z","title_canon_sha256":"6e232081b6f4877d88fe3bdba50c3db50065582b700d53e1d1f04aa064c6ddd6"},"schema_version":"1.0","source":{"id":"1508.04750","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.04750","created_at":"2026-05-18T01:35:01Z"},{"alias_kind":"arxiv_version","alias_value":"1508.04750v1","created_at":"2026-05-18T01:35:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.04750","created_at":"2026-05-18T01:35:01Z"},{"alias_kind":"pith_short_12","alias_value":"LC3RM6HDFTMM","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LC3RM6HDFTMMJIOM","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LC3RM6HD","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:520e6167df7b55f11fafc98d7d5430a0c65b910532f348b63a6425b561fdc4de","target":"graph","created_at":"2026-05-18T01:35:01Z","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 consider the effect of a partial coverage of quasar broad-line regions (QSO BLRs) by intervening H$_2$-bearing clouds when a part of quasar (QSO) radiation passes by a cloud not taking part in formation of an absorption-line system in the QSO spectrum. That leads to modification of observable absorption line profiles and consequently to a bias in physical parameters derived from standard absorption line analysis. In application to the H$_2$ {absorption} systems the effect has been revealed in the analysis of H$_2$ absorption system in the spectrum of Q~1232+082 (Ivanchik et al. 2010, Balash","authors_text":"Aleksandr Ivanchik, Aleksandr Kaminker, Dmitrii Ofengeim, Sergei Balashev, Vyacheslav Klimenko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-19T19:38:35Z","title":"Effect of a partial coverage of quasar broad-line regions by intervening H$_2$-bearing clouds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.04750","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:d47d559d2e22e978dfc36a7899d62bf58a6d56be2e0a9b65cb664fcd31c990d1","target":"record","created_at":"2026-05-18T01:35:01Z","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":"47f10772637d17b810a3d54c7da207dabebc0cbe783c35d840ca029b71bf3e9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-08-19T19:38:35Z","title_canon_sha256":"6e232081b6f4877d88fe3bdba50c3db50065582b700d53e1d1f04aa064c6ddd6"},"schema_version":"1.0","source":{"id":"1508.04750","kind":"arxiv","version":1}},"canonical_sha256":"58b71678e32cd8c4a1cc5b448624e442d4c5c46b86c09dded3ce0b1397c7beff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"58b71678e32cd8c4a1cc5b448624e442d4c5c46b86c09dded3ce0b1397c7beff","first_computed_at":"2026-05-18T01:35:01.893628Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:01.893628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lyFYd/uTtjwfS4hMtT5SbMJ13tFJdg6m9ti52a313MMCZ6KaZrbTsU5zHmZpwSbKY9Z8jectDYgJZdG3zuNVBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:01.894288Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.04750","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d47d559d2e22e978dfc36a7899d62bf58a6d56be2e0a9b65cb664fcd31c990d1","sha256:520e6167df7b55f11fafc98d7d5430a0c65b910532f348b63a6425b561fdc4de"],"state_sha256":"14aaae08c0a15be1a339c00809ca31d392c26b9eaa9bfb1f75bb9e667b181ce5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7kUNKOjRRIv5vPGVpWjv1I6bXRFTUUNl0JurvGb72mkq80r0p04mIyppck3Q8Auowoy/KEZMw3DSo8Q39C0kBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T09:33:14.682146Z","bundle_sha256":"995e46a96369f98fc0ed6719800cf383bdc95235361dfe8288210f671421aceb"}}