{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:NNYIEHARAUCALXP2XSQTBKX6R7","short_pith_number":"pith:NNYIEHAR","canonical_record":{"source":{"id":"1203.1051","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-05T21:11:09Z","cross_cats_sorted":[],"title_canon_sha256":"43e313706f6188287fea8914144fd4f365cc0c16966556b050706b01385cab22","abstract_canon_sha256":"1d9ff2e1bfecff5f3b475c5184b783c32912355d57468d759488df06af61d934"},"schema_version":"1.0"},"canonical_sha256":"6b70821c11050405ddfabca130aafe8fd097cded1fe26ed1fd87fc75b520fa7c","source":{"kind":"arxiv","id":"1203.1051","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1051","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1051v1","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1051","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"pith_short_12","alias_value":"NNYIEHARAUCA","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NNYIEHARAUCALXP2","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NNYIEHAR","created_at":"2026-05-18T12:27:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:NNYIEHARAUCALXP2XSQTBKX6R7","target":"record","payload":{"canonical_record":{"source":{"id":"1203.1051","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-05T21:11:09Z","cross_cats_sorted":[],"title_canon_sha256":"43e313706f6188287fea8914144fd4f365cc0c16966556b050706b01385cab22","abstract_canon_sha256":"1d9ff2e1bfecff5f3b475c5184b783c32912355d57468d759488df06af61d934"},"schema_version":"1.0"},"canonical_sha256":"6b70821c11050405ddfabca130aafe8fd097cded1fe26ed1fd87fc75b520fa7c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:14.634107Z","signature_b64":"7l2Jpoby8TClViVY5kYwJZiL6XOZZ3uReid9pc3Skd3MAmyjasC7713uDFJibqYcPdVgaBag0SC73e4bGlTBBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b70821c11050405ddfabca130aafe8fd097cded1fe26ed1fd87fc75b520fa7c","last_reissued_at":"2026-05-18T01:58:14.633581Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:14.633581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.1051","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":"2026-05-18T01:58:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fpAAMA5ibfydA7TqRV1wFXpD/rARS5WUN6z31GfveyTU8AzXT90D+Nh1rruzSL9p3OBeVnhQtuIbYtrpiN64Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:22:50.596893Z"},"content_sha256":"66a7273221ae2e1f9bffca7c6f5def8f19069ac34b8ef0d485b778efbb94ac05","schema_version":"1.0","event_id":"sha256:66a7273221ae2e1f9bffca7c6f5def8f19069ac34b8ef0d485b778efbb94ac05"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:NNYIEHARAUCALXP2XSQTBKX6R7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Variability in quasar broad absorption line outflows II. Multi-epoch monitoring of SiIV and CIV BAL variability","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Daniel M. Capellupo, Fred Hamann, Joseph C. Shields, Paola Rodr\\'iguez Hidalgo, Tom A. Barlow","submitted_at":"2012-03-05T21:11:09Z","abstract_excerpt":"Broad absorption lines (BALs) in quasar spectra indicate high-velocity outflows that may be present in all quasars and could be an important contributor to feedback to their host galaxies. Variability studies of BALs help illuminate the structure, evolution, and basic physical properties of the outflows. Here we present further results from an ongoing BAL monitoring campaign of a sample of 24 luminous quasars at redshifts 1.2 < z < 2.9. We directly compare the variabilities in the CIV 1549 and SiIV 1400 absorption to try to ascertain the cause(s) of the variability. We find that SiIV BALs are "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1051","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":"2026-05-18T01:58:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hhDO5s6h0+UyAN4AzbfQO2Ajrh/tAWiCtzUbLZ4v7EDeJe1wgLIc2IQIzvBh2xefX2iDGPaM7UkiCpjh0ZD6DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:22:50.597670Z"},"content_sha256":"bdaec0d1fef2153d9fe7edfa7b70ec42283d1b6bd0345160b0f657940cc5dff3","schema_version":"1.0","event_id":"sha256:bdaec0d1fef2153d9fe7edfa7b70ec42283d1b6bd0345160b0f657940cc5dff3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NNYIEHARAUCALXP2XSQTBKX6R7/bundle.json","state_url":"https://pith.science/pith/NNYIEHARAUCALXP2XSQTBKX6R7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NNYIEHARAUCALXP2XSQTBKX6R7/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":"2026-05-30T17:22:50Z","links":{"resolver":"https://pith.science/pith/NNYIEHARAUCALXP2XSQTBKX6R7","bundle":"https://pith.science/pith/NNYIEHARAUCALXP2XSQTBKX6R7/bundle.json","state":"https://pith.science/pith/NNYIEHARAUCALXP2XSQTBKX6R7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NNYIEHARAUCALXP2XSQTBKX6R7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:NNYIEHARAUCALXP2XSQTBKX6R7","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":"1d9ff2e1bfecff5f3b475c5184b783c32912355d57468d759488df06af61d934","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-05T21:11:09Z","title_canon_sha256":"43e313706f6188287fea8914144fd4f365cc0c16966556b050706b01385cab22"},"schema_version":"1.0","source":{"id":"1203.1051","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1051","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1051v1","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1051","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"pith_short_12","alias_value":"NNYIEHARAUCA","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NNYIEHARAUCALXP2","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NNYIEHAR","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:bdaec0d1fef2153d9fe7edfa7b70ec42283d1b6bd0345160b0f657940cc5dff3","target":"graph","created_at":"2026-05-18T01:58:14Z","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":"Broad absorption lines (BALs) in quasar spectra indicate high-velocity outflows that may be present in all quasars and could be an important contributor to feedback to their host galaxies. Variability studies of BALs help illuminate the structure, evolution, and basic physical properties of the outflows. Here we present further results from an ongoing BAL monitoring campaign of a sample of 24 luminous quasars at redshifts 1.2 < z < 2.9. We directly compare the variabilities in the CIV 1549 and SiIV 1400 absorption to try to ascertain the cause(s) of the variability. We find that SiIV BALs are ","authors_text":"Daniel M. Capellupo, Fred Hamann, Joseph C. Shields, Paola Rodr\\'iguez Hidalgo, Tom A. Barlow","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-05T21:11:09Z","title":"Variability in quasar broad absorption line outflows II. Multi-epoch monitoring of SiIV and CIV BAL variability"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1051","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":"sha256:66a7273221ae2e1f9bffca7c6f5def8f19069ac34b8ef0d485b778efbb94ac05","target":"record","created_at":"2026-05-18T01:58:14Z","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":"1d9ff2e1bfecff5f3b475c5184b783c32912355d57468d759488df06af61d934","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-05T21:11:09Z","title_canon_sha256":"43e313706f6188287fea8914144fd4f365cc0c16966556b050706b01385cab22"},"schema_version":"1.0","source":{"id":"1203.1051","kind":"arxiv","version":1}},"canonical_sha256":"6b70821c11050405ddfabca130aafe8fd097cded1fe26ed1fd87fc75b520fa7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b70821c11050405ddfabca130aafe8fd097cded1fe26ed1fd87fc75b520fa7c","first_computed_at":"2026-05-18T01:58:14.633581Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:14.633581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7l2Jpoby8TClViVY5kYwJZiL6XOZZ3uReid9pc3Skd3MAmyjasC7713uDFJibqYcPdVgaBag0SC73e4bGlTBBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:14.634107Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.1051","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66a7273221ae2e1f9bffca7c6f5def8f19069ac34b8ef0d485b778efbb94ac05","sha256:bdaec0d1fef2153d9fe7edfa7b70ec42283d1b6bd0345160b0f657940cc5dff3"],"state_sha256":"38c1fbe64c880824a47a29dd779137002af48b66eabd5071034bfd0685a092c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hNPbpYaStMSBCvmH2BDmMpZAWuTWMX/a9ZcZEsQxFOQ9SIxBhQTbGtD4fi5nXbRvmyuUOfrOOUBjE7AmOkgeAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T17:22:50.602705Z","bundle_sha256":"db083be1372ee2ce9a976fbc511110e5666d7e1dbb6e1800b07b2ab9cd765035"}}