{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ZZ53NOENLA2BBQEUHUOHPJ2V4Q","short_pith_number":"pith:ZZ53NOEN","canonical_record":{"source":{"id":"1408.5808","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-25T15:34:37Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"4304c36d2f50125098e6806f3e1a28dd7ed45d73dd8200fa660d63911934a7de","abstract_canon_sha256":"f1eb27435be6a2b010514bfe5c2e9e699ad3a8591defb1991bfa7ea982d3d404"},"schema_version":"1.0"},"canonical_sha256":"ce7bb6b88d583410c0943d1c77a755e43ed57daf51168e42771f32a86a6af7e1","source":{"kind":"arxiv","id":"1408.5808","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.5808","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"1408.5808v2","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.5808","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"ZZ53NOENLA2B","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZZ53NOENLA2BBQEU","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZZ53NOEN","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ZZ53NOENLA2BBQEUHUOHPJ2V4Q","target":"record","payload":{"canonical_record":{"source":{"id":"1408.5808","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-25T15:34:37Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"4304c36d2f50125098e6806f3e1a28dd7ed45d73dd8200fa660d63911934a7de","abstract_canon_sha256":"f1eb27435be6a2b010514bfe5c2e9e699ad3a8591defb1991bfa7ea982d3d404"},"schema_version":"1.0"},"canonical_sha256":"ce7bb6b88d583410c0943d1c77a755e43ed57daf51168e42771f32a86a6af7e1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:13.320193Z","signature_b64":"c+Mf9vJ+AhA03cQgveXj3pEKz7zXo/Lhy6S2oqmXYfB4qtqFwbIHIK2XuHKLhv/QGgfumvI2/uKP8Mo6N+EqCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce7bb6b88d583410c0943d1c77a755e43ed57daf51168e42771f32a86a6af7e1","last_reissued_at":"2026-05-18T01:42:13.319730Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:13.319730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.5808","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":"2026-05-18T01:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"viwPNVexnkfo5a/bvWRSM9dVmjATynedlOrR2J+tepiuWeR6+aDYBw06VRUlv56lDH7zguXR5+R+WhKaXGAZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T23:22:54.132058Z"},"content_sha256":"21655cd818ebfc98fce77e2d62ebe758bd9454f915ccdb03e6d51a822f3ce202","schema_version":"1.0","event_id":"sha256:21655cd818ebfc98fce77e2d62ebe758bd9454f915ccdb03e6d51a822f3ce202"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ZZ53NOENLA2BBQEUHUOHPJ2V4Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Line-driven radiative outflows in luminous quasars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Gary J. Ferland, James T. Allen, Paul C. Hewett, Rebecca A. A. Bowler","submitted_at":"2014-08-25T15:34:37Z","abstract_excerpt":"An analysis of ~19500 narrow (<200 km/s) CIV 1548.2,1550.8 absorbers in ~34000 Sloan Digital Sky Survey quasar spectra is presented. The statistics of the number of absorbers as a function of outflow-velocity shows that in approximately two-thirds of outflows, with multiple CIV absorbers present, absorbers are line-locked at the 500 km/s velocity separation of the CIV absorber doublet; appearing as 'triplets' in the quasar spectra. Line-locking is an observational signature of radiative line driving in outflowing material, where the successive shielding of 'clouds' of material in the outflow l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5808","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":"2026-05-18T01:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o5vro6mPUbGcb4a/bxYMnmUZtQEEUR+X3E0Rbcn98NEYLKMlFUzsKgkDMp76nzo3sph4GHgbZa8oaYrU2t+yAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T23:22:54.132680Z"},"content_sha256":"28779e784864571d4c282ca8054da8749f83b70d7154473dac2d5c6b1fc6fe5d","schema_version":"1.0","event_id":"sha256:28779e784864571d4c282ca8054da8749f83b70d7154473dac2d5c6b1fc6fe5d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZZ53NOENLA2BBQEUHUOHPJ2V4Q/bundle.json","state_url":"https://pith.science/pith/ZZ53NOENLA2BBQEUHUOHPJ2V4Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZZ53NOENLA2BBQEUHUOHPJ2V4Q/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":"2026-06-06T23:22:54Z","links":{"resolver":"https://pith.science/pith/ZZ53NOENLA2BBQEUHUOHPJ2V4Q","bundle":"https://pith.science/pith/ZZ53NOENLA2BBQEUHUOHPJ2V4Q/bundle.json","state":"https://pith.science/pith/ZZ53NOENLA2BBQEUHUOHPJ2V4Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZZ53NOENLA2BBQEUHUOHPJ2V4Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZZ53NOENLA2BBQEUHUOHPJ2V4Q","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":"f1eb27435be6a2b010514bfe5c2e9e699ad3a8591defb1991bfa7ea982d3d404","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-25T15:34:37Z","title_canon_sha256":"4304c36d2f50125098e6806f3e1a28dd7ed45d73dd8200fa660d63911934a7de"},"schema_version":"1.0","source":{"id":"1408.5808","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.5808","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"1408.5808v2","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.5808","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"ZZ53NOENLA2B","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZZ53NOENLA2BBQEU","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZZ53NOEN","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:28779e784864571d4c282ca8054da8749f83b70d7154473dac2d5c6b1fc6fe5d","target":"graph","created_at":"2026-05-18T01:42:13Z","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":"An analysis of ~19500 narrow (<200 km/s) CIV 1548.2,1550.8 absorbers in ~34000 Sloan Digital Sky Survey quasar spectra is presented. The statistics of the number of absorbers as a function of outflow-velocity shows that in approximately two-thirds of outflows, with multiple CIV absorbers present, absorbers are line-locked at the 500 km/s velocity separation of the CIV absorber doublet; appearing as 'triplets' in the quasar spectra. Line-locking is an observational signature of radiative line driving in outflowing material, where the successive shielding of 'clouds' of material in the outflow l","authors_text":"Gary J. Ferland, James T. Allen, Paul C. Hewett, Rebecca A. A. Bowler","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-25T15:34:37Z","title":"Line-driven radiative outflows in luminous quasars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5808","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":"sha256:21655cd818ebfc98fce77e2d62ebe758bd9454f915ccdb03e6d51a822f3ce202","target":"record","created_at":"2026-05-18T01:42:13Z","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":"f1eb27435be6a2b010514bfe5c2e9e699ad3a8591defb1991bfa7ea982d3d404","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-25T15:34:37Z","title_canon_sha256":"4304c36d2f50125098e6806f3e1a28dd7ed45d73dd8200fa660d63911934a7de"},"schema_version":"1.0","source":{"id":"1408.5808","kind":"arxiv","version":2}},"canonical_sha256":"ce7bb6b88d583410c0943d1c77a755e43ed57daf51168e42771f32a86a6af7e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce7bb6b88d583410c0943d1c77a755e43ed57daf51168e42771f32a86a6af7e1","first_computed_at":"2026-05-18T01:42:13.319730Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:13.319730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c+Mf9vJ+AhA03cQgveXj3pEKz7zXo/Lhy6S2oqmXYfB4qtqFwbIHIK2XuHKLhv/QGgfumvI2/uKP8Mo6N+EqCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:13.320193Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.5808","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21655cd818ebfc98fce77e2d62ebe758bd9454f915ccdb03e6d51a822f3ce202","sha256:28779e784864571d4c282ca8054da8749f83b70d7154473dac2d5c6b1fc6fe5d"],"state_sha256":"c7bfb28f84aab8aa6fa876f716c5e25783ab911be824b42b4918bc4512e87881"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yeqdljbnq6xqhYM40aD5XCGI3UkFG9Xza/vrHX5ur988sugNHe9Zf98k1TeWUVWKWH9NBYs4DE45YILjQNO5BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T23:22:54.135974Z","bundle_sha256":"66a4c583b77ee8368fef6bd61c44560144766ea06053cff3dc088ece4df2c8e3"}}