{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:YUG4K2QJLR5TY25LME7B4KNMEK","short_pith_number":"pith:YUG4K2QJ","canonical_record":{"source":{"id":"2103.11306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-03-21T05:23:34Z","cross_cats_sorted":[],"title_canon_sha256":"36e2df9acc8638a1ad8626a969eab2faf86d5abcfa4b5e19deae120ab7b92686","abstract_canon_sha256":"99eb2057bba66d6183d5887f390ef29bfbdb71b0e5085b4bb283ffc155fbaad5"},"schema_version":"1.0"},"canonical_sha256":"c50dc56a095c7b3c6bab613e1e29ac229c2cd5f5263d443da6ebd78cba163ba2","source":{"kind":"arxiv","id":"2103.11306","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.11306","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"arxiv_version","alias_value":"2103.11306v1","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.11306","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"pith_short_12","alias_value":"YUG4K2QJLR5T","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"pith_short_16","alias_value":"YUG4K2QJLR5TY25L","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"pith_short_8","alias_value":"YUG4K2QJ","created_at":"2026-07-05T02:24:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:YUG4K2QJLR5TY25LME7B4KNMEK","target":"record","payload":{"canonical_record":{"source":{"id":"2103.11306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-03-21T05:23:34Z","cross_cats_sorted":[],"title_canon_sha256":"36e2df9acc8638a1ad8626a969eab2faf86d5abcfa4b5e19deae120ab7b92686","abstract_canon_sha256":"99eb2057bba66d6183d5887f390ef29bfbdb71b0e5085b4bb283ffc155fbaad5"},"schema_version":"1.0"},"canonical_sha256":"c50dc56a095c7b3c6bab613e1e29ac229c2cd5f5263d443da6ebd78cba163ba2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:24:59.056968Z","signature_b64":"ByLM3Nzhv+gDVXR3t3VPmVVZVbA+lJmhMPpqtlzV5Bn4vGJ5uK/FDCC8ieiX3mE+aCFDbAd0n8P7bvDX64bhCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c50dc56a095c7b3c6bab613e1e29ac229c2cd5f5263d443da6ebd78cba163ba2","last_reissued_at":"2026-07-05T02:24:59.056600Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:24:59.056600Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.11306","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":"2026-07-05T02:24:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mJ1tobzYBQbFWkMN4W3tUdiyZD0nw+9TDYjT+6UOFFtq+jB92gDPrxKvqey8sIyHfV504E24ET2ILQTlKNyMBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T02:05:10.244518Z"},"content_sha256":"1bcf012f244a4ae1bfa90b2d60f7d5fe9e0d0a6f7d3607da61990415808b6bf2","schema_version":"1.0","event_id":"sha256:1bcf012f244a4ae1bfa90b2d60f7d5fe9e0d0a6f7d3607da61990415808b6bf2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:YUG4K2QJLR5TY25LME7B4KNMEK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extreme High-velocity Outflows from High-redshift BOSS Quasars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bo Ma, Chen Chen, Fred Hamann","submitted_at":"2021-03-21T05:23:34Z","abstract_excerpt":"It is common to assume that all narrow absorption lines (NALs) at extreme high-velocity shifts form in cosmologically intervening gas or galaxies unrelated to quasars. However, previous detailed studies of individual quasars have shown that some NALs at these large velocity shifts do form in high-speed quasar ejecta. We search for extreme high-velocity NAL outflows (with speeds $\\sim$0.1-0.2c) based on relationships with associated absorption lines (AALs) and broad absorption-line (BAL) outflows. We find that high-velocity NALs are strongly correlated with AALs, BALs, and radio loudness, indic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.11306","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2103.11306/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:24:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EdR2OYsWQa7PZ7wabcnr4w7ZqbFlt7gZJo/by4VgqFxLKk/IERn2IJZWRcgQudAzENB9o4i6CmrvBmQ4G9taCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T02:05:10.244896Z"},"content_sha256":"d1bce69f6f9e7043749d5f9ba95aacede3519b18f9270f2c48ca5203e46c9bbd","schema_version":"1.0","event_id":"sha256:d1bce69f6f9e7043749d5f9ba95aacede3519b18f9270f2c48ca5203e46c9bbd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YUG4K2QJLR5TY25LME7B4KNMEK/bundle.json","state_url":"https://pith.science/pith/YUG4K2QJLR5TY25LME7B4KNMEK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YUG4K2QJLR5TY25LME7B4KNMEK/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":"2026-07-22T02:05:10Z","links":{"resolver":"https://pith.science/pith/YUG4K2QJLR5TY25LME7B4KNMEK","bundle":"https://pith.science/pith/YUG4K2QJLR5TY25LME7B4KNMEK/bundle.json","state":"https://pith.science/pith/YUG4K2QJLR5TY25LME7B4KNMEK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YUG4K2QJLR5TY25LME7B4KNMEK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:YUG4K2QJLR5TY25LME7B4KNMEK","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":"99eb2057bba66d6183d5887f390ef29bfbdb71b0e5085b4bb283ffc155fbaad5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-03-21T05:23:34Z","title_canon_sha256":"36e2df9acc8638a1ad8626a969eab2faf86d5abcfa4b5e19deae120ab7b92686"},"schema_version":"1.0","source":{"id":"2103.11306","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.11306","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"arxiv_version","alias_value":"2103.11306v1","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.11306","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"pith_short_12","alias_value":"YUG4K2QJLR5T","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"pith_short_16","alias_value":"YUG4K2QJLR5TY25L","created_at":"2026-07-05T02:24:59Z"},{"alias_kind":"pith_short_8","alias_value":"YUG4K2QJ","created_at":"2026-07-05T02:24:59Z"}],"graph_snapshots":[{"event_id":"sha256:d1bce69f6f9e7043749d5f9ba95aacede3519b18f9270f2c48ca5203e46c9bbd","target":"graph","created_at":"2026-07-05T02:24:59Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2103.11306/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is common to assume that all narrow absorption lines (NALs) at extreme high-velocity shifts form in cosmologically intervening gas or galaxies unrelated to quasars. However, previous detailed studies of individual quasars have shown that some NALs at these large velocity shifts do form in high-speed quasar ejecta. We search for extreme high-velocity NAL outflows (with speeds $\\sim$0.1-0.2c) based on relationships with associated absorption lines (AALs) and broad absorption-line (BAL) outflows. We find that high-velocity NALs are strongly correlated with AALs, BALs, and radio loudness, indic","authors_text":"Bo Ma, Chen Chen, Fred Hamann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-03-21T05:23:34Z","title":"Extreme High-velocity Outflows from High-redshift BOSS Quasars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.11306","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":"sha256:1bcf012f244a4ae1bfa90b2d60f7d5fe9e0d0a6f7d3607da61990415808b6bf2","target":"record","created_at":"2026-07-05T02:24:59Z","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":"99eb2057bba66d6183d5887f390ef29bfbdb71b0e5085b4bb283ffc155fbaad5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-03-21T05:23:34Z","title_canon_sha256":"36e2df9acc8638a1ad8626a969eab2faf86d5abcfa4b5e19deae120ab7b92686"},"schema_version":"1.0","source":{"id":"2103.11306","kind":"arxiv","version":1}},"canonical_sha256":"c50dc56a095c7b3c6bab613e1e29ac229c2cd5f5263d443da6ebd78cba163ba2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c50dc56a095c7b3c6bab613e1e29ac229c2cd5f5263d443da6ebd78cba163ba2","first_computed_at":"2026-07-05T02:24:59.056600Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:24:59.056600Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ByLM3Nzhv+gDVXR3t3VPmVVZVbA+lJmhMPpqtlzV5Bn4vGJ5uK/FDCC8ieiX3mE+aCFDbAd0n8P7bvDX64bhCA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:24:59.056968Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.11306","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1bcf012f244a4ae1bfa90b2d60f7d5fe9e0d0a6f7d3607da61990415808b6bf2","sha256:d1bce69f6f9e7043749d5f9ba95aacede3519b18f9270f2c48ca5203e46c9bbd"],"state_sha256":"840bdc67fe7cb97a9e2691f66571abc79c2b54cedf05d3aa84deecb1105c2c80"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DH97Ootpmd4JOnTzx70Bag/aFRWGPGd/TeTIBwnMEl77Qn80/d3FvfBNGhEH5BS2ic1CG9T3Iq7iLTQXyLXpBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-22T02:05:10.247573Z","bundle_sha256":"60004afc8528153944766167785a995bd213840294bfa54a94713dc21e02a249"}}