{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:6JIIOH35IZC25HJTNA2YXQ7LYM","short_pith_number":"pith:6JIIOH35","canonical_record":{"source":{"id":"2111.09439","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-11-17T22:54:30Z","cross_cats_sorted":[],"title_canon_sha256":"82e975f97bff2b0935eb94cd6e0f1c04df5dabd5e52fa507cb965dcdf571c4c3","abstract_canon_sha256":"055ec84c10ff3b841100104124c86200dc91382f8459b4aa0600edcd84748585"},"schema_version":"1.0"},"canonical_sha256":"f250871f7d4645ae9d3368358bc3ebc32f5346af1825d61733662f494fef3fab","source":{"kind":"arxiv","id":"2111.09439","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.09439","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"arxiv_version","alias_value":"2111.09439v2","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.09439","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"pith_short_12","alias_value":"6JIIOH35IZC2","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"pith_short_16","alias_value":"6JIIOH35IZC25HJT","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"pith_short_8","alias_value":"6JIIOH35","created_at":"2026-07-05T05:22:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:6JIIOH35IZC25HJTNA2YXQ7LYM","target":"record","payload":{"canonical_record":{"source":{"id":"2111.09439","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-11-17T22:54:30Z","cross_cats_sorted":[],"title_canon_sha256":"82e975f97bff2b0935eb94cd6e0f1c04df5dabd5e52fa507cb965dcdf571c4c3","abstract_canon_sha256":"055ec84c10ff3b841100104124c86200dc91382f8459b4aa0600edcd84748585"},"schema_version":"1.0"},"canonical_sha256":"f250871f7d4645ae9d3368358bc3ebc32f5346af1825d61733662f494fef3fab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:22:42.236211Z","signature_b64":"ZRO34LPekgxk9RsQE4HojlpYAWw7735hclS32vvylY3RIXAeTti4tV09rgGwIHLxjDqLJVQbU/GJ8ciKEocCBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f250871f7d4645ae9d3368358bc3ebc32f5346af1825d61733662f494fef3fab","last_reissued_at":"2026-07-05T05:22:42.235743Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:22:42.235743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2111.09439","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":"2026-07-05T05:22:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xCzBMctNkT6ProaHbI6ONZ8P0XDMZkxgRACYiDJObI6PA/W0KdRwC1FcBT4nE+CZQld4Ov+rDgk3pjHAwfSSAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T04:17:08.426161Z"},"content_sha256":"b296b6db3302b177291b4a56e2ed35e354643edd0d73f45f00ef24991ab1b31d","schema_version":"1.0","event_id":"sha256:b296b6db3302b177291b4a56e2ed35e354643edd0d73f45f00ef24991ab1b31d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:6JIIOH35IZC25HJTNA2YXQ7LYM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The impact and mitigation of broad absorption line quasars in Lyman$-\\alpha$ forest correlations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andreu Font-Ribera, Ignasi P\\'erez-R\\`afols, Lauren Ennesser, Paul Martini","submitted_at":"2021-11-17T22:54:30Z","abstract_excerpt":"Correlations in and with the flux transmission of the Lyman$-\\alpha$ (Ly$\\alpha$) forest in the spectra of high-redshift quasars are powerful cosmological tools, yet these measurements can be compromised if the intrinsic quasar continuum is significantly uncertain. One particularly problematic case is broad absorption line (BAL) quasars, which exhibit blueshifted absorption associated with many spectral features that are consistent with outflows of up to $\\sim0.1c$. As these absorption features can both fall in the forest region and be difficult to distinguish from Ly$\\alpha$ absorption, cosmo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.09439","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2111.09439/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":"2026-07-05T05:22:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BzL7HpsVqGJ7qy0MW3El26o2mo0pvnqK+4jlVFhjcXErtSgU1bYHboAgY1JLBbDtdMKLObBPZz96sEBEfutzCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T04:17:08.426698Z"},"content_sha256":"76703692fdacace0df918dab3779ff0e6bfbf31c5714001d84dc49ab56704ed7","schema_version":"1.0","event_id":"sha256:76703692fdacace0df918dab3779ff0e6bfbf31c5714001d84dc49ab56704ed7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6JIIOH35IZC25HJTNA2YXQ7LYM/bundle.json","state_url":"https://pith.science/pith/6JIIOH35IZC25HJTNA2YXQ7LYM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6JIIOH35IZC25HJTNA2YXQ7LYM/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":"2026-08-20T04:17:08Z","links":{"resolver":"https://pith.science/pith/6JIIOH35IZC25HJTNA2YXQ7LYM","bundle":"https://pith.science/pith/6JIIOH35IZC25HJTNA2YXQ7LYM/bundle.json","state":"https://pith.science/pith/6JIIOH35IZC25HJTNA2YXQ7LYM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6JIIOH35IZC25HJTNA2YXQ7LYM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:6JIIOH35IZC25HJTNA2YXQ7LYM","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":"055ec84c10ff3b841100104124c86200dc91382f8459b4aa0600edcd84748585","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-11-17T22:54:30Z","title_canon_sha256":"82e975f97bff2b0935eb94cd6e0f1c04df5dabd5e52fa507cb965dcdf571c4c3"},"schema_version":"1.0","source":{"id":"2111.09439","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.09439","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"arxiv_version","alias_value":"2111.09439v2","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.09439","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"pith_short_12","alias_value":"6JIIOH35IZC2","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"pith_short_16","alias_value":"6JIIOH35IZC25HJT","created_at":"2026-07-05T05:22:42Z"},{"alias_kind":"pith_short_8","alias_value":"6JIIOH35","created_at":"2026-07-05T05:22:42Z"}],"graph_snapshots":[{"event_id":"sha256:76703692fdacace0df918dab3779ff0e6bfbf31c5714001d84dc49ab56704ed7","target":"graph","created_at":"2026-07-05T05:22:42Z","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/2111.09439/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Correlations in and with the flux transmission of the Lyman$-\\alpha$ (Ly$\\alpha$) forest in the spectra of high-redshift quasars are powerful cosmological tools, yet these measurements can be compromised if the intrinsic quasar continuum is significantly uncertain. One particularly problematic case is broad absorption line (BAL) quasars, which exhibit blueshifted absorption associated with many spectral features that are consistent with outflows of up to $\\sim0.1c$. As these absorption features can both fall in the forest region and be difficult to distinguish from Ly$\\alpha$ absorption, cosmo","authors_text":"Andreu Font-Ribera, Ignasi P\\'erez-R\\`afols, Lauren Ennesser, Paul Martini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-11-17T22:54:30Z","title":"The impact and mitigation of broad absorption line quasars in Lyman$-\\alpha$ forest correlations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.09439","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:b296b6db3302b177291b4a56e2ed35e354643edd0d73f45f00ef24991ab1b31d","target":"record","created_at":"2026-07-05T05:22:42Z","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":"055ec84c10ff3b841100104124c86200dc91382f8459b4aa0600edcd84748585","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-11-17T22:54:30Z","title_canon_sha256":"82e975f97bff2b0935eb94cd6e0f1c04df5dabd5e52fa507cb965dcdf571c4c3"},"schema_version":"1.0","source":{"id":"2111.09439","kind":"arxiv","version":2}},"canonical_sha256":"f250871f7d4645ae9d3368358bc3ebc32f5346af1825d61733662f494fef3fab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f250871f7d4645ae9d3368358bc3ebc32f5346af1825d61733662f494fef3fab","first_computed_at":"2026-07-05T05:22:42.235743Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:22:42.235743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZRO34LPekgxk9RsQE4HojlpYAWw7735hclS32vvylY3RIXAeTti4tV09rgGwIHLxjDqLJVQbU/GJ8ciKEocCBA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:22:42.236211Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.09439","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b296b6db3302b177291b4a56e2ed35e354643edd0d73f45f00ef24991ab1b31d","sha256:76703692fdacace0df918dab3779ff0e6bfbf31c5714001d84dc49ab56704ed7"],"state_sha256":"0a4e2fc891924922913040ffe492279d2e37b70e160f4fbb96d6d7838780b0d6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zqt21ea5ePXrN17dS2Jh4KJ3nw6v/770433xiotYBpVC1HoqNek25Dts1hO0sqS8PDfp5LX6Ne12g3kKPEAKDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T04:17:08.432281Z","bundle_sha256":"95ed9fabbbe06fcd733b04f2c34a1835c5476308dcc82f9dd790497727d809af"}}