{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:5ZL5T3SFZLH3Y3CSCSTHE34D33","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":"37281d2e7c61a020e09a40c71c6477a06f66e7b512eba7ce502fd9dbc1a358d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-21T21:01:39Z","title_canon_sha256":"e98e7b785c6502234e0e3356db5b1bc1388e63cd79da5a1aa624d5adf5a17762"},"schema_version":"1.0","source":{"id":"1211.5146","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.5146","created_at":"2026-05-18T02:52:34Z"},{"alias_kind":"arxiv_version","alias_value":"1211.5146v2","created_at":"2026-05-18T02:52:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.5146","created_at":"2026-05-18T02:52:34Z"},{"alias_kind":"pith_short_12","alias_value":"5ZL5T3SFZLH3","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"5ZL5T3SFZLH3Y3CS","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"5ZL5T3SF","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:5b351de60b355c53f257cf8159a23ad5f1810eb1622dfb472cf0a2707869b837","target":"graph","created_at":"2026-05-18T02:52:34Z","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 present the BOSS Lyman-alpha (Lya) Forest Sample from SDSS Data Release 9, comprising 54,468 quasar spectra with zqso > 2.15 suitable for Lya forest analysis. This data set probes the intergalactic medium with absorption redshifts 2.0 < z_alpha < 5.7 over an area of 3275 square degrees, and encompasses an approximate comoving volume of 20 h^-3 Gpc^3. With each spectrum, we have included several products designed to aid in Lya forest analysis: improved sky masks that flag pixels where data may be unreliable, corrections for known biases in the pipeline estimated noise, masks for the cores of","authors_text":"Adam D. Myers, Adam S. Bolton, Andreu Font-Ribera, Anze Slosar, Arnaud Borde, Audrey Simmons, Benjamin A. Weaver, Britt Lundgren, Christophe Yeche, Daniel J. Eisenstein, Daniel Margala, Daniel Oravetz, David H. Weinberg, David J. Schlegel, David Kirkby, David N. Spergel, Dmitry Bizyaev, Donald P. Schneider, Elena Malanushenko, Emmanuel Rollinde, Eric Aubourg, Garrett Ebelke, Graziano Rossi, Howard Brewington, Isabelle Paris, James Rich, Jean-Christophe Hamilton, Jean-Marc Le Goff, Jian Ge, Jordi Miralda-Escude, Joseph F. Hennawi, Julian Bautista, Kaike Pan, Khee-Gan Lee, Klaus Honscheid, Kyle S. Dawson, Leslie E. Bartsch, Matteo Viel, Matthew M. Pieri, Michael Blomqvist, Nao Suzuki, Nathalie Palanque-Delabrouille, Nicholas P. Ross, Nicolas G. Busca, Pasquier Noterdaeme, Patrick Petitjean, Rupert A. C. Croft, Shirley Ho, Stephanie Snedden, Stephen Bailey, Timothee Delubac, Viktor Malanushenko, William Carithers","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-21T21:01:39Z","title":"The BOSS Lyman-alpha Forest Sample from SDSS Data Release 9"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.5146","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":"sha256:55553f31006e1052abbb3032e2f7ca5b2b2a4c3f1dc44df48313cccc815d4117","target":"record","created_at":"2026-05-18T02:52:34Z","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":"37281d2e7c61a020e09a40c71c6477a06f66e7b512eba7ce502fd9dbc1a358d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-21T21:01:39Z","title_canon_sha256":"e98e7b785c6502234e0e3356db5b1bc1388e63cd79da5a1aa624d5adf5a17762"},"schema_version":"1.0","source":{"id":"1211.5146","kind":"arxiv","version":2}},"canonical_sha256":"ee57d9ee45cacfbc6c5214a6726f83dee9633a82548a4f99e34b358b28e9a2a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee57d9ee45cacfbc6c5214a6726f83dee9633a82548a4f99e34b358b28e9a2a8","first_computed_at":"2026-05-18T02:52:34.796740Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:52:34.796740Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2CRh8TEQBoNFCCX9VXgbLqbFLDD5itNp13woWIJvkSgBqQJY4IsS9uuGtCo/EOJC4UvBqrYONkx4FYXJUrWDDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:52:34.797223Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.5146","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55553f31006e1052abbb3032e2f7ca5b2b2a4c3f1dc44df48313cccc815d4117","sha256:5b351de60b355c53f257cf8159a23ad5f1810eb1622dfb472cf0a2707869b837"],"state_sha256":"d4f813547540284360ec20d0ed7be9e4340c2d7c116b194e64c79951d77b747c"}