{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:AN7FCR7C2ZSULGDMVRIIM6P6ND","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":"3aabba98516d12fb40a57639955cac9ddadf922937bce1713d4578a4a0416e39","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-25T10:40:15Z","title_canon_sha256":"b01905a6e73f59334b915b751ab3c521bae793ecf9129dc58782e2984b543231"},"schema_version":"1.0","source":{"id":"1707.07905","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.07905","created_at":"2026-05-18T00:36:02Z"},{"alias_kind":"arxiv_version","alias_value":"1707.07905v1","created_at":"2026-05-18T00:36:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.07905","created_at":"2026-05-18T00:36:02Z"},{"alias_kind":"pith_short_12","alias_value":"AN7FCR7C2ZSU","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"AN7FCR7C2ZSULGDM","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"AN7FCR7C","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:6dca5cde08612dc477c30d4f0bc2951289d272563f9b8ce972f1e9b1549508ec","target":"graph","created_at":"2026-05-18T00:36:02Z","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 and make publicly available the second data release (DR2) of the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ) survey. KODIAQ DR2 consists of a fully-reduced sample of 300 quasars at 0.07 < z_em < 5.29 observed with HIRES at high resolution (36,000 <= R <= 103,000). DR2 contains 831 spectra available in continuum normalized form, representing a sum total exposure time of ~4.9 megaseconds on source. These co-added spectra arise from a total of 1577 individual exposures of quasars taken from the Keck Observatory Archive (KOA) in raw form and uniformly process","authors_text":"Andrew J. Fox, Brian W. O'Shea, Jason Tumlinson, J. Christopher Howk, John M. O'Meara, J. Xavier Prochaska, Molly S. Peeples, Nicolas Lehner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-25T10:40:15Z","title":"The Second Data Release of the KODIAQ Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07905","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":"sha256:00074f9669db16a3d39d63d1ff508cb3f8df5ddc2c067bba8da8ab556f97ca9d","target":"record","created_at":"2026-05-18T00:36:02Z","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":"3aabba98516d12fb40a57639955cac9ddadf922937bce1713d4578a4a0416e39","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-25T10:40:15Z","title_canon_sha256":"b01905a6e73f59334b915b751ab3c521bae793ecf9129dc58782e2984b543231"},"schema_version":"1.0","source":{"id":"1707.07905","kind":"arxiv","version":1}},"canonical_sha256":"037e5147e2d66545986cac508679fe68d91a91bbeb508f68ada3b5d8b2d23d72","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"037e5147e2d66545986cac508679fe68d91a91bbeb508f68ada3b5d8b2d23d72","first_computed_at":"2026-05-18T00:36:02.899711Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:02.899711Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LNVvQny2HWzARqQ8gU+mFzukypPc4aHRej16L96eF2XRw/25I4g/SWO882ltCX/J4xz+9FqcrozoBs2/R2CWAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:02.900070Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.07905","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00074f9669db16a3d39d63d1ff508cb3f8df5ddc2c067bba8da8ab556f97ca9d","sha256:6dca5cde08612dc477c30d4f0bc2951289d272563f9b8ce972f1e9b1549508ec"],"state_sha256":"55f43cc4215fb9b0df02b974f2aa8422de90f3275500194f0a05f01c12721b59"}