{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:UGPT3KWMUBGTCDKPS5TMCC4QRH","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":"ba8c22f290e5e4cc9fe5e3819c636236ac4571d62a2f92c79d8e40b9e2de880d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-09-20T16:26:46Z","title_canon_sha256":"01968f7ad66f07370cfed566918af848147ad67aae3d3c402110f1456c4a71b6"},"schema_version":"1.0","source":{"id":"2109.09660","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.09660","created_at":"2026-07-05T05:32:43Z"},{"alias_kind":"arxiv_version","alias_value":"2109.09660v4","created_at":"2026-07-05T05:32:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.09660","created_at":"2026-07-05T05:32:43Z"},{"alias_kind":"pith_short_12","alias_value":"UGPT3KWMUBGT","created_at":"2026-07-05T05:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"UGPT3KWMUBGTCDKP","created_at":"2026-07-05T05:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"UGPT3KWM","created_at":"2026-07-05T05:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:8afff8afb5aaca4c65f3d35703e4536e319960eb1bd6f6e66c705b0f5445c64f","target":"graph","created_at":"2026-07-05T05:32:43Z","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/2109.09660/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the second data release of the COSMOS Lyman-Alpha Mapping And Tomography Observations (CLAMATO) Survey conducted with the LRIS spectrograph on the Keck-I telescope. This project used Lyman-alpha forest absorption in the spectra of faint star forming galaxies and quasars at z ~ 2-3 to trace neutral hydrogen in the intergalactic medium. In particular, we use 320 objects over a footprint of ~0.2 deg^2 to reconstruct the absorption field at 2.05 < z < 2.55 at ~2 h^{-1}Mpc resolution. We apply a Wiener filtering technique to the observed data to reconstruct three dimensional maps of the ","authors_text":"Alex Krolewski, Anton M. Koekemoer, Benjamin Horowitz, Brian C. Lemaux, Daichi Kashino, David Schlegel, Joseph F. Hennawi, J. Xavier Prochaska, Khee-Gan Lee, Martin White, Metin Ata, Nao Suzuki, Peter E. Nugent, R. Michael Rich, Thomas M\\\"uller","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-09-20T16:26:46Z","title":"Second Data Release of the COSMOS Lyman-alpha Mapping and Tomographic Observation: The First 3D Maps of the Detailed Cosmic Web at 2.05<z<2.55"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.09660","kind":"arxiv","version":4},"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":"sha256:43e11fdf5e30c3e01adf886e00c2c47168410c1a628e04d1725a7c7a5494a18d","target":"record","created_at":"2026-07-05T05:32:43Z","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":"ba8c22f290e5e4cc9fe5e3819c636236ac4571d62a2f92c79d8e40b9e2de880d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-09-20T16:26:46Z","title_canon_sha256":"01968f7ad66f07370cfed566918af848147ad67aae3d3c402110f1456c4a71b6"},"schema_version":"1.0","source":{"id":"2109.09660","kind":"arxiv","version":4}},"canonical_sha256":"a19f3daacca04d310d4f9766c10b9089f12e1cd42a9225fb486bf22ad45b464f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a19f3daacca04d310d4f9766c10b9089f12e1cd42a9225fb486bf22ad45b464f","first_computed_at":"2026-07-05T05:32:43.062941Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:32:43.062941Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+b2GUcev5Y3SyzZ7OG6uHXHuA9UeM4K0xRctwHWOYrTGQUY9ePKlI+nRIXVVEvXiFb8ngspCI8yoyoimlUs4Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:32:43.063365Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.09660","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43e11fdf5e30c3e01adf886e00c2c47168410c1a628e04d1725a7c7a5494a18d","sha256:8afff8afb5aaca4c65f3d35703e4536e319960eb1bd6f6e66c705b0f5445c64f"],"state_sha256":"3d04adb23614e89e229f514229fe260f457f08a6c34de82847f8745760e25167"}