{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7M6KI3QIKMSQSN4TVT2T7IQBYO","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":"d28184e9c4d8b2566107a4fe8c4fbd306ed5af91b52a16d9623b073543e17529","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-07-04T02:34:25Z","title_canon_sha256":"f68832848f4e4d80bad1b5f93c774f789aec13509622bbdd181accb9c1f45ade"},"schema_version":"1.0","source":{"id":"2507.03260","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.03260","created_at":"2026-07-05T11:31:55Z"},{"alias_kind":"arxiv_version","alias_value":"2507.03260v1","created_at":"2026-07-05T11:31:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.03260","created_at":"2026-07-05T11:31:55Z"},{"alias_kind":"pith_short_12","alias_value":"7M6KI3QIKMSQ","created_at":"2026-07-05T11:31:55Z"},{"alias_kind":"pith_short_16","alias_value":"7M6KI3QIKMSQSN4T","created_at":"2026-07-05T11:31:55Z"},{"alias_kind":"pith_short_8","alias_value":"7M6KI3QI","created_at":"2026-07-05T11:31:55Z"}],"graph_snapshots":[{"event_id":"sha256:d48fa7335335dad2e801359b48c386ae4e97273e3ca9a365cb334aaff5a5b1d9","target":"graph","created_at":"2026-07-05T11:31:55Z","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/2507.03260/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate redshift measurements are essential for studying the evolution of quasi-stellar objects (QSOs) and their role in cosmic structure formation. While spectroscopic redshifts provide high precision, they are impractical for the vast number of sources detected in large-scale surveys. Photometric redshifts, derived from broadband fluxes, offer an efficient alternative, particularly when combined with machine learning techniques. In this work, we develop and evaluate a neural network model for predicting the redshifts of QSOs in the Dark Energy Spectroscopic Instrument (DESI) Early Data Rele","authors_text":"Jeremy P. Moss, Stephen J. Curran, Yvette C. Perrott","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-07-04T02:34:25Z","title":"Photometric Redshift Predictions with a Neural Network for DESI Quasars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.03260","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":"sha256:13f0ca0aff758069b452df6943ec2a9e4323bbc91a25b82f4a32f52b06c98bf1","target":"record","created_at":"2026-07-05T11:31:55Z","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":"d28184e9c4d8b2566107a4fe8c4fbd306ed5af91b52a16d9623b073543e17529","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-07-04T02:34:25Z","title_canon_sha256":"f68832848f4e4d80bad1b5f93c774f789aec13509622bbdd181accb9c1f45ade"},"schema_version":"1.0","source":{"id":"2507.03260","kind":"arxiv","version":1}},"canonical_sha256":"fb3ca46e085325093793acf53fa201c3814b02f89a2ad26043fad3c151b462e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb3ca46e085325093793acf53fa201c3814b02f89a2ad26043fad3c151b462e6","first_computed_at":"2026-07-05T11:31:55.741151Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:31:55.741151Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R4EWayDIEOa3aTGHVWLskA6k+c6nZcLJyZE74i94cSGCRVj+m6/1a8FBvEzb08SfXhLmuGqtjM2yCHoTjbOlAA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:31:55.741656Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.03260","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13f0ca0aff758069b452df6943ec2a9e4323bbc91a25b82f4a32f52b06c98bf1","sha256:d48fa7335335dad2e801359b48c386ae4e97273e3ca9a365cb334aaff5a5b1d9"],"state_sha256":"55db01a8d9ba13b2c209c18584c15d0c03119393cfe07ccf994d074d84ea6042"}