{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ZTGCW5XDVVDTPDZQ4KUTE6KOEI","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":"dc127e2e8e21931bc1ebd062834ec630a7fd49e206fc802244b0c1470f218512","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-12-12T19:17:08Z","title_canon_sha256":"5d22a59910a3e9784c5f3e0e4f043804541b9cd966d3265bc5dea29f805ee6e5"},"schema_version":"1.0","source":{"id":"1712.04476","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.04476","created_at":"2026-05-18T00:15:09Z"},{"alias_kind":"arxiv_version","alias_value":"1712.04476v2","created_at":"2026-05-18T00:15:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.04476","created_at":"2026-05-18T00:15:09Z"},{"alias_kind":"pith_short_12","alias_value":"ZTGCW5XDVVDT","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZTGCW5XDVVDTPDZQ","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZTGCW5XD","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:43d457e44171657f7f3df05956d56dacc2c5bf11a04cd36d3918715180e93926","target":"graph","created_at":"2026-05-18T00:15:09Z","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":"Building on the first paper in this series (Duncan et al. 2018), we present a study investigating the performance of Gaussian process photometric redshift (photo-z) estimates for galaxies and active galactic nuclei detected in deep radio continuum surveys. A Gaussian process redshift code is used to produce photo-z estimates targeting specific subsets of both the AGN population - infrared, X-ray and optically selected AGN - and the general galaxy population. The new estimates for the AGN population are found to perform significantly better at z > 1 than the template-based photo-z estimates pre","authors_text":"Huub J. A. Rottgering, Kenneth J Duncan, Matt J. Jarvis, Michael J. I. Brown","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-12-12T19:17:08Z","title":"Photometric redshifts for the next generation of deep radio continuum surveys - II. Gaussian processes and hybrid estimates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.04476","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:cc5723b0de14f8af7dd53c07d42978e9bc06d0061f57d5eecfbc3fcafca51df7","target":"record","created_at":"2026-05-18T00:15:09Z","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":"dc127e2e8e21931bc1ebd062834ec630a7fd49e206fc802244b0c1470f218512","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-12-12T19:17:08Z","title_canon_sha256":"5d22a59910a3e9784c5f3e0e4f043804541b9cd966d3265bc5dea29f805ee6e5"},"schema_version":"1.0","source":{"id":"1712.04476","kind":"arxiv","version":2}},"canonical_sha256":"cccc2b76e3ad47378f30e2a932794e223755ffee420ed58c3e83b545c5e10242","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cccc2b76e3ad47378f30e2a932794e223755ffee420ed58c3e83b545c5e10242","first_computed_at":"2026-05-18T00:15:09.954851Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:09.954851Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OoTCGpVt78GK4CmC/g9vM6O4fRcqK4XE8kanGtp5uR8hcN17grYvqZtqf26ZRy0eqnczAQnsmZnybjSubjQLCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:09.955379Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.04476","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc5723b0de14f8af7dd53c07d42978e9bc06d0061f57d5eecfbc3fcafca51df7","sha256:43d457e44171657f7f3df05956d56dacc2c5bf11a04cd36d3918715180e93926"],"state_sha256":"da616e6ae8bb8add68c8ec37e3e71ad4ff5787e3b81307284d454ae9a6edc771"}