{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:UECU2SOZQ7JPFZ24DGTWE2T2NU","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":"e0bb2eb81262de9c7e08bb46aada2c2d0980dc8a77f81444f888658da3af69cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-09T18:43:27Z","title_canon_sha256":"e28c59c4936bdcfd873acfbef19fb5a0f2b62e0fa704e3f3017d1f678cba6d59"},"schema_version":"1.0","source":{"id":"1211.2208","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.2208","created_at":"2026-05-18T02:55:18Z"},{"alias_kind":"arxiv_version","alias_value":"1211.2208v3","created_at":"2026-05-18T02:55:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.2208","created_at":"2026-05-18T02:55:18Z"},{"alias_kind":"pith_short_12","alias_value":"UECU2SOZQ7JP","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"UECU2SOZQ7JPFZ24","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"UECU2SOZ","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:689e1e5b50ba8ddd20984ca4002ac021806a14284620f31951ee1edeab8a580e","target":"graph","created_at":"2026-05-18T02:55:18Z","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":"Context: The Subaru Deep Field (SDF) Supernova Survey discovered 10 Type Ia supernovae (SNe Ia) in the redshift range 1.5<z<2.0, as determined solely from photometric redshifts of the host galaxies. However, photometric redshifts might be biased, and the SN sample could be contaminated by active galactic nuclei (AGNs).\n  Aims: We aim to obtain the first robust redshift measurement and classification of a z > 1.5 SDF SN Ia host galaxy candidate\n  Methods: We use the X-shooter (U-to-K-band) spectrograph on the Very Large Telescope to allow the detection of different emission lines in a wide spec","authors_text":"Dan Maoz, Dovi Poznanski, Jens Hjorth, Or Graur, Teddy F. Frederiksen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-09T18:43:27Z","title":"Spectroscopic identification of a redshift 1.55 supernova host galaxy from the Subaru Deep Field Supernova Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.2208","kind":"arxiv","version":3},"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:deb70b22c071d1b8061c3e4e79c7d1f71f3c98cf090d12d616fe5172b1a30df8","target":"record","created_at":"2026-05-18T02:55:18Z","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":"e0bb2eb81262de9c7e08bb46aada2c2d0980dc8a77f81444f888658da3af69cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-11-09T18:43:27Z","title_canon_sha256":"e28c59c4936bdcfd873acfbef19fb5a0f2b62e0fa704e3f3017d1f678cba6d59"},"schema_version":"1.0","source":{"id":"1211.2208","kind":"arxiv","version":3}},"canonical_sha256":"a1054d49d987d2f2e75c19a7626a7a6d130dd5bfe98f0bcffb666726e00a5299","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a1054d49d987d2f2e75c19a7626a7a6d130dd5bfe98f0bcffb666726e00a5299","first_computed_at":"2026-05-18T02:55:18.658025Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:55:18.658025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aRQCTxbHXK3yswb9E0pkzqtpvbJHiy9HztO0naIfWiQNwU6H7UR2CKLeqeW0NweWGriBc7bQWWPfy+BwAzhZCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:55:18.658467Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.2208","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:deb70b22c071d1b8061c3e4e79c7d1f71f3c98cf090d12d616fe5172b1a30df8","sha256:689e1e5b50ba8ddd20984ca4002ac021806a14284620f31951ee1edeab8a580e"],"state_sha256":"22c1e38ff10f414b975c588f55feca1c5a1a3e33b349d6b9e54bf25f3ef3273d"}