{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:YM33PKAZBROO6NDIBREDJZ74G7","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":"9cad1396f7d93688d7f6cf60254b6e7b75987ee071b9df4eee5b2cf01dd8fed6","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-12-20T11:15:56Z","title_canon_sha256":"8393a7ea52959b52ad94a501469816d0aefdec00fe241b887aef8d67861be457"},"schema_version":"1.0","source":{"id":"1401.3283","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.3283","created_at":"2026-05-18T02:41:41Z"},{"alias_kind":"arxiv_version","alias_value":"1401.3283v2","created_at":"2026-05-18T02:41:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.3283","created_at":"2026-05-18T02:41:41Z"},{"alias_kind":"pith_short_12","alias_value":"YM33PKAZBROO","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YM33PKAZBROO6NDI","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YM33PKAZ","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:d1f3c11e52db82702eb85c855f92fa220a27f7b379b31e777d860d8662992936","target":"graph","created_at":"2026-05-18T02:41:41Z","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 study the nature of 39 unconfirmed supernovae (SNe) from the sky area covered by Sloan Digital Sky Survey (SDSS) Data Release 8 (DR8), using available photometric and imaging data and intensive literature search. We confirm that 21 objects are real SNe, 2 are Galactic stars, 4 are probable SNe and 12 remain unconfirmed events. The probable types for 4 objects are suggested: 3 SNe are of probable type Ia and SN 1953H is probable type II SN. In addition, we identify the host galaxy of SN 1976N and correct the offsets/coordinates of SNe 1958E, 1972F, and 1976N.","authors_text":"A. A. Hakobyan, A. R. Petrosian, D. Kunth, G. A. Mamon, L. S. Aramyan, M. Turatto, T. A. Nazaryan, V. Zh. Adibekyan","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-12-20T11:15:56Z","title":"Study of unconfirmed supernovae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.3283","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":"sha256:6b4db9fed84d8377b8bc246e6c726ce8608ccf7e6d9c87ec536cdb62124aa609","target":"record","created_at":"2026-05-18T02:41:41Z","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":"9cad1396f7d93688d7f6cf60254b6e7b75987ee071b9df4eee5b2cf01dd8fed6","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-12-20T11:15:56Z","title_canon_sha256":"8393a7ea52959b52ad94a501469816d0aefdec00fe241b887aef8d67861be457"},"schema_version":"1.0","source":{"id":"1401.3283","kind":"arxiv","version":2}},"canonical_sha256":"c337b7a8190c5cef34680c4834e7fc37fb609952a52bcd215cdeefeb10dbfee2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c337b7a8190c5cef34680c4834e7fc37fb609952a52bcd215cdeefeb10dbfee2","first_computed_at":"2026-05-18T02:41:41.841816Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:41:41.841816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F6gQUkYfNyFFyt0sDVVkj6v2dSWGFhvW3CLRGUkcXF5KRKLgi5vm1pow7qUgV/C090YjtPICI0Ex5yKfd2kSCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:41:41.842448Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.3283","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b4db9fed84d8377b8bc246e6c726ce8608ccf7e6d9c87ec536cdb62124aa609","sha256:d1f3c11e52db82702eb85c855f92fa220a27f7b379b31e777d860d8662992936"],"state_sha256":"66bc74cc95f13b8871ac2eb01dc88d64b71949f9ab9a34d896c81499bc4f0c38"}