{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:PJGQJBGKISRBCOCVMXVIB7SCZ4","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":"ddd614820ef8702f352c37673ee160e433e43c3a8d8c4ede2e52775eb3b7b735","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-05-02T17:26:25Z","title_canon_sha256":"ecc33d7cb41de797ba8fd628c8086a782dd5c091fb57891e4bf096c8f1116200"},"schema_version":"1.0","source":{"id":"1005.0149","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.0149","created_at":"2026-05-18T02:07:43Z"},{"alias_kind":"arxiv_version","alias_value":"1005.0149v1","created_at":"2026-05-18T02:07:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.0149","created_at":"2026-05-18T02:07:43Z"},{"alias_kind":"pith_short_12","alias_value":"PJGQJBGKISRB","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"PJGQJBGKISRBCOCV","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"PJGQJBGK","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:77ec92be7c2fe340e564cf9afedb108c0b5e15446591252c453f095cf637c7b9","target":"graph","created_at":"2026-05-18T02:07:43Z","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"},"paper":{"abstract_excerpt":"We have identified nine new SNR candidates in  M74 with [S II]/H$\\alpha$ $\\geq$ 0.4 as the basic criterion. We obtain [S II]/H$\\alpha$ ratio in the range from 0.40 to 0.91 and H$\\alpha$ intensities from 2.8 $\\times$ $10^{-15}$ erg cm$^{-2}$ s$^{-1}$ to 1.7 $\\times$ $10^{-14}$ erg cm$^{-2}$ s$^{-1}$. We also present spectral follow-up observations of the SNR candidates and can confirm only three of them (SNR2, SNR3, and SNR5). The lack of confirmation for the rest might be due to the contamination by the nearby H II emission regions as well as due to the inaccurate positioning of the long slit ","authors_text":"A. Akyuz, E. Sonbas, M. E. Ozel, S. Balman","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-05-02T17:26:25Z","title":"A Search For Supernova Remnants in The Nearby Spiral Galaxy M74 (NGC 628)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.0149","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:e2780f7c3d9e713db2a4b986ff66deaf4cff8dda544c093f80e2fd98cdb998a3","target":"record","created_at":"2026-05-18T02:07:43Z","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":"ddd614820ef8702f352c37673ee160e433e43c3a8d8c4ede2e52775eb3b7b735","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-05-02T17:26:25Z","title_canon_sha256":"ecc33d7cb41de797ba8fd628c8086a782dd5c091fb57891e4bf096c8f1116200"},"schema_version":"1.0","source":{"id":"1005.0149","kind":"arxiv","version":1}},"canonical_sha256":"7a4d0484ca44a211385565ea80fe42cf01775b7db735010d644597e2f548a1fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a4d0484ca44a211385565ea80fe42cf01775b7db735010d644597e2f548a1fd","first_computed_at":"2026-05-18T02:07:43.975458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:43.975458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UXel9vaaXgi9+HLSQKXSVorYFFu2jtd5aRjw6QyqfrnuMMISIOn964sFznwkkSiJuGu0UGEJY2kJ2zYrU+t6Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:43.976112Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.0149","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e2780f7c3d9e713db2a4b986ff66deaf4cff8dda544c093f80e2fd98cdb998a3","sha256:77ec92be7c2fe340e564cf9afedb108c0b5e15446591252c453f095cf637c7b9"],"state_sha256":"46599d63fca498d0b38c48b355cef2050f2f18d658d59a472c39bad23dc47173"}