{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:4EOJKXIZK7CW2U7DV6HJYDJGV6","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":"139209040c30bd807fa8fb06b4d905d4ae75d28fff9a1aff85baae0ca5b30f00","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-07-10T13:28:23Z","title_canon_sha256":"868d2391338ea56ade97641144672fde3fce411f9300c425640c45a08ab29ac6"},"schema_version":"1.0","source":{"id":"1207.2339","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.2339","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"arxiv_version","alias_value":"1207.2339v1","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.2339","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"pith_short_12","alias_value":"4EOJKXIZK7CW","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4EOJKXIZK7CW2U7D","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4EOJKXIZ","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:38e53f73cbbbfe2d4d4b601154b7f785b80429b95154db330e8179ddfeb81ac0","target":"graph","created_at":"2026-05-18T01:56:25Z","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":"Classical novae (CNe) represent a major class of supersoft X-ray sources (SSSs) in the central region of our neighbouring galaxy M 31. Significantly different SSS properties of CNe in the M 31 bulge and disk were indicated by recent X-ray population studies, which however considered only a small number of disk novae. We initiated a target of opportunity (ToO) program with XMM-Newton to observe the SSS phases of CNe in the disk of M 31 and improve the database for further population studies. We analysed two XMM-Newton ToO observations triggered in Aug 2011 and Jan 2012, respectively, and extrac","authors_text":"F. Haberl, G. Sala, H. Stiele, M. Della Valle, M. Henze, M. Hernanz, W. Pietsch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-07-10T13:28:23Z","title":"M31N 2008-05d: A M 31 disk nova with a dipping supersoft X-ray light curve"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.2339","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:b88bcefc453d5516650e212f387284ffe43b2ddd2e28efee2d291c2cc2976069","target":"record","created_at":"2026-05-18T01:56:25Z","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":"139209040c30bd807fa8fb06b4d905d4ae75d28fff9a1aff85baae0ca5b30f00","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-07-10T13:28:23Z","title_canon_sha256":"868d2391338ea56ade97641144672fde3fce411f9300c425640c45a08ab29ac6"},"schema_version":"1.0","source":{"id":"1207.2339","kind":"arxiv","version":1}},"canonical_sha256":"e11c955d1957c56d53e3af8e9c0d26afa060b2d7929be33d85a154280bef37f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e11c955d1957c56d53e3af8e9c0d26afa060b2d7929be33d85a154280bef37f8","first_computed_at":"2026-05-18T01:56:25.882858Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:25.882858Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tm/ZNr4AQXJYGoYVXw0iC8mAL4GHjh8NS9O6sUr2yqYRrxYMg6V9rXLoRLvfkGH0hGKzygu5LHzvgaXB6uEPCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:25.883600Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.2339","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b88bcefc453d5516650e212f387284ffe43b2ddd2e28efee2d291c2cc2976069","sha256:38e53f73cbbbfe2d4d4b601154b7f785b80429b95154db330e8179ddfeb81ac0"],"state_sha256":"a9c6d290460552a8bf42066649709288fd13ec9fc50ac64d15cce89ff6bfe0ba"}