{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:3ARF4NSXG6HK5JSSAE7ALY3FHL","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":"f626a87489f8fcad38da89c3cb470b7d6eae7c835b47c6cd12e0d109b60b939b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-03T17:50:00Z","title_canon_sha256":"796d41169aff219a92bb9d567ad54cee863ee297f8e03bc274863d88eb054a64"},"schema_version":"1.0","source":{"id":"1308.0728","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.0728","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"arxiv_version","alias_value":"1308.0728v1","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0728","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"pith_short_12","alias_value":"3ARF4NSXG6HK","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"3ARF4NSXG6HK5JSS","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"3ARF4NSX","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:1ac48400de9595211b2928141512f93126e2e75c55d4d0b1aa19a68658f8e87a","target":"graph","created_at":"2026-05-18T01:48:24Z","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 report the discovery of a probable dwarf galaxy colliding with NGC 1232. This collision is visible only in the X-ray spectral band, and it is creating a region of shocked gas with a temperature of 5.8 MK covering an impact area 7.25 kpc in diameter. The X-ray luminosity is 3.7 x1038ergs s-1. The long lifetime of this gas against radiative and adiabatic cooling should permit the use of the luminous afterglow from such collisions to be used as a way of estimating their importance in galaxy evolution.","authors_text":"Gordon P. Garmire","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-03T17:50:00Z","title":"X-ray discovery of a dwarf-galaxy galaxy collision"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0728","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":"sha256:5400310e73d0dd054b311b25948104978d7568fcad9fc38282581a733375b4ff","target":"record","created_at":"2026-05-18T01:48:24Z","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":"f626a87489f8fcad38da89c3cb470b7d6eae7c835b47c6cd12e0d109b60b939b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-03T17:50:00Z","title_canon_sha256":"796d41169aff219a92bb9d567ad54cee863ee297f8e03bc274863d88eb054a64"},"schema_version":"1.0","source":{"id":"1308.0728","kind":"arxiv","version":1}},"canonical_sha256":"d8225e3657378eaea652013e05e3653ad7e47c021f585a5fa41ee2ef7b894bf9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d8225e3657378eaea652013e05e3653ad7e47c021f585a5fa41ee2ef7b894bf9","first_computed_at":"2026-05-18T01:48:24.217162Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:24.217162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nom1UCQxCPo2dOpeY/2P2uROEZiY6EtSB0lTiXJtHUer51YuxVoHd1MfFIlLH8MHGN4l0ex9dw40UTljFFRZBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:24.217872Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.0728","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5400310e73d0dd054b311b25948104978d7568fcad9fc38282581a733375b4ff","sha256:1ac48400de9595211b2928141512f93126e2e75c55d4d0b1aa19a68658f8e87a"],"state_sha256":"60c5225b63e3c83b7f55b99f45c74b052f0f564a7a0c98cc9a2126f89fb39b28"}