{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:D5ICT2X4VL4SBCTETZFVKT5PZZ","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":"dff7b88e30769729752fe6afc543cb0178b341da0fdb3e76eecd81baed808370","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-30T23:58:39Z","title_canon_sha256":"c9b4ad949accde2357a69d58cee8680881264e49684caa7dbb7c169c9e101907"},"schema_version":"1.0","source":{"id":"2407.21250","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.21250","created_at":"2026-07-05T08:50:36Z"},{"alias_kind":"arxiv_version","alias_value":"2407.21250v1","created_at":"2026-07-05T08:50:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.21250","created_at":"2026-07-05T08:50:36Z"},{"alias_kind":"pith_short_12","alias_value":"D5ICT2X4VL4S","created_at":"2026-07-05T08:50:36Z"},{"alias_kind":"pith_short_16","alias_value":"D5ICT2X4VL4SBCTE","created_at":"2026-07-05T08:50:36Z"},{"alias_kind":"pith_short_8","alias_value":"D5ICT2X4","created_at":"2026-07-05T08:50:36Z"}],"graph_snapshots":[{"event_id":"sha256:040d2d3e18aa73e7da4c64c1f33809cf2ea8163e87ab4c09fb3fe7e1969999e4","target":"graph","created_at":"2026-07-05T08:50:36Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2407.21250/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on high-sensitivity neutral hydrogen observations toward the gas-rich interacting galaxies NGC 3395/3396 with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Compared to previous observations carried out by the Very Large Array (VLA) and the Westerbork Synthesis Radio Telescope (WSRT), a more extended HI envelope around this system has been detected. The total HI gas mass of the NGC 3395/3396 system is estimated to be 7.8 x 109 M. This value is 2.7 times more than that reported based on the VLA interferometric maps. Previous observations found a large HI tail extend","authors_text":"Chuan-Peng Zhang, Hai-Yang Yu, Jin-Long Xu, Mei Ai, Ming Zhu, Nai-Ping Yu, Peng Jiang, Xiao-Lan Liu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-30T23:58:39Z","title":"FAST observations of neutral hydrogen in the interacting galaxies NGC 3395/3396"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.21250","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":"sha256:7939d076244a0fb18577465e0c2092d4268cb11708d5782d7bf15d69bc524ad3","target":"record","created_at":"2026-07-05T08:50:36Z","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":"dff7b88e30769729752fe6afc543cb0178b341da0fdb3e76eecd81baed808370","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-30T23:58:39Z","title_canon_sha256":"c9b4ad949accde2357a69d58cee8680881264e49684caa7dbb7c169c9e101907"},"schema_version":"1.0","source":{"id":"2407.21250","kind":"arxiv","version":1}},"canonical_sha256":"1f5029eafcaaf9208a649e4b554fafce51cbfc3c7964760520031ef40c8477c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f5029eafcaaf9208a649e4b554fafce51cbfc3c7964760520031ef40c8477c6","first_computed_at":"2026-07-05T08:50:36.608710Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:50:36.608710Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JJOOIJj7vpd3BMst1SGtN+Gu0e5Q3sdllf3iAZLeZW+rLr6/vXtudFxK/qiNMnHpmdVaq6L6h/xiEr4HtzcaAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:50:36.609137Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.21250","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7939d076244a0fb18577465e0c2092d4268cb11708d5782d7bf15d69bc524ad3","sha256:040d2d3e18aa73e7da4c64c1f33809cf2ea8163e87ab4c09fb3fe7e1969999e4"],"state_sha256":"3e291c91164d1ddab1d999440767f4a3c45adc5994b4be7d463299d459cb90e3"}