{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ATHV4BNQD7ZL4EPOJQIEDFAOQD","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":"52035ef911050de2cd69ce2523bd268a210b6a98757813c6e3b14fd474df0d25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-13T10:39:38Z","title_canon_sha256":"0de61e51c36c3582ad1b5d1c6b1cf430a9869d70a0103ace5d59d615f287e7fc"},"schema_version":"1.0","source":{"id":"1109.2741","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.2741","created_at":"2026-05-18T02:00:33Z"},{"alias_kind":"arxiv_version","alias_value":"1109.2741v1","created_at":"2026-05-18T02:00:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.2741","created_at":"2026-05-18T02:00:33Z"},{"alias_kind":"pith_short_12","alias_value":"ATHV4BNQD7ZL","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"ATHV4BNQD7ZL4EPO","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"ATHV4BNQ","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:491b7d7470f46ed96f3659abe89d8844d0b76423cdb68ad0ef5a9ce83813a86b","target":"graph","created_at":"2026-05-18T02:00:33Z","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 present neutral hydrogen (H{\\sc i}) observations with the Giant Metrewave Radio Telescope ({\\it GMRT}) of the interacting galaxies NGC5996 and NGC5994, which make up the Arp72 system. Arp72 is an M51-type system and shows a complex distribution of H{\\sc i} tails and a bridge due to tidal interactions. H{\\sc i} column densities ranging from 0.8$-1.8\\times10^{20}$ atoms cm$^{-2}$ in the eastern tidal tail to 1.7$-2\\times10^{21}$ atoms cm$^{-2}$ in the bridge connecting the two galaxies, are seen to be associated with star-forming regions. We discuss the morphological and kinematic similaritie","authors_text":"Chandreyee Sengupta, D.J. Saikia, K. S. Dwarakanath","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-13T10:39:38Z","title":"HI in Arp72 and similarities with M51-type systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.2741","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:a1ef82043aa886a245c57054a5997526d334448ac299777291cbbb39c2715a40","target":"record","created_at":"2026-05-18T02:00:33Z","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":"52035ef911050de2cd69ce2523bd268a210b6a98757813c6e3b14fd474df0d25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-09-13T10:39:38Z","title_canon_sha256":"0de61e51c36c3582ad1b5d1c6b1cf430a9869d70a0103ace5d59d615f287e7fc"},"schema_version":"1.0","source":{"id":"1109.2741","kind":"arxiv","version":1}},"canonical_sha256":"04cf5e05b01ff2be11ee4c1041940e80dfb5b5dc03afd7b58cde47b96fc504ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04cf5e05b01ff2be11ee4c1041940e80dfb5b5dc03afd7b58cde47b96fc504ac","first_computed_at":"2026-05-18T02:00:33.757927Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:33.757927Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G6riHjwozGczq05pv4us0oq0nJOlhcIZ9PRwlTKgcio7j4MfGRlmu5JqhVZppIn5lXNlHAzcuFrxTjgtTVtWAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:33.758469Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.2741","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1ef82043aa886a245c57054a5997526d334448ac299777291cbbb39c2715a40","sha256:491b7d7470f46ed96f3659abe89d8844d0b76423cdb68ad0ef5a9ce83813a86b"],"state_sha256":"097e1bca37a0fa4f0a665853a9c49cc17d27da1f1348ac78ab22114756485e67"}