{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SYJFVIAQNCSXN6PRTH746F2S4J","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":"31bfa35440cc1b38669f2dfa1ef3228c1e07b59049df4fea388406f179fdec0a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-30T21:31:06Z","title_canon_sha256":"1fa8cdd0ea54a0c0ed5ff006c0f7bfdc9c380b22abaf6eab96639267d7d885cb"},"schema_version":"1.0","source":{"id":"1801.10230","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.10230","created_at":"2026-05-18T00:19:21Z"},{"alias_kind":"arxiv_version","alias_value":"1801.10230v1","created_at":"2026-05-18T00:19:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.10230","created_at":"2026-05-18T00:19:21Z"},{"alias_kind":"pith_short_12","alias_value":"SYJFVIAQNCSX","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SYJFVIAQNCSXN6PR","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SYJFVIAQ","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:762953ebb58eb06024c293ff213b676ca463a950f56254e2ec70c730ab3a5445","target":"graph","created_at":"2026-05-18T00:19:21Z","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":"Using the PACS and SPIRE spectrometers on-board Herschel, we obtained observations of the Taffy galaxies (UGC 12914/12915) and bridge. The Taffy system is believed to be the result of a face-on collision between two gas-rich galaxies, in which the stellar disks passed through each other, but the gas was dispersed into a massive H I and molecular bridge between them. Emission is detected and mapped in both galaxies and the bridge in the [C II]157.7 $\\mu$m and [O I]63.2 $\\mu$m fine-structure lines. Additionally, SPIRE FTS spectroscopy detects the [C I] $^3$P$_2$$\\rightarrow$$^3$P$_1$(809.3 GHz) ","authors_text":"B. Joshi, B. W. Peterson, C. K. Xu, E. Falgarone, F. Boulanger, G. Helou, G. Pineau des For\\^ets, K. Alatalo, M. Cluver, N. Lu, P.-A. Duc, P. Guillard, P. N. Appleton, P. Ogle, P. van der Werf, S. Gallagher, T. Bitsakis, T. H. Jarrett, U. Lisenfeld, Y. Gao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-30T21:31:06Z","title":"Herschel Spectroscopy of the Taffy Galaxies (UGC 12914/12915 = VV 254): Enhanced [C II] emission in the collisionally-formed bridge"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.10230","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":"sha256:360ee7ec740c3018d86876d1689dcc66fe72ad7624800eb766ecec6afde8597c","target":"record","created_at":"2026-05-18T00:19:21Z","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":"31bfa35440cc1b38669f2dfa1ef3228c1e07b59049df4fea388406f179fdec0a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-30T21:31:06Z","title_canon_sha256":"1fa8cdd0ea54a0c0ed5ff006c0f7bfdc9c380b22abaf6eab96639267d7d885cb"},"schema_version":"1.0","source":{"id":"1801.10230","kind":"arxiv","version":1}},"canonical_sha256":"96125aa01068a576f9f199ffcf1752e24e07442153524ee40670fa14610ecc6d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"96125aa01068a576f9f199ffcf1752e24e07442153524ee40670fa14610ecc6d","first_computed_at":"2026-05-18T00:19:21.336166Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:21.336166Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lNBFynHsrDggLmpYNh4vYiCChc+covpoJK7Z8yD8TlvbvzQzFRteyloWjDJXEUjcrsYZ3InDKmKYTBwoyURJDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:21.336764Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.10230","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:360ee7ec740c3018d86876d1689dcc66fe72ad7624800eb766ecec6afde8597c","sha256:762953ebb58eb06024c293ff213b676ca463a950f56254e2ec70c730ab3a5445"],"state_sha256":"7e4337d8103ca1e344e7db9858c8eabf2c97863fb533b6f4da190c5b3dc160d7"}