{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:3B2PVMYBQVF6FLLFRZB2P5QWC5","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":"94cc8460bf61c6d5532dd46201b377e1b3ee53a4568fb99d8b76f13629dbc4ec","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-07-26T14:05:16Z","title_canon_sha256":"1897bfe5f9dc61dd48beac187ac8ff64b7d7d49204feb70de8ff437db4cf2b5c"},"schema_version":"1.0","source":{"id":"2507.19957","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.19957","created_at":"2026-07-05T11:44:12Z"},{"alias_kind":"arxiv_version","alias_value":"2507.19957v1","created_at":"2026-07-05T11:44:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.19957","created_at":"2026-07-05T11:44:12Z"},{"alias_kind":"pith_short_12","alias_value":"3B2PVMYBQVF6","created_at":"2026-07-05T11:44:12Z"},{"alias_kind":"pith_short_16","alias_value":"3B2PVMYBQVF6FLLF","created_at":"2026-07-05T11:44:12Z"},{"alias_kind":"pith_short_8","alias_value":"3B2PVMYB","created_at":"2026-07-05T11:44:12Z"}],"graph_snapshots":[{"event_id":"sha256:c0832258c3bf7c6cfa843e1c71b82812dd632cc0b035ee553774226cb0972ec6","target":"graph","created_at":"2026-07-05T11:44:12Z","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/2507.19957/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have conducted VLBA 1.4 GHz (L-band) continuum observations towards twelve sources with HI 21-cm absorption detections at redshift $0.4<z<0.7$ in the pilot surveys of FLASH, an ongoing survey with the ASKAP radio telescope. 11 of the 12 targets are resolved in the VLBA observations. Using the parsec scale radio images, we have classified the source morphology and identified the radio core. Six of the twelve targets have core-jet morphology, four have two-sided jet morphology, one has a complex morphology, and one is unresolved. We describe a methodology to test whether the emission from the","authors_text":"An Tao, Elaine M. Sadler, Elizabeth K. Mahony, Emily F. Kerrison, Hyein Yoon, J.N.H.S. Aditya, L. Y. Petrov, Matthew Whiting, Raffaella Morganti, Renzhi Su, Simon Weng, Vanessa A. Moss","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-07-26T14:05:16Z","title":"VLBI studies of FLASH H I 21-cm absorbers -- I"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.19957","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:cea5314a45bd0f8479f83d003c2507aef4beb88a23767246d877b6616c6657e4","target":"record","created_at":"2026-07-05T11:44:12Z","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":"94cc8460bf61c6d5532dd46201b377e1b3ee53a4568fb99d8b76f13629dbc4ec","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-07-26T14:05:16Z","title_canon_sha256":"1897bfe5f9dc61dd48beac187ac8ff64b7d7d49204feb70de8ff437db4cf2b5c"},"schema_version":"1.0","source":{"id":"2507.19957","kind":"arxiv","version":1}},"canonical_sha256":"d874fab301854be2ad658e43a7f616174f2296261c012ad8d5cb5ebd63b4ad6f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d874fab301854be2ad658e43a7f616174f2296261c012ad8d5cb5ebd63b4ad6f","first_computed_at":"2026-07-05T11:44:12.100905Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:44:12.100905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RJyR4hfNmNCd6c1ldAzP65xg9KIn1vY7kRN+a9m7M2Z7cbsYOhzk4sckQ+YW3aHZfFL/mZssQSD+D1DG01nBCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:44:12.101473Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.19957","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cea5314a45bd0f8479f83d003c2507aef4beb88a23767246d877b6616c6657e4","sha256:c0832258c3bf7c6cfa843e1c71b82812dd632cc0b035ee553774226cb0972ec6"],"state_sha256":"a008b6c332adfdcfbcede07e3e643540b124f4d1d47a484dd974a544809a9fb3"}