{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GB3HXTVAUEJFTUHCQP2LVWNSUP","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":"57d213bb16a703eac15c50e1bf708405dcf05cac54678a9065c73ee762fc3be2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-13T19:03:30Z","title_canon_sha256":"45fedc70bd564bde841764891d5da9df1c2e38ad6887701fb21a85f875f43f3e"},"schema_version":"1.0","source":{"id":"1701.03804","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.03804","created_at":"2026-05-18T00:49:10Z"},{"alias_kind":"arxiv_version","alias_value":"1701.03804v2","created_at":"2026-05-18T00:49:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.03804","created_at":"2026-05-18T00:49:10Z"},{"alias_kind":"pith_short_12","alias_value":"GB3HXTVAUEJF","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"GB3HXTVAUEJFTUHC","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"GB3HXTVA","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:1d58cb6bb1b5835c2f4fbd5a37157a474e377ddfd39cc319956b5b8ffc9b2f9d","target":"graph","created_at":"2026-05-18T00:49:10Z","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 describe the structural, stellar population and gas properties of the nearest Ultra Diffuse Galaxy (UDG) discovered so far: UGC2162 (z=0.00392; R$_{e,g}$=1.7$(\\pm$0.2) kpc; $\\mu_g(0)$=24.4$\\pm$0.1 mag/arcsec$^2$; g-i=0.33$\\pm$0.02). This galaxy, located at a distance of 12.3($\\pm$1.7) Mpc, is a member of the M77 group. UGC2162 has a stellar mass of $\\sim$2($^{+2}_{-1}$)$\\times$10$^7$ M$_\\odot$ and is embedded within a cloud of HI gas $\\sim$10 times more massive: $\\sim$1.9($\\pm$0.6)$\\times$10$^8$ M$_\\odot$. Using the width of its HI line as a dynamical proxy, the enclosed mass within the inn","authors_text":"Ignacio Trujillo, Javier Rom\\'an, Jorge S\\'anchez Almeida, Mercedes Filho","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-13T19:03:30Z","title":"The nearest ultra diffuse galaxy: UGC2162"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.03804","kind":"arxiv","version":2},"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":"sha256:0493425d8173fcc19956e7cd05f7449f0f10c1e34bca4696fbcc63e022f5e3a9","target":"record","created_at":"2026-05-18T00:49:10Z","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":"57d213bb16a703eac15c50e1bf708405dcf05cac54678a9065c73ee762fc3be2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-13T19:03:30Z","title_canon_sha256":"45fedc70bd564bde841764891d5da9df1c2e38ad6887701fb21a85f875f43f3e"},"schema_version":"1.0","source":{"id":"1701.03804","kind":"arxiv","version":2}},"canonical_sha256":"30767bcea0a11259d0e283f4bad9b2a3cefd96edb10a020a12b9dc2dbb9f069f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30767bcea0a11259d0e283f4bad9b2a3cefd96edb10a020a12b9dc2dbb9f069f","first_computed_at":"2026-05-18T00:49:10.008806Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:10.008806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JlghOUc4n4QlUFVDxoehDiwK77LH7HTZJFbf3OWyRUolzJ8ig2ufU64IraV3fSx7yF0HL+eDKH/sEvTy5wiUAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:10.009457Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.03804","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0493425d8173fcc19956e7cd05f7449f0f10c1e34bca4696fbcc63e022f5e3a9","sha256:1d58cb6bb1b5835c2f4fbd5a37157a474e377ddfd39cc319956b5b8ffc9b2f9d"],"state_sha256":"a8b5ef73b03fc9b2e335844bf1ebcfa54228713e58940f3b817d3c93b0cc3b5f"}