{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:SLIFEIGVDDRVIFVGPCKJFALOIP","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":"e0c07851189ceb6afbf32ab54a8a83a085823ae423e0b982b1788780bec41b15","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-12-20T18:28:28Z","title_canon_sha256":"cd26ff20d9a759d96cf8b8c77c57ec0f12c0895dd9507f745d3a0fb67bc9008e"},"schema_version":"1.0","source":{"id":"2112.10731","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.10731","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"arxiv_version","alias_value":"2112.10731v1","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.10731","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"pith_short_12","alias_value":"SLIFEIGVDDRV","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"pith_short_16","alias_value":"SLIFEIGVDDRVIFVG","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"pith_short_8","alias_value":"SLIFEIGV","created_at":"2026-07-05T05:01:17Z"}],"graph_snapshots":[{"event_id":"sha256:02ba8f011f7fb7a0ee564ea35393a6fbbfbb1de329d3de76c315937bf514b920","target":"graph","created_at":"2026-07-05T05:01:17Z","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/2112.10731/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Giant low surface brightness galaxies (gLSBGs) with the disk radii of up to 130 kpc represent a challenge for currently accepted theories of galaxy formation and evolution, because it is difficult to build-up such large dynamically cold systems via mergers preserving extended disks. We summarize the in-depth study of the sample of 7 gLSBGs based on the results of the performed spectral long-slit observations at the Russian 6-m BTA telescope of SAO RAS, surface photometry and HI data available in literature. Our study revealed that most gLSBGs do not deviate from the Tully-Fisher relation. We d","authors_text":"Anastasia Kasparova, Anna Saburova, Igor Chilingarian, Ivan Katkov, Kirill Grishin, Olga Sil'chenko, Roman Uklein","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-12-20T18:28:28Z","title":"Observational insights on the formation scenarios of giant low surface brightness galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.10731","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:de85c1a8550376d519a05fbe9d581a00c1f852f13547a81f75bd09243ca93f1d","target":"record","created_at":"2026-07-05T05:01:17Z","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":"e0c07851189ceb6afbf32ab54a8a83a085823ae423e0b982b1788780bec41b15","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-12-20T18:28:28Z","title_canon_sha256":"cd26ff20d9a759d96cf8b8c77c57ec0f12c0895dd9507f745d3a0fb67bc9008e"},"schema_version":"1.0","source":{"id":"2112.10731","kind":"arxiv","version":1}},"canonical_sha256":"92d05220d518e35416a6789492816e43d4a8d7aea10dd06544adb6704a0bb6ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92d05220d518e35416a6789492816e43d4a8d7aea10dd06544adb6704a0bb6ce","first_computed_at":"2026-07-05T05:01:17.553925Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:01:17.553925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HXMQtiQAvLVO6dH+oqR7XqGEJDPwUgWzhAi1hlDGZN6Kum70hx6HZX7GHyh3myxzd+msKsjyRweS2kgK+KmDDA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:01:17.554894Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.10731","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de85c1a8550376d519a05fbe9d581a00c1f852f13547a81f75bd09243ca93f1d","sha256:02ba8f011f7fb7a0ee564ea35393a6fbbfbb1de329d3de76c315937bf514b920"],"state_sha256":"31d8c0046fd491d2d2a41bda8f5e8a7b83d40bceb489305abb57daa85ae8faba"}