{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:UPK45XFBH6D3OTCNFVCETU5INP","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":"bfba9fd21a97601089b0f14eeb2c8784187ffd50c33d5cd9b2499a29d093a01b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-03-19T22:38:20Z","title_canon_sha256":"b568a83dccdc347c11a5ebbc02740497962e5dc4e62a4696958881100f2d604f"},"schema_version":"1.0","source":{"id":"astro-ph/0203317","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0203317","created_at":"2026-07-04T14:11:57Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0203317v2","created_at":"2026-07-04T14:11:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0203317","created_at":"2026-07-04T14:11:57Z"},{"alias_kind":"pith_short_12","alias_value":"UPK45XFBH6D3","created_at":"2026-07-04T14:11:57Z"},{"alias_kind":"pith_short_16","alias_value":"UPK45XFBH6D3OTCN","created_at":"2026-07-04T14:11:57Z"},{"alias_kind":"pith_short_8","alias_value":"UPK45XFB","created_at":"2026-07-04T14:11:57Z"}],"graph_snapshots":[{"event_id":"sha256:83d104f8f9d75cf5ae02c255449c23ccc90a7727e234b1dca3e3406659655fda","target":"graph","created_at":"2026-07-04T14:11:57Z","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/astro-ph/0203317/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show that ultraviolet radiation, with wavelengths shorter than 2000 A, escaping from the disks of giant spirals could be one of the principal factors affecting the evolution of low mass satellite galaxies. We demonstrate, using a semi-qualitative model, that the Lyman continuum part of the radiation field can lead to ionization of the ISM of the dwarf galaxies through the process of photoevaporation, making the ISM virtually unobservable. The FUV part (912 < lambda < 2000 A) is shown to dominate over the internal sources of radiation for most of the Galactic dwarf spheroidals. The proposed ","authors_text":"A. Bouchard, C. Carignan, S. Mashchenko","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-03-19T22:38:20Z","title":"Impact of UV Radiation from Giant Spirals on the Evolution of Dwarf Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0203317","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":"sha256:31d9d5224db1f9acadebcd38da9a748a296071e8dffe45b9da6242528611631b","target":"record","created_at":"2026-07-04T14:11:57Z","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":"bfba9fd21a97601089b0f14eeb2c8784187ffd50c33d5cd9b2499a29d093a01b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-03-19T22:38:20Z","title_canon_sha256":"b568a83dccdc347c11a5ebbc02740497962e5dc4e62a4696958881100f2d604f"},"schema_version":"1.0","source":{"id":"astro-ph/0203317","kind":"arxiv","version":2}},"canonical_sha256":"a3d5cedca13f87b74c4d2d4449d3a86bf50091a7f535fc1cc47ecd349c539f83","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3d5cedca13f87b74c4d2d4449d3a86bf50091a7f535fc1cc47ecd349c539f83","first_computed_at":"2026-07-04T14:11:57.491653Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:11:57.491653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"27ey2XsJNkiomO2DrjqkuplTzRTpdtsFejZYXxJwLLu6Q/TkENvzp9BpsiorWo9hyq34+KLDQ5K3I81b3xnHDA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:11:57.492094Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0203317","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:31d9d5224db1f9acadebcd38da9a748a296071e8dffe45b9da6242528611631b","sha256:83d104f8f9d75cf5ae02c255449c23ccc90a7727e234b1dca3e3406659655fda"],"state_sha256":"adf7eb4c693100ab1e5621b3ba128f3b69a8831f3419706c84a683a84f67d81a"}