{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:34MEOQ7GSIBNX7XXKOLBMEKNJA","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":"1676803abff3158e3dda0e133c1641dc3aa09616ba1ea3b27eed8432fe460d46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-07-15T06:10:17Z","title_canon_sha256":"7f554ddee34f83b61f8cc3fd629d7ab7f82bd50d00e13eb5ea95e9b274983c1e"},"schema_version":"1.0","source":{"id":"1507.04092","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.04092","created_at":"2026-05-18T01:33:42Z"},{"alias_kind":"arxiv_version","alias_value":"1507.04092v1","created_at":"2026-05-18T01:33:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.04092","created_at":"2026-05-18T01:33:42Z"},{"alias_kind":"pith_short_12","alias_value":"34MEOQ7GSIBN","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_16","alias_value":"34MEOQ7GSIBNX7XX","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_8","alias_value":"34MEOQ7G","created_at":"2026-05-18T12:29:02Z"}],"graph_snapshots":[{"event_id":"sha256:8b1086d97240a1756da5aa8c3021eab354a6bf85679ea2a5ebfbda7c66e6be68","target":"graph","created_at":"2026-05-18T01:33:42Z","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 star-forming galaxies sample in the nearby Universe (0.02<z<0.10) selected from the SDSS (DR7) and GALEX all-sky survey (GR5), we present a new empirical calibration for predicting dust extinction of galaxies from H-alpha-to-FUV flux ratio. We find that the H-alpha dust extinction (A(Ha)) derived with H-alpha/H-beta ratio (Balmer decrement) increases with increasing H-alpha/UV ratio as expected, but there remains a considerable scatter around the relation, which is largely dependent on stellar mass and/or H-alpha equivalent width (EW(Ha)). At fixed H-alpha/UV ratio, galaxies with higher ","authors_text":"Fumi Egusa, Ichi Tanaka, Issei Yamamura, Ken-ichi Tadaki, Masao Hayashi, Nagisa Oi, Rhythm Shimakawa, Satoshi Takita, Sin'itirou Makiuti, Tadayuki Kodama, Yusei Koyama","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-07-15T06:10:17Z","title":"Predicting dust extinction properties of star-forming galaxies from H-alpha/UV ratio"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.04092","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":"sha256:2e3e87148b5e3134bcd5b3920f01af81d9b0df0c78e059660a1bf864d8b9e614","target":"record","created_at":"2026-05-18T01:33:42Z","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":"1676803abff3158e3dda0e133c1641dc3aa09616ba1ea3b27eed8432fe460d46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-07-15T06:10:17Z","title_canon_sha256":"7f554ddee34f83b61f8cc3fd629d7ab7f82bd50d00e13eb5ea95e9b274983c1e"},"schema_version":"1.0","source":{"id":"1507.04092","kind":"arxiv","version":1}},"canonical_sha256":"df184743e69202dbfef7539616114d4808fbfb2d235e660b6e504eaf4909dbc3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"df184743e69202dbfef7539616114d4808fbfb2d235e660b6e504eaf4909dbc3","first_computed_at":"2026-05-18T01:33:42.497229Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:42.497229Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xsuBnd72VTqrFblnUUyutUPWhRgYhdMMclzMJ+rEo6kWLluCqkNGnmPatzBeMl1aiMd9qH3oib/ZGJlqz5zDCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:42.497635Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.04092","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2e3e87148b5e3134bcd5b3920f01af81d9b0df0c78e059660a1bf864d8b9e614","sha256:8b1086d97240a1756da5aa8c3021eab354a6bf85679ea2a5ebfbda7c66e6be68"],"state_sha256":"b08605bbc601f5bb950a4e2b52db8e7922d1a63dc1b63450e5a3476149c67b96"}