{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:BRYJLRROAUZWE7FET63PX2LCEH","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":"fc5d77f5f58a30f5eab4cfa4b79be5b5b7b62ee712a77f32a3e0e04da23aa07d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-26T18:18:55Z","title_canon_sha256":"00d281d68e5198edfdaa83bc456095f59816f2fbb1a23852b078045241826e2c"},"schema_version":"1.0","source":{"id":"0904.4046","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.4046","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"arxiv_version","alias_value":"0904.4046v1","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.4046","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"pith_short_12","alias_value":"BRYJLRROAUZW","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BRYJLRROAUZWE7FE","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BRYJLRRO","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:606e69597a9ffacaf26673a90ee74788465782f0a2a8b403ed93aecc8708ef17","target":"graph","created_at":"2026-05-18T02:13:57Z","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"},"paper":{"abstract_excerpt":"Dwarf galaxies tend to have redder [3.6 micron] - [4.5 micron] Spitzer broadband colors than spirals. To investigate this effect, for a large sample of dwarf galaxies we combine Spitzer fluxes with data at other wavelengths and compare to population synthesis models. Lower metallicity systems are found to have redder [3.6] - [4.5] colors on average, but with considerable scatter. The observed range in [3.6] - [4.5] color is too large to be accounted for solely by variations in stellar colors due to age or metallicity differences; interstellar effects must contribute as well. For the reddest sy","authors_text":"Beverly J. Smith (ETSU), Mark Hancock (UC Riverside)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-26T18:18:55Z","title":"The Origin of the 4.5 micron Excess from Dwarf Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.4046","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:f44f1b5b4388dc98b188b11739968d7c34d02941a4bea74e3dcb7df1e61facc0","target":"record","created_at":"2026-05-18T02:13:57Z","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":"fc5d77f5f58a30f5eab4cfa4b79be5b5b7b62ee712a77f32a3e0e04da23aa07d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-26T18:18:55Z","title_canon_sha256":"00d281d68e5198edfdaa83bc456095f59816f2fbb1a23852b078045241826e2c"},"schema_version":"1.0","source":{"id":"0904.4046","kind":"arxiv","version":1}},"canonical_sha256":"0c7095c62e0533627ca49fb6fbe96221d1d270f8ecced8df1617f6c0917192c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c7095c62e0533627ca49fb6fbe96221d1d270f8ecced8df1617f6c0917192c7","first_computed_at":"2026-05-18T02:13:57.269671Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:57.269671Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VqpcKC6OrnLqL3ot/LKSHnFBUliZdC/GLhjXO+/ZcitD96bHAXWna0IOPhhP8KHG+ajlYFhk0hrpIU5kIhDlCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:57.270390Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.4046","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f44f1b5b4388dc98b188b11739968d7c34d02941a4bea74e3dcb7df1e61facc0","sha256:606e69597a9ffacaf26673a90ee74788465782f0a2a8b403ed93aecc8708ef17"],"state_sha256":"d379c9b09abb33f25766d92c7e899d95be426bc31fcdddabd5b01e0caeed264b"}