{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LCM6KJV3ZWOUA6Y6RIPOZMHQ46","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":"bbf93051d0f5710a963f7198a0292f434be67304d009f7e28f4d2d58bf6b1cf2","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-12-19T20:41:09Z","title_canon_sha256":"95e72dc7bb54f30df6a44293048369b3163389d37780887f671629d98845e854"},"schema_version":"1.0","source":{"id":"1812.08234","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.08234","created_at":"2026-05-17T23:46:53Z"},{"alias_kind":"arxiv_version","alias_value":"1812.08234v1","created_at":"2026-05-17T23:46:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.08234","created_at":"2026-05-17T23:46:53Z"},{"alias_kind":"pith_short_12","alias_value":"LCM6KJV3ZWOU","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"LCM6KJV3ZWOUA6Y6","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"LCM6KJV3","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:a082c7cd96c371061131da3ee10021fa06b466558cadbf4be25c181a3793fa60","target":"graph","created_at":"2026-05-17T23:46:53Z","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":"Infrared (IR) observations of core collapse supernovae (CCSNe) have been used to infer the mass of dust that has formed in their ejecta. A plot of inferred dust masses versus supernova (SN) ages shows a trend of increasing dust mass with time, spanning a few decades of observations. This trend has been interpreted as evidence for the slow and gradual formation of dust in CCSNe. Observationally, the trend exhibits a $ t^2$ behavior, exactly what is expected from an expanding optically thick ejecta. In this case, the observed dust resides in the infrared (IR)-thin \"photosphere\" of the ejecta, an","authors_text":"Arkaprabha Sarangi, Eli Dwek, Richard. G. Arendt","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-12-19T20:41:09Z","title":"The Evolution of Dust Opacity in Core Collapse Supernovae and the Rapid Formation of Dust in Their Ejecta"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.08234","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":"sha256:1bba899b4d5332ebe77e209cf595c4d8ce226d3eff8a280eaad76c047a94de07","target":"record","created_at":"2026-05-17T23:46:53Z","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":"bbf93051d0f5710a963f7198a0292f434be67304d009f7e28f4d2d58bf6b1cf2","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-12-19T20:41:09Z","title_canon_sha256":"95e72dc7bb54f30df6a44293048369b3163389d37780887f671629d98845e854"},"schema_version":"1.0","source":{"id":"1812.08234","kind":"arxiv","version":1}},"canonical_sha256":"5899e526bbcd9d407b1e8a1eecb0f0e7b0090d070b1c4c334532c0ae0de4131e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5899e526bbcd9d407b1e8a1eecb0f0e7b0090d070b1c4c334532c0ae0de4131e","first_computed_at":"2026-05-17T23:46:53.082223Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:53.082223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3p+AuTdJdAxHEp4Dc3UP+gJEtsuJZyB7vgclVAe3Btah++GMPSAIz/cE6mE03TfzE18maf0z1DaGnyBSAfByAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:53.082901Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.08234","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1bba899b4d5332ebe77e209cf595c4d8ce226d3eff8a280eaad76c047a94de07","sha256:a082c7cd96c371061131da3ee10021fa06b466558cadbf4be25c181a3793fa60"],"state_sha256":"604db45664479bd440e8043d7aea234b3a218fb9917db35ec9106e4ae867f52c"}