{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:G4GVHZ2SAMJQPO77JZ5DZ6KO6Z","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":"deee0a63000eb7ffc71cc12ed6ba7c58c6ddfa5b49bb7011fe38bfd09c4c81d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-17T17:44:30Z","title_canon_sha256":"088a7a3abb0472ce203157ed9eb542eee7351a94e7371a015a0e0dffc6cc28d4"},"schema_version":"1.0","source":{"id":"1511.05487","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.05487","created_at":"2026-05-18T01:16:20Z"},{"alias_kind":"arxiv_version","alias_value":"1511.05487v2","created_at":"2026-05-18T01:16:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.05487","created_at":"2026-05-18T01:16:20Z"},{"alias_kind":"pith_short_12","alias_value":"G4GVHZ2SAMJQ","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"G4GVHZ2SAMJQPO77","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"G4GVHZ2S","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:f5f5e9375e94d845bc2bb4f313309d01a8d53f7de8cc3e4806c1df95e108b993","target":"graph","created_at":"2026-05-18T01:16:20Z","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":"We study the dust evolution in the supernova remnant Cassiopeia A. We follow the processing of dust grains that formed in the Type II-b supernova by modelling the sputtering of grains. The dust is located in dense ejecta clumps crossed by the reverse shock. Further sputtering in the inter-clump medium once the clumps are disrupted by the reverse shock is investigated. The dust evolution in the dense ejecta clumps of Type II-P supernovae and their remnants is also studied. We study oxygen-rich clumps that describe the ejecta oxygen core, and carbon-rich clumps that correspond to the outermost c","authors_text":"Chiara Biscaro, Isabelle Cherchneff","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-17T17:44:30Z","title":"Molecules and dust in Cassiopeia A: II - Dust sputtering and diagnosis of dust survival in supernova remnants"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.05487","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":"sha256:7b3276ba55521f7b133a1ad44e6d9e051a7963b8dd113e7b61661a6474906a7b","target":"record","created_at":"2026-05-18T01:16:20Z","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":"deee0a63000eb7ffc71cc12ed6ba7c58c6ddfa5b49bb7011fe38bfd09c4c81d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-17T17:44:30Z","title_canon_sha256":"088a7a3abb0472ce203157ed9eb542eee7351a94e7371a015a0e0dffc6cc28d4"},"schema_version":"1.0","source":{"id":"1511.05487","kind":"arxiv","version":2}},"canonical_sha256":"370d53e752031307bbff4e7a3cf94ef67a86afa17c7fba125c7a4aef965c21bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"370d53e752031307bbff4e7a3cf94ef67a86afa17c7fba125c7a4aef965c21bc","first_computed_at":"2026-05-18T01:16:20.169456Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:16:20.169456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8MogroVcLLstvjn1iKxMjjy0VTpLoOFqcOHOWuOlKK5olYLh0VwOdscjDqkGs/NrcoEVrTgNsOXfgaK4X6UYBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:16:20.170039Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.05487","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b3276ba55521f7b133a1ad44e6d9e051a7963b8dd113e7b61661a6474906a7b","sha256:f5f5e9375e94d845bc2bb4f313309d01a8d53f7de8cc3e4806c1df95e108b993"],"state_sha256":"3ef842b36029c3468cac1f971bc575e520be6f1855ccfb375018b7a4f203c2b6"}