{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:3BGVQQZLXGYKQXTXPC2RW4TVR4","short_pith_number":"pith:3BGVQQZL","schema_version":"1.0","canonical_sha256":"d84d58432bb9b0a85e7778b51b72758f20d7b78170c256f42ba38d3930a8c9f6","source":{"kind":"arxiv","id":"0812.1448","version":2},"attestation_state":"computed","paper":{"title":"Origin and Nature of Dust in the Early Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Habe, E. Dwek, H. Hirashita, H. Umeda, K. Maeda, K. Nomoto, N. Tominaga, T. Kozasa, T. Nozawa, T. T. Ishii, T. T. Takeuchi","submitted_at":"2008-12-08T09:51:30Z","abstract_excerpt":"We present recent advances in theoretical studies of the formation and evolution of dust in primordial supernovae (SNe) that are considered to be the main sources of dust in the early universe. Being combined with the results of calculations of dust formation in the ejecta of Population III SNe, the investigations of the evolution of newly formed dust within supernova remnants (SNRs) show that smaller grains are predominantly destroyed by sputtering in the shocked gas, while larger grains are injected into the ambient medium. The mass of dust grains surviving the destruction in SNRs reaches up"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0812.1448","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-08T09:51:30Z","cross_cats_sorted":[],"title_canon_sha256":"37249416d37281e2068e534916928b6494b5a6c26ab78dfc266aff0164fdd9de","abstract_canon_sha256":"561a5b2206460dfdfd2b36809c938e7b3dd4d634fdf6d7bed18d22cef664d0ab"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:39:24.064809Z","signature_b64":"IEp/hodQSA2Tz3ZjWAt/ZKhfCr+B7v8Fq/driRTB7/8GRcppSeEaXpE8fQGL1VC3Xf70CXs2LUesG/n7GV9oDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d84d58432bb9b0a85e7778b51b72758f20d7b78170c256f42ba38d3930a8c9f6","last_reissued_at":"2026-07-04T15:39:24.064391Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:39:24.064391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Origin and Nature of Dust in the Early Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Habe, E. Dwek, H. Hirashita, H. Umeda, K. Maeda, K. Nomoto, N. Tominaga, T. Kozasa, T. Nozawa, T. T. Ishii, T. T. Takeuchi","submitted_at":"2008-12-08T09:51:30Z","abstract_excerpt":"We present recent advances in theoretical studies of the formation and evolution of dust in primordial supernovae (SNe) that are considered to be the main sources of dust in the early universe. Being combined with the results of calculations of dust formation in the ejecta of Population III SNe, the investigations of the evolution of newly formed dust within supernova remnants (SNRs) show that smaller grains are predominantly destroyed by sputtering in the shocked gas, while larger grains are injected into the ambient medium. The mass of dust grains surviving the destruction in SNRs reaches up"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.1448","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0812.1448/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"0812.1448","created_at":"2026-07-04T15:39:24.064453+00:00"},{"alias_kind":"arxiv_version","alias_value":"0812.1448v2","created_at":"2026-07-04T15:39:24.064453+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.1448","created_at":"2026-07-04T15:39:24.064453+00:00"},{"alias_kind":"pith_short_12","alias_value":"3BGVQQZLXGYK","created_at":"2026-07-04T15:39:24.064453+00:00"},{"alias_kind":"pith_short_16","alias_value":"3BGVQQZLXGYKQXTX","created_at":"2026-07-04T15:39:24.064453+00:00"},{"alias_kind":"pith_short_8","alias_value":"3BGVQQZL","created_at":"2026-07-04T15:39:24.064453+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3BGVQQZLXGYKQXTXPC2RW4TVR4","json":"https://pith.science/pith/3BGVQQZLXGYKQXTXPC2RW4TVR4.json","graph_json":"https://pith.science/api/pith-number/3BGVQQZLXGYKQXTXPC2RW4TVR4/graph.json","events_json":"https://pith.science/api/pith-number/3BGVQQZLXGYKQXTXPC2RW4TVR4/events.json","paper":"https://pith.science/paper/3BGVQQZL"},"agent_actions":{"view_html":"https://pith.science/pith/3BGVQQZLXGYKQXTXPC2RW4TVR4","download_json":"https://pith.science/pith/3BGVQQZLXGYKQXTXPC2RW4TVR4.json","view_paper":"https://pith.science/paper/3BGVQQZL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0812.1448&json=true","fetch_graph":"https://pith.science/api/pith-number/3BGVQQZLXGYKQXTXPC2RW4TVR4/graph.json","fetch_events":"https://pith.science/api/pith-number/3BGVQQZLXGYKQXTXPC2RW4TVR4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3BGVQQZLXGYKQXTXPC2RW4TVR4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3BGVQQZLXGYKQXTXPC2RW4TVR4/action/storage_attestation","attest_author":"https://pith.science/pith/3BGVQQZLXGYKQXTXPC2RW4TVR4/action/author_attestation","sign_citation":"https://pith.science/pith/3BGVQQZLXGYKQXTXPC2RW4TVR4/action/citation_signature","submit_replication":"https://pith.science/pith/3BGVQQZLXGYKQXTXPC2RW4TVR4/action/replication_record"}},"created_at":"2026-07-04T15:39:24.064453+00:00","updated_at":"2026-07-04T15:39:24.064453+00:00"}