{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:RNNFZ6QYU3TC4CVKJAB57HLBZS","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":"ac83808b8f63f6dd1ce4a62d3b54f861244db5b4dfd6de66e0eae5cb30928ff6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-11-04T02:01:37Z","title_canon_sha256":"9de2a4cdd7f8bc0628172ebf44004c3f1c43c35df500c06b596151b029908947"},"schema_version":"1.0","source":{"id":"2211.02217","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.02217","created_at":"2026-07-05T05:57:59Z"},{"alias_kind":"arxiv_version","alias_value":"2211.02217v1","created_at":"2026-07-05T05:57:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.02217","created_at":"2026-07-05T05:57:59Z"},{"alias_kind":"pith_short_12","alias_value":"RNNFZ6QYU3TC","created_at":"2026-07-05T05:57:59Z"},{"alias_kind":"pith_short_16","alias_value":"RNNFZ6QYU3TC4CVK","created_at":"2026-07-05T05:57:59Z"},{"alias_kind":"pith_short_8","alias_value":"RNNFZ6QY","created_at":"2026-07-05T05:57:59Z"}],"graph_snapshots":[{"event_id":"sha256:cbadb3bf74d2e2fc1e428aeeb93b390cfa4ee318a8f06d38cf12f7f5eae4a65b","target":"graph","created_at":"2026-07-05T05:57:59Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2211.02217/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Although only a small fraction of stars end their lives as supernovae, all supernovae leave behind a supernova remnant (SNR), an expanding shock wave that interacts with the surrounding medium, heating the gas and seeding the cosmos with elements forged in the progenitor In this chapter, we introduce the basic properties of galactic and extragalactic SNRs (Section 2). We summarize how SNRs evolve throughout their life cycles over the course of ~10^6 yrs (Section 3). We discuss the various morphological types of SNRs and discuss the emission processes at various wavelengths.(Section 4).","authors_text":"Aya Bamba (U. Tokyo, Brian J. Williams (NASA/GSFC, Japan), USA)","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-11-04T02:01:37Z","title":"Supernova remnants: Types and evolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.02217","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:aecf6f1fc874ddb4998661914df44450475e8ffd5ce1e03d13928994f5cdbc9c","target":"record","created_at":"2026-07-05T05:57:59Z","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":"ac83808b8f63f6dd1ce4a62d3b54f861244db5b4dfd6de66e0eae5cb30928ff6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-11-04T02:01:37Z","title_canon_sha256":"9de2a4cdd7f8bc0628172ebf44004c3f1c43c35df500c06b596151b029908947"},"schema_version":"1.0","source":{"id":"2211.02217","kind":"arxiv","version":1}},"canonical_sha256":"8b5a5cfa18a6e62e0aaa4803df9d61cc9bac14e0076002d4141970dc6d4dc4f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b5a5cfa18a6e62e0aaa4803df9d61cc9bac14e0076002d4141970dc6d4dc4f1","first_computed_at":"2026-07-05T05:57:59.259501Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:57:59.259501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FYiqDLlNAXF1wkShEo9K87gDFmZbOZiOI6yYUhvVliBG0sPMw+ptI4w4GTd+Qo0Auw/y8IpEh/uM12Wcxby2BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:57:59.259996Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.02217","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aecf6f1fc874ddb4998661914df44450475e8ffd5ce1e03d13928994f5cdbc9c","sha256:cbadb3bf74d2e2fc1e428aeeb93b390cfa4ee318a8f06d38cf12f7f5eae4a65b"],"state_sha256":"b4b560279d24f1d0346d2b3a5df1d532602ed2a1119f9b9af97e9343b7146033"}