{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2Z7VXECPTEJQ3IFVIZRO4AYCYF","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":"1759322ad9becce1a44908bd85d91e36890fca6f217186589513c9d030862aff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-30T16:27:05Z","title_canon_sha256":"ae2715d3f396a85b003dd51446025e100bf564bfe311e7f09c08efd65f13dba9"},"schema_version":"1.0","source":{"id":"1210.8071","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.8071","created_at":"2026-05-18T01:53:35Z"},{"alias_kind":"arxiv_version","alias_value":"1210.8071v2","created_at":"2026-05-18T01:53:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.8071","created_at":"2026-05-18T01:53:35Z"},{"alias_kind":"pith_short_12","alias_value":"2Z7VXECPTEJQ","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2Z7VXECPTEJQ3IFV","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2Z7VXECP","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:cd86a36ee86fce38fde2c39917278d5524376b87fcf6eb252217aa87b985a5d0","target":"graph","created_at":"2026-05-18T01:53:35Z","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":"Context: Cosmic rays are thought to be accelerated at supernova remnant (SNR) shocks, but conclusive evidence is lacking. Aims: New data from ground-based gamma-ray telescopes and the Large Area Telescope on the Fermi Gamma-ray Space Telescope are used to test this hypothesis. A simple model for gamma-ray production efficiency is compared with measured gamma-ray luminosities of SNRs, and the GeV to TeV fluxes ratios of SNRs are examined for correlations with SNR ages. Methods: The supernova explosion is modeled as an expanding spherical shell of material that sweeps up matter from the surround","authors_text":"C.D. Dermer, G. Powale","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-30T16:27:05Z","title":"Gamma Rays from Cosmic Rays in Supernova Remnants"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.8071","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":"sha256:94abe2d8ea087dcf48ae225cd42c0d10d39851ae6ac41382da21b5b9cb47e745","target":"record","created_at":"2026-05-18T01:53:35Z","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":"1759322ad9becce1a44908bd85d91e36890fca6f217186589513c9d030862aff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-30T16:27:05Z","title_canon_sha256":"ae2715d3f396a85b003dd51446025e100bf564bfe311e7f09c08efd65f13dba9"},"schema_version":"1.0","source":{"id":"1210.8071","kind":"arxiv","version":2}},"canonical_sha256":"d67f5b904f99130da0b54662ee0302c176ff5051a6c86f862cc321602a4e02ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d67f5b904f99130da0b54662ee0302c176ff5051a6c86f862cc321602a4e02ab","first_computed_at":"2026-05-18T01:53:35.491280Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:35.491280Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GuX9lON736zfW3vV+Jxz7GneYI4j9ZFvVCyYfYM7XEWE8CPLNwkmzbWTSCJU8/Hse917XEDA9i0pwqhVGpvkAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:35.491895Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.8071","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94abe2d8ea087dcf48ae225cd42c0d10d39851ae6ac41382da21b5b9cb47e745","sha256:cd86a36ee86fce38fde2c39917278d5524376b87fcf6eb252217aa87b985a5d0"],"state_sha256":"f3003e08d27b76a90e3de6cee8217f7ba96d84fbc25ab55de000cc478a76b531"}