{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:FBPIAKNR7O6EVEAIIVYEPLDSRB","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":"49056ceef1bbb6e0e304c5da8e164d2099b58681c0eaf97a1c2765cd7b6910f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-02-10T20:09:30Z","title_canon_sha256":"7791801743630e02ec640a0bc836c2a3a3314aa21f9c82cd8718b750e491a89f"},"schema_version":"1.0","source":{"id":"1002.2198","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.2198","created_at":"2026-05-18T02:09:09Z"},{"alias_kind":"arxiv_version","alias_value":"1002.2198v1","created_at":"2026-05-18T02:09:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.2198","created_at":"2026-05-18T02:09:09Z"},{"alias_kind":"pith_short_12","alias_value":"FBPIAKNR7O6E","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"FBPIAKNR7O6EVEAI","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"FBPIAKNR","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:4cbae6a431b33d8fef5da75f5de2950300176669c9337dc3e587ea60fce53791","target":"graph","created_at":"2026-05-18T02:09:09Z","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 report observation of the supernova remnant IC443 (G189.1+3.0) with the Fermi Gamma-ray Space Telescope Large Area Telescope (LAT) in the energy band between 200MeV and 50GeV. IC443 is a shell-type supernova remnant with mixed morphology located off the outer Galactic plane where high-energy emission has been detected in the X-ray, GeV and TeV gamma-ray bands. Past observations suggest IC443 has been interacting with surrounding interstellar matter. Proximity between dense shocked molecular clouds and GeV-TeV gamma-ray emission regions detected by EGRET, MAGIC and VERITAS suggests an interp","authors_text":"A.A. Abdo, et al. (Fermi Large Area Telescope Collaboration)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-02-10T20:09:30Z","title":"Observation of Supernova Remnant IC443 with the Fermi Large Area Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.2198","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":"sha256:52ef33977e9371f5c14d7488f1baa84e7f81f8af37973c7621b5222e6a8e324b","target":"record","created_at":"2026-05-18T02:09:09Z","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":"49056ceef1bbb6e0e304c5da8e164d2099b58681c0eaf97a1c2765cd7b6910f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-02-10T20:09:30Z","title_canon_sha256":"7791801743630e02ec640a0bc836c2a3a3314aa21f9c82cd8718b750e491a89f"},"schema_version":"1.0","source":{"id":"1002.2198","kind":"arxiv","version":1}},"canonical_sha256":"285e8029b1fbbc4a9008457047ac72884d8f6298a1778034abd0123392e96b60","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"285e8029b1fbbc4a9008457047ac72884d8f6298a1778034abd0123392e96b60","first_computed_at":"2026-05-18T02:09:09.822738Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:09:09.822738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CE4cS/mIQYn8S4jC0bGojfrMVwcME6deHvw5ybk1q2nd9mqgytsBp76vbno5ITkuaRaQ0nRjtTQ0j23VaG/lCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:09:09.823484Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.2198","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:52ef33977e9371f5c14d7488f1baa84e7f81f8af37973c7621b5222e6a8e324b","sha256:4cbae6a431b33d8fef5da75f5de2950300176669c9337dc3e587ea60fce53791"],"state_sha256":"6646e8cfc73d9794d5126a1e7e6cfd71cc86c36c500387f1f6c2277564c455e0"}