{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:QHLXL5TG73KXUKIUEDWJUG3K6K","short_pith_number":"pith:QHLXL5TG","schema_version":"1.0","canonical_sha256":"81d775f666fed57a291420ec9a1b6af29fc473f393fb0f73a3ed9e8c73a90ea5","source":{"kind":"arxiv","id":"2109.15238","version":2},"attestation_state":"computed","paper":{"title":"Multiple accelerated particle populations in the Cygnus Loop with Fermi-LAT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. D'A\\`i, A. Tutone, F. Acero, G. Cusumano, J. Ballet","submitted_at":"2021-09-30T16:17:01Z","abstract_excerpt":"The Cygnus Loop (G74.0-8.5) is a very well-known nearby supernova remnant (SNR) in our Galaxy. Thanks to its large size, brightness, and angular offset from the Galactic plane, it has been studied in detail from radio to $\\gamma$-ray emission. The $\\gamma$ -rays probe the populations of energetic particles and their acceleration mechanisms at low shock speeds. We present an analysis of the $\\gamma$-ray emission detected by the Large Area Telescope on board the Fermi Gamma-ray Space Telescope over 11 years in the region of the Cygnus Loop. We performed detailed morphological and spectral studie"},"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":"2109.15238","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-09-30T16:17:01Z","cross_cats_sorted":[],"title_canon_sha256":"31a27570e13ec771824c1921845352992ceae5d29981aaa0acb99f8b1e6ad2e8","abstract_canon_sha256":"6dc77b45423fba37747188fce004681ca3bba9e3813bebcadf37e98283d351ee"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:40:48.459961Z","signature_b64":"miPLE9XQ4JqwSFQ1Zz8r8eL+smo4IvrwGa6iZXLOKczfbgrdQziYu9GnCX02+OCUDKKtdWJ7X8D3CDul1+jzDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"81d775f666fed57a291420ec9a1b6af29fc473f393fb0f73a3ed9e8c73a90ea5","last_reissued_at":"2026-07-05T03:40:48.459409Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:40:48.459409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multiple accelerated particle populations in the Cygnus Loop with Fermi-LAT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. D'A\\`i, A. Tutone, F. Acero, G. Cusumano, J. Ballet","submitted_at":"2021-09-30T16:17:01Z","abstract_excerpt":"The Cygnus Loop (G74.0-8.5) is a very well-known nearby supernova remnant (SNR) in our Galaxy. Thanks to its large size, brightness, and angular offset from the Galactic plane, it has been studied in detail from radio to $\\gamma$-ray emission. The $\\gamma$ -rays probe the populations of energetic particles and their acceleration mechanisms at low shock speeds. We present an analysis of the $\\gamma$-ray emission detected by the Large Area Telescope on board the Fermi Gamma-ray Space Telescope over 11 years in the region of the Cygnus Loop. We performed detailed morphological and spectral studie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.15238","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/2109.15238/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":"2109.15238","created_at":"2026-07-05T03:40:48.459467+00:00"},{"alias_kind":"arxiv_version","alias_value":"2109.15238v2","created_at":"2026-07-05T03:40:48.459467+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.15238","created_at":"2026-07-05T03:40:48.459467+00:00"},{"alias_kind":"pith_short_12","alias_value":"QHLXL5TG73KX","created_at":"2026-07-05T03:40:48.459467+00:00"},{"alias_kind":"pith_short_16","alias_value":"QHLXL5TG73KXUKIU","created_at":"2026-07-05T03:40:48.459467+00:00"},{"alias_kind":"pith_short_8","alias_value":"QHLXL5TG","created_at":"2026-07-05T03:40:48.459467+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/QHLXL5TG73KXUKIUEDWJUG3K6K","json":"https://pith.science/pith/QHLXL5TG73KXUKIUEDWJUG3K6K.json","graph_json":"https://pith.science/api/pith-number/QHLXL5TG73KXUKIUEDWJUG3K6K/graph.json","events_json":"https://pith.science/api/pith-number/QHLXL5TG73KXUKIUEDWJUG3K6K/events.json","paper":"https://pith.science/paper/QHLXL5TG"},"agent_actions":{"view_html":"https://pith.science/pith/QHLXL5TG73KXUKIUEDWJUG3K6K","download_json":"https://pith.science/pith/QHLXL5TG73KXUKIUEDWJUG3K6K.json","view_paper":"https://pith.science/paper/QHLXL5TG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2109.15238&json=true","fetch_graph":"https://pith.science/api/pith-number/QHLXL5TG73KXUKIUEDWJUG3K6K/graph.json","fetch_events":"https://pith.science/api/pith-number/QHLXL5TG73KXUKIUEDWJUG3K6K/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QHLXL5TG73KXUKIUEDWJUG3K6K/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QHLXL5TG73KXUKIUEDWJUG3K6K/action/storage_attestation","attest_author":"https://pith.science/pith/QHLXL5TG73KXUKIUEDWJUG3K6K/action/author_attestation","sign_citation":"https://pith.science/pith/QHLXL5TG73KXUKIUEDWJUG3K6K/action/citation_signature","submit_replication":"https://pith.science/pith/QHLXL5TG73KXUKIUEDWJUG3K6K/action/replication_record"}},"created_at":"2026-07-05T03:40:48.459467+00:00","updated_at":"2026-07-05T03:40:48.459467+00:00"}