{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:BJ76YJSV4PZZJIGSOTROBDKMA4","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":"b1fb558d2802ba1d9a5b4a27303d9e89fbd0ad4f7bd22feb102b36e49e041e92","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-02T12:18:25Z","title_canon_sha256":"9c1ac676938179ac014f3b03962b8a593fb618f541b6d7a5e66d14c262447b1f"},"schema_version":"1.0","source":{"id":"0909.0406","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.0406","created_at":"2026-05-18T02:12:00Z"},{"alias_kind":"arxiv_version","alias_value":"0909.0406v1","created_at":"2026-05-18T02:12:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.0406","created_at":"2026-05-18T02:12:00Z"},{"alias_kind":"pith_short_12","alias_value":"BJ76YJSV4PZZ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BJ76YJSV4PZZJIGS","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BJ76YJSV","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:b26ca09a6062b486325e0cd1a33ee0c3c02aa6259f3771f4e76d7eecc756dd06","target":"graph","created_at":"2026-05-18T02:12:00Z","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":"(abridged) MGRO J2019+37 is an unidentified extended source of VHE gamma-rays originally reported by the Milagro Collaboration as the brightest TeV source in the Cygnus region. Its extended emission could be powered by either a single or several sources. The GeV pulsar AGL J2020.5+3653, discovered by AGILE and associated with PSR J2021+3651, could contribute to the emission from MGRO J2019+37, although extrapolation of the GeV spectrum does not explain the detected multi-TeV flux. Our aim is to identify radio and NIR sources in the field of the extended TeV source MGRO J2019+37, and study pote","authors_text":"A.J. Munoz-Arjonilla, C.H. Ishwara-Chandra, G.E. Romero, J.Marti, J. Moldon, J.M. Paredes, J.R. Sanchez-Sutil, M. Peracaula, M. Ribo, P. Bordas, P.L. Luque-Escamilla, V. Bosch-Ramon, V. Zabalza","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-02T12:18:25Z","title":"Radio continuum and near-infrared study of the MGRO J2019+37 region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.0406","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:a0da0ff717989623b8222aa139187001eba3c8b4e3b401a49e2c6b40e9c4bb2a","target":"record","created_at":"2026-05-18T02:12:00Z","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":"b1fb558d2802ba1d9a5b4a27303d9e89fbd0ad4f7bd22feb102b36e49e041e92","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-02T12:18:25Z","title_canon_sha256":"9c1ac676938179ac014f3b03962b8a593fb618f541b6d7a5e66d14c262447b1f"},"schema_version":"1.0","source":{"id":"0909.0406","kind":"arxiv","version":1}},"canonical_sha256":"0a7fec2655e3f394a0d274e2e08d4c07031622cf1de6cdf2c67e334f2a932690","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a7fec2655e3f394a0d274e2e08d4c07031622cf1de6cdf2c67e334f2a932690","first_computed_at":"2026-05-18T02:12:00.824670Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:00.824670Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KkepVMQIyKYrzHanOIgZRT/1WEkpouTRUSdjo+zq2Bkf4m6z5LB7KQxbydT0xWrXetEy1ABR8O5fsbpgAuRlCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:00.825254Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.0406","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0da0ff717989623b8222aa139187001eba3c8b4e3b401a49e2c6b40e9c4bb2a","sha256:b26ca09a6062b486325e0cd1a33ee0c3c02aa6259f3771f4e76d7eecc756dd06"],"state_sha256":"aa2ffd01136c23275a12c54a72ab18ed9028dfd781961dc3e3db1994eb54e580"}