{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:VZSWEMSPIGIQPC5664TP2YF4HV","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":"d9c245205f206a7c7eb28061458d79be7c02f779047f2283f684201a99189cb5","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-03-02T21:00:10Z","title_canon_sha256":"3f78ac48ca74cfb9b8085d429d316e6b88c3d6f06a2ae629731ca787b63e0d8c"},"schema_version":"1.0","source":{"id":"1603.00883","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.00883","created_at":"2026-05-18T01:18:36Z"},{"alias_kind":"arxiv_version","alias_value":"1603.00883v1","created_at":"2026-05-18T01:18:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.00883","created_at":"2026-05-18T01:18:36Z"},{"alias_kind":"pith_short_12","alias_value":"VZSWEMSPIGIQ","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VZSWEMSPIGIQPC56","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VZSWEMSP","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:b4dea1094864f119a5a7ac99f0b4b58645513a5ebee601d72af1c0f497a3f906","target":"graph","created_at":"2026-05-18T01:18:36Z","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":"Sgr B2 is a well-known star forming molecular cloud complex in the Galactic center region showing evidence of high energy activity as traced by the K$\\alpha$ neutral FeI line at 6.4 keV, as well as GeV and TeV $\\gamma$-ray emission. Here we present VLA and GMRT observations with respective resolutions of $\\approx3.5\"\\times1.2\"$ and 25$\"\\times25\"$ and report the detection of an OH(1720 MHz) maser, with no accompanying OH 1665, 1667 and 1612 MHz maser emission. The maser coincides with a 150 MHz nonthermal radio source in Sgr B2(M). This rare class of OH(1720 MHz) masers or the so-called superno","authors_text":"F. Yusef-Zadeh, H. Intema, M. Wardle, W. Cotton","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-03-02T21:00:10Z","title":"An OH(1720 MHz) Maser and a Nonthermal Radio Source in Sgr B2(M): A SNR--Molecular Cloud Interaction Site?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.00883","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":"sha256:018d7419c5cf21d5fccc4b446e4ce1871bf628dae6e7d72e09ce2cd614c988f6","target":"record","created_at":"2026-05-18T01:18:36Z","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":"d9c245205f206a7c7eb28061458d79be7c02f779047f2283f684201a99189cb5","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-03-02T21:00:10Z","title_canon_sha256":"3f78ac48ca74cfb9b8085d429d316e6b88c3d6f06a2ae629731ca787b63e0d8c"},"schema_version":"1.0","source":{"id":"1603.00883","kind":"arxiv","version":1}},"canonical_sha256":"ae6562324f4191078bbef726fd60bc3d4e4f45ed783bc84e672b8bf281f099bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae6562324f4191078bbef726fd60bc3d4e4f45ed783bc84e672b8bf281f099bd","first_computed_at":"2026-05-18T01:18:36.916856Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:36.916856Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Kaf+wWd/GNh+eSB5wnvw9qYth1XvhCZOUQm+3ROWP7vCf5LwmhSEf8jvqcgxMcIZXeycSHTKNdmPWwmY1KyECA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:36.917362Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.00883","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:018d7419c5cf21d5fccc4b446e4ce1871bf628dae6e7d72e09ce2cd614c988f6","sha256:b4dea1094864f119a5a7ac99f0b4b58645513a5ebee601d72af1c0f497a3f906"],"state_sha256":"e7ef21eacef14ad535782f81858659580e5cce78144a6f2fe18b338fbed30878"}