{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:Q2545QILZ32LKVJMQRUVAGMXQ3","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":"011f8c2cb5057b7bc1ce202d1323a9f0ca9b46f17bb7ad5e6a2f7f95e132edf4","cross_cats_sorted":["astro-ph.HE","physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-10-09T08:32:40Z","title_canon_sha256":"1856cec657808e0dc71d3dfb4d2c1ac8e0dab9f552f09bdef77dc6194bd9a141"},"schema_version":"1.0","source":{"id":"1810.03853","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.03853","created_at":"2026-05-17T23:57:39Z"},{"alias_kind":"arxiv_version","alias_value":"1810.03853v1","created_at":"2026-05-17T23:57:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.03853","created_at":"2026-05-17T23:57:39Z"},{"alias_kind":"pith_short_12","alias_value":"Q2545QILZ32L","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"Q2545QILZ32LKVJM","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"Q2545QIL","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:1c0c0cebfa3cd5a4862b353424c3c5a20d46ee54bd93b2e6e2aad8c4b5c4c1bd","target":"graph","created_at":"2026-05-17T23:57:39Z","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 compare two observations of gamma-rays before, during, and after lightning flashes initiated by upward leaders from a tower during low-altitude winter thunderstorms on the western coast of Honshu, Japan. While the two leaders appear similar, one produced a terrestrial gamma-ray flash (TGF) so bright that it paralyzed the gamma-ray detectors while it was occurring, and could be observed only via the weaker flux of neutrons created in its wake, while the other produced no detectable TGF gamma-rays at all. The ratio between the indirectly derived gamma-ray fluence for the TGF and the 95% confi","authors_text":"D. M. Smith, D. Wang, G. S. Bowers, J. Ortberg, J. R. Dwyer, M. Kamogawa, M. Stock, T. Ushio","cross_cats":["astro-ph.HE","physics.space-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-10-09T08:32:40Z","title":"Characterizing upward lightning with and without a terrestrial gamma-ray flash"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.03853","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:b9260646aff8ffb65ea87f51a8e14ebcd7335e599b31db0ded31db8dc50e216c","target":"record","created_at":"2026-05-17T23:57:39Z","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":"011f8c2cb5057b7bc1ce202d1323a9f0ca9b46f17bb7ad5e6a2f7f95e132edf4","cross_cats_sorted":["astro-ph.HE","physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-10-09T08:32:40Z","title_canon_sha256":"1856cec657808e0dc71d3dfb4d2c1ac8e0dab9f552f09bdef77dc6194bd9a141"},"schema_version":"1.0","source":{"id":"1810.03853","kind":"arxiv","version":1}},"canonical_sha256":"86bbcec10bcef4b5552c846950199786ccd853f9d31771c35e1c71cb30222c89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86bbcec10bcef4b5552c846950199786ccd853f9d31771c35e1c71cb30222c89","first_computed_at":"2026-05-17T23:57:39.736130Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:39.736130Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cYuhAaAi6+rKcaxPbl3afSOiiyZ2SrVzI21ijhCrDcveke0hc6VOikm8oISyb5jX9/9jCnJs7OQdVisIIeBdAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:39.736495Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.03853","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9260646aff8ffb65ea87f51a8e14ebcd7335e599b31db0ded31db8dc50e216c","sha256:1c0c0cebfa3cd5a4862b353424c3c5a20d46ee54bd93b2e6e2aad8c4b5c4c1bd"],"state_sha256":"83b06787bd594b11215cdf946dd2f2d24c59ea958e34409a154cb6afd5971a64"}