{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:BTSNPLGNGZVC52S6FY4VAQQ76Y","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":"62c497b3af51f63153955b8914769d7c6ec707ba978707bea39140494289b51a","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-06-01T12:13:37Z","title_canon_sha256":"7d6b069c3b4625b839f9214cc862adec8a17610ad882bf6c77a4551ffc02a78d"},"schema_version":"1.0","source":{"id":"1906.00212","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.00212","created_at":"2026-05-17T23:39:30Z"},{"alias_kind":"arxiv_version","alias_value":"1906.00212v2","created_at":"2026-05-17T23:39:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.00212","created_at":"2026-05-17T23:39:30Z"},{"alias_kind":"pith_short_12","alias_value":"BTSNPLGNGZVC","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"BTSNPLGNGZVC52S6","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"BTSNPLGN","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:6a9fe19933df3cbc6dd43632ade524fa98a2876643a2d95f91925a4e00540b8a","target":"graph","created_at":"2026-05-17T23:39:30Z","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":"In order to understand the chemical properties and environmental impacts of low-solubility Cs-rich microparticles (CsMPs) derived from the FDNPP, the CsMPs collected from Tokyo were investigated at the atomic scale using high-resolution transmission electron microscopy (HRTEM) and dissolution experiments were performed on the air filters. Remarkably, CsMPs 0.58-2.0 micrometer in size constituted 80%-89% of the total Cs radioactivity during the initial fallout events on 15th March, 2011. The CsMPs from Tokyo and Fukushima exhibit the same texture at the nanoscale: aggregates of Zn-Fe-oxide nano","authors_text":"Asumi Ochiai, Bernd Grambow, Genki Furuki, Kenji Nanba, Rodney C. Ewing, Satoshi Utsunomiya, Shinya Yamasaki","cross_cats":["physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-06-01T12:13:37Z","title":"Caesium fallout in Tokyo on 15th March, 2011 is dominated by highly radioactive, caesium-rich microparticles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.00212","kind":"arxiv","version":2},"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":"sha256:6ece67f676a08045e2cf87e0f51bf9512893fbbea66e737621b383a5f21c3f0d","target":"record","created_at":"2026-05-17T23:39:30Z","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":"62c497b3af51f63153955b8914769d7c6ec707ba978707bea39140494289b51a","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-06-01T12:13:37Z","title_canon_sha256":"7d6b069c3b4625b839f9214cc862adec8a17610ad882bf6c77a4551ffc02a78d"},"schema_version":"1.0","source":{"id":"1906.00212","kind":"arxiv","version":2}},"canonical_sha256":"0ce4d7accd366a2eea5e2e3950421ff61fe806151c535bdb7896287bb74a5e73","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ce4d7accd366a2eea5e2e3950421ff61fe806151c535bdb7896287bb74a5e73","first_computed_at":"2026-05-17T23:39:30.076651Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:30.076651Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vOG8AhRP3NPBm3Vcs+5DwbI91UTLDeosw7+X5l8rq77oS/sotGazE0l8cYcWQVHvwpNR4g+45elsY2IPBmtQAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:30.077102Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.00212","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ece67f676a08045e2cf87e0f51bf9512893fbbea66e737621b383a5f21c3f0d","sha256:6a9fe19933df3cbc6dd43632ade524fa98a2876643a2d95f91925a4e00540b8a"],"state_sha256":"d2146d08bcd052049d5d8fedc03de3cc1e39ed4980a5c2f3d426dc4dd60ae05e"}