{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:RSFEERSDOTEVUZD54MSR7POXIP","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":"12da0325ec1ae13d76a5f3db85ac513df3f845fd3a4567ec92c741584d1aca7a","cross_cats_sorted":["astro-ph.CO","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-10-15T13:12:06Z","title_canon_sha256":"7ec6236302efbd8f98886f61d9ab186fec3e33ca2943eddb224e4e38e3cfc41d"},"schema_version":"1.0","source":{"id":"1510.04519","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.04519","created_at":"2026-05-18T01:18:57Z"},{"alias_kind":"arxiv_version","alias_value":"1510.04519v2","created_at":"2026-05-18T01:18:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.04519","created_at":"2026-05-18T01:18:57Z"},{"alias_kind":"pith_short_12","alias_value":"RSFEERSDOTEV","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"RSFEERSDOTEVUZD5","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"RSFEERSD","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:8b7fe5bc41cbb507481f7440d9077c7f6b6e79bc82c186c6dc7b02578243fb49","target":"graph","created_at":"2026-05-18T01:18:57Z","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":"The Korea Invisible Mass Search (KIMS) collaboration has developed low-background NaI(Tl) crystals that are suitable for the direct detection of WIMP dark matter. With experience built on the KIMS-CsI programs, the KIMS-NaI experiment will consist of a 200~kg NaI(Tl) crystal array surrounded by layers of shielding structures and will be operated at the Yangyang underground laboratory. The goal is to provide an unambiguous test of the DAMA/LIBRA's annual modulation signature. Measurements of six prototype crystals show progress in the reduction of internal contaminations of radioisotopes. Based","authors_text":"C. Ha, D.S. Leonard, E.J. Jeon, G. Adhikari, H.J. Kim, H.K. Park, H.O. Kim, H.S. Lee, H.S. Park, H.W. Joo, I.S. Hahn, J.H. Lee, J.H. So, J. Li, K.S. Park, K.W. Kim, M.H. Lee, N.Y. Kim, P. Adhikari, S. Choi, S.K. Kim, S.L. Olsen, S.Y. Oh, W.G. Kang, Y.D. Kim, Y.H. Kim, Y.S. Yoon","cross_cats":["astro-ph.CO","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-10-15T13:12:06Z","title":"Understanding internal backgrounds of NaI(Tl) crystals toward a 200~kg array for the KIMS-NaI experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.04519","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":"sha256:680e6939a8b4bae7caabf64abba07cb8bc1392c2e027a68bdf045408e1fa9f42","target":"record","created_at":"2026-05-18T01:18:57Z","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":"12da0325ec1ae13d76a5f3db85ac513df3f845fd3a4567ec92c741584d1aca7a","cross_cats_sorted":["astro-ph.CO","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-10-15T13:12:06Z","title_canon_sha256":"7ec6236302efbd8f98886f61d9ab186fec3e33ca2943eddb224e4e38e3cfc41d"},"schema_version":"1.0","source":{"id":"1510.04519","kind":"arxiv","version":2}},"canonical_sha256":"8c8a42464374c95a647de3251fbdd743f7b7d874da80a1659da3d004f4918546","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8c8a42464374c95a647de3251fbdd743f7b7d874da80a1659da3d004f4918546","first_computed_at":"2026-05-18T01:18:57.202372Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:57.202372Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LsKyduq+1lWFAhrpADisAttDhTy6W5u1Ssx0+Ys+zNT+aB2v0Qu4GCY4HnuIGHCXv+6zYxWdXDq5I4pmiZnjCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:57.202868Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.04519","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:680e6939a8b4bae7caabf64abba07cb8bc1392c2e027a68bdf045408e1fa9f42","sha256:8b7fe5bc41cbb507481f7440d9077c7f6b6e79bc82c186c6dc7b02578243fb49"],"state_sha256":"6db25eab03dade4dbf037e86b162f2c1eab35f72c3a983c026fb2c8dd07ad60f"}