{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MSWCVYD6TKMURMDGLY7J3RXPRN","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":"8f1df1a178fbf356f4d4c3e3d07e54e6218117f3ca1f036183089f6dc863b368","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-10T00:08:31Z","title_canon_sha256":"06a23c8f56f07eda72d4fb0645c3a49d8015cc1837742a64b8b66f962faa964c"},"schema_version":"1.0","source":{"id":"1808.03376","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.03376","created_at":"2026-07-05T03:26:11Z"},{"alias_kind":"arxiv_version","alias_value":"1808.03376v1","created_at":"2026-07-05T03:26:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03376","created_at":"2026-07-05T03:26:11Z"},{"alias_kind":"pith_short_12","alias_value":"MSWCVYD6TKMU","created_at":"2026-07-05T03:26:11Z"},{"alias_kind":"pith_short_16","alias_value":"MSWCVYD6TKMURMDG","created_at":"2026-07-05T03:26:11Z"},{"alias_kind":"pith_short_8","alias_value":"MSWCVYD6","created_at":"2026-07-05T03:26:11Z"}],"graph_snapshots":[{"event_id":"sha256:d70a989fb7798e93da72b22291af7f9e8c68c130a24959068bfcc87534af4edd","target":"graph","created_at":"2026-07-05T03:26:11Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1808.03376/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"High-purity germanium (HPGe) detectors are widely used for the measurement of the low concentrated radioactivities. For the Super-Kamiokande-Gadolinium project, the concentration of radium in Gd$_2$(SO$_4$)$_3{\\cdot}$8H$_2$O is determined by using HPGe detectors. The amount of the sample is generally limited by the size of the sample space of a HPGe detector. This leads the limitation of the detector efficiency. A new method of chemical extraction using the molecular recognition resin was developed to minimize this problem. Using the developed method, radium could be extracted from Gd$_2$(SO$_","authors_text":"K. Abe, K. Ichimura, M. Ikeda, S. Ito, Y. Kishimoto, Y. Takaku","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-10T00:08:31Z","title":"Development of the measurement for radium using germanium detector with molecular recognition resin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03376","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":"sha256:5fc6dcf46b935cc153bf40565fc568c6576d295b30ed72f2130f9e140915b6dd","target":"record","created_at":"2026-07-05T03:26:11Z","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":"8f1df1a178fbf356f4d4c3e3d07e54e6218117f3ca1f036183089f6dc863b368","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-10T00:08:31Z","title_canon_sha256":"06a23c8f56f07eda72d4fb0645c3a49d8015cc1837742a64b8b66f962faa964c"},"schema_version":"1.0","source":{"id":"1808.03376","kind":"arxiv","version":1}},"canonical_sha256":"64ac2ae07e9a9948b0665e3e9dc6ef8b59b8bce8ef39a42e458617b1697f516a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64ac2ae07e9a9948b0665e3e9dc6ef8b59b8bce8ef39a42e458617b1697f516a","first_computed_at":"2026-07-05T03:26:11.523077Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:26:11.523077Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6oFxZPwfKClX+LNdBvc3/yM1ZIm6YjQ+qmLpsu4l2wbRhcocriaiQEhtS7aSvxwSxLABHADfc0OMdt/AZAkUCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:26:11.523517Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.03376","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5fc6dcf46b935cc153bf40565fc568c6576d295b30ed72f2130f9e140915b6dd","sha256:d70a989fb7798e93da72b22291af7f9e8c68c130a24959068bfcc87534af4edd"],"state_sha256":"63b07dea9f4cd1c7ff5f4e730d71f7ef5c0bfa0f8c70e15616817b1382772046"}