{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:5BWOKIPYIRGMTWIVEFFAAW6OPD","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":"5b9af3fd25199396344a28ae3f2019a7bd1331582b555d60777fb164a9d979a3","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2014-02-28T15:28:23Z","title_canon_sha256":"3844ebdd76a2fc940aa8f8ccf8840b747f8523c4e35f13d4c68590231b702673"},"schema_version":"1.0","source":{"id":"1402.7278","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.7278","created_at":"2026-05-18T01:44:21Z"},{"alias_kind":"arxiv_version","alias_value":"1402.7278v1","created_at":"2026-05-18T01:44:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.7278","created_at":"2026-05-18T01:44:21Z"},{"alias_kind":"pith_short_12","alias_value":"5BWOKIPYIRGM","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"5BWOKIPYIRGMTWIV","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"5BWOKIPY","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:30d988576644e82e1c46d8ad460301ab95ac8ab6e5e67da8a6c3b163ae279357","target":"graph","created_at":"2026-05-18T01:44:21Z","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":"A transversal mapping of the Gd concentration was measured in UO2-Gd2O3 nuclear fuel pellets by electron paramagnetic resonance spectroscopy (EPR). The quantification was made from the comparison with a Gd2O3 reference sample. The nominal concentration in the pellets is UO2: 7.5 % Gd2O3. A concentration gradient was found, which indicates that the Gd2O3 amount diminishes towards the edges of the pellets. The concentration varies from (9.3 +/- 0.5)% in the center to (5.8 +/- 0.3)% in one of the edges. The method was found to be particularly suitable for the precise mapping of the distribution o","authors_text":"A. Butera, D. Tobia, E. L. Winkler, F. Kaufmann, J. Milano, L. Bianchi, R. Kempf","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2014-02-28T15:28:23Z","title":"Determination of Gd concentration profile in UO2-Gd2O3 fuel pellets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.7278","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:a4fec055902d4b71c4eb6f7ddf2a53e41f96c9a200a298dc5b65bf38321a8d5e","target":"record","created_at":"2026-05-18T01:44:21Z","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":"5b9af3fd25199396344a28ae3f2019a7bd1331582b555d60777fb164a9d979a3","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2014-02-28T15:28:23Z","title_canon_sha256":"3844ebdd76a2fc940aa8f8ccf8840b747f8523c4e35f13d4c68590231b702673"},"schema_version":"1.0","source":{"id":"1402.7278","kind":"arxiv","version":1}},"canonical_sha256":"e86ce521f8444cc9d915214a005bce78fa32d802f8a22b2c46760c212466828c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e86ce521f8444cc9d915214a005bce78fa32d802f8a22b2c46760c212466828c","first_computed_at":"2026-05-18T01:44:21.797742Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:21.797742Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PBbSIpsqeGwUBopObnlCHOrjaZS3pkJAycmr6V15kkuMrH5Lb4QHi5oo5TQuhqsDKvaL9iUcSYBxioq0P6lGAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:21.798432Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.7278","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a4fec055902d4b71c4eb6f7ddf2a53e41f96c9a200a298dc5b65bf38321a8d5e","sha256:30d988576644e82e1c46d8ad460301ab95ac8ab6e5e67da8a6c3b163ae279357"],"state_sha256":"0c170de633b69915b45edc9bfe1f7a6f158221d086f637767ad05106cfd3caea"}