{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:VYQ7WF6Q6QMH45DWBFI6JO6QFL","short_pith_number":"pith:VYQ7WF6Q","canonical_record":{"source":{"id":"2606.23128","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-22T10:15:22Z","cross_cats_sorted":[],"title_canon_sha256":"ad26e3e22e9602a13b2f3e2cc0bd3d0677728517d5197229311acadf5e1a517d","abstract_canon_sha256":"5b20075d067f9957434ab05eaf30c979d9567cbbb644098c320b6d6a307aa7e5"},"schema_version":"1.0"},"canonical_sha256":"ae21fb17d0f4187e74760951e4bbd02af5ebc85338c1ec161556beb0b99d92af","source":{"kind":"arxiv","id":"2606.23128","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.23128","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"arxiv_version","alias_value":"2606.23128v1","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.23128","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"pith_short_12","alias_value":"VYQ7WF6Q6QMH","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"pith_short_16","alias_value":"VYQ7WF6Q6QMH45DW","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"pith_short_8","alias_value":"VYQ7WF6Q","created_at":"2026-06-23T03:14:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:VYQ7WF6Q6QMH45DWBFI6JO6QFL","target":"record","payload":{"canonical_record":{"source":{"id":"2606.23128","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-22T10:15:22Z","cross_cats_sorted":[],"title_canon_sha256":"ad26e3e22e9602a13b2f3e2cc0bd3d0677728517d5197229311acadf5e1a517d","abstract_canon_sha256":"5b20075d067f9957434ab05eaf30c979d9567cbbb644098c320b6d6a307aa7e5"},"schema_version":"1.0"},"canonical_sha256":"ae21fb17d0f4187e74760951e4bbd02af5ebc85338c1ec161556beb0b99d92af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T03:14:10.750045Z","signature_b64":"cz318MMA8JAYZz2gRgFliIRz9Rouj7DqfTg3Q4D1/PIgVFWfRshjFmhvDUa3UzTu362qHoSRX/xqZ7nVfvm6AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae21fb17d0f4187e74760951e4bbd02af5ebc85338c1ec161556beb0b99d92af","last_reissued_at":"2026-06-23T03:14:10.749649Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T03:14:10.749649Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.23128","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-23T03:14:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xg+kf3DpFkURdktOhPtphW9EqNFs7tA2Fa6SYQY06J5O7Gf1wo3AmKGilxTleLo7UhMuXGwezQuBFXai1qeoAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T03:11:47.227273Z"},"content_sha256":"0811a5384a5f678b5744be6dbcef953ac114961166aca8d77ee97d34eec5c6d4","schema_version":"1.0","event_id":"sha256:0811a5384a5f678b5744be6dbcef953ac114961166aca8d77ee97d34eec5c6d4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:VYQ7WF6Q6QMH45DWBFI6JO6QFL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reduced-Order Modelling of Defect Transport using Surrogate Kinetics: Application to U$_x$Pu$_ {1-x}$N","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Peter Hatton","submitted_at":"2026-06-22T10:15:22Z","abstract_excerpt":"Defect transport in chemically disordered materials is a difficult phenomenon to model since migration energetics depend strongly on the local chemical environment, producing a distribution of transition barriers that cannot be exhaustively enumerated. Here, we develop a reduced-order approach to modelling defect diffusion in compositionally complex materials using environment-dependent surrogate kinetics. Migration energetics for actinide vacancies, nitride vacancies, and actinide-nitride divacancies in U$_x$Pu$_{1-x}$N are generated using the Hop-Decorate workflow across thousands of chemica"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.23128","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.23128/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-23T03:14:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"40jrKS5IpifdA9mdgM1bGSWPZ2rDB1a9TzhLDKspeXMIN7tgo7cvANerLNtHFvJ9GlGBdmH/LtXYYQ0eBajmDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T03:11:47.227680Z"},"content_sha256":"63f316f28263f1c16b3b471fdad8bd6c4f362debbb5f6f990fade7c32e6d2325","schema_version":"1.0","event_id":"sha256:63f316f28263f1c16b3b471fdad8bd6c4f362debbb5f6f990fade7c32e6d2325"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VYQ7WF6Q6QMH45DWBFI6JO6QFL/bundle.json","state_url":"https://pith.science/pith/VYQ7WF6Q6QMH45DWBFI6JO6QFL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VYQ7WF6Q6QMH45DWBFI6JO6QFL/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-30T03:11:47Z","links":{"resolver":"https://pith.science/pith/VYQ7WF6Q6QMH45DWBFI6JO6QFL","bundle":"https://pith.science/pith/VYQ7WF6Q6QMH45DWBFI6JO6QFL/bundle.json","state":"https://pith.science/pith/VYQ7WF6Q6QMH45DWBFI6JO6QFL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VYQ7WF6Q6QMH45DWBFI6JO6QFL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:VYQ7WF6Q6QMH45DWBFI6JO6QFL","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":"5b20075d067f9957434ab05eaf30c979d9567cbbb644098c320b6d6a307aa7e5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-22T10:15:22Z","title_canon_sha256":"ad26e3e22e9602a13b2f3e2cc0bd3d0677728517d5197229311acadf5e1a517d"},"schema_version":"1.0","source":{"id":"2606.23128","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.23128","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"arxiv_version","alias_value":"2606.23128v1","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.23128","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"pith_short_12","alias_value":"VYQ7WF6Q6QMH","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"pith_short_16","alias_value":"VYQ7WF6Q6QMH45DW","created_at":"2026-06-23T03:14:10Z"},{"alias_kind":"pith_short_8","alias_value":"VYQ7WF6Q","created_at":"2026-06-23T03:14:10Z"}],"graph_snapshots":[{"event_id":"sha256:63f316f28263f1c16b3b471fdad8bd6c4f362debbb5f6f990fade7c32e6d2325","target":"graph","created_at":"2026-06-23T03:14:10Z","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/2606.23128/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Defect transport in chemically disordered materials is a difficult phenomenon to model since migration energetics depend strongly on the local chemical environment, producing a distribution of transition barriers that cannot be exhaustively enumerated. Here, we develop a reduced-order approach to modelling defect diffusion in compositionally complex materials using environment-dependent surrogate kinetics. Migration energetics for actinide vacancies, nitride vacancies, and actinide-nitride divacancies in U$_x$Pu$_{1-x}$N are generated using the Hop-Decorate workflow across thousands of chemica","authors_text":"Peter Hatton","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-22T10:15:22Z","title":"Reduced-Order Modelling of Defect Transport using Surrogate Kinetics: Application to U$_x$Pu$_ {1-x}$N"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.23128","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":"sha256:0811a5384a5f678b5744be6dbcef953ac114961166aca8d77ee97d34eec5c6d4","target":"record","created_at":"2026-06-23T03:14:10Z","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":"5b20075d067f9957434ab05eaf30c979d9567cbbb644098c320b6d6a307aa7e5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-06-22T10:15:22Z","title_canon_sha256":"ad26e3e22e9602a13b2f3e2cc0bd3d0677728517d5197229311acadf5e1a517d"},"schema_version":"1.0","source":{"id":"2606.23128","kind":"arxiv","version":1}},"canonical_sha256":"ae21fb17d0f4187e74760951e4bbd02af5ebc85338c1ec161556beb0b99d92af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae21fb17d0f4187e74760951e4bbd02af5ebc85338c1ec161556beb0b99d92af","first_computed_at":"2026-06-23T03:14:10.749649Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T03:14:10.749649Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cz318MMA8JAYZz2gRgFliIRz9Rouj7DqfTg3Q4D1/PIgVFWfRshjFmhvDUa3UzTu362qHoSRX/xqZ7nVfvm6AA==","signature_status":"signed_v1","signed_at":"2026-06-23T03:14:10.750045Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.23128","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0811a5384a5f678b5744be6dbcef953ac114961166aca8d77ee97d34eec5c6d4","sha256:63f316f28263f1c16b3b471fdad8bd6c4f362debbb5f6f990fade7c32e6d2325"],"state_sha256":"ca7c769dbff690c5cb7624397b6534f73bf020a1276a965891cc35afa0cc1c39"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hNhaljbm/9ogT2ldHbSH/cMrBJsqxKOQMfhzbXeewwszv4YaLLruXeNnFoJl/1Xn/k0nq2FzBSQiQt/rdx0YAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T03:11:47.230330Z","bundle_sha256":"c87333cfc99265ed9a50fdeca3a847c863931bcc1b20f92363a5d2bc92845ad0"}}