{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:6Z3B2TJ3UABORBT6TIEIIUF3TD","short_pith_number":"pith:6Z3B2TJ3","canonical_record":{"source":{"id":"2606.27047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-06-25T13:52:16Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"65cec8b98030ab1078eb1553400278617f3f496f5876d82734f89b3e19922fc2","abstract_canon_sha256":"f1eab03df055d9fbadf401beddc39608f9c9b44742fb1f60b9b64a28214b940d"},"schema_version":"1.0"},"canonical_sha256":"f6761d4d3ba002e8867e9a088450bb98fdcc3362113be400360bf2542a130b97","source":{"kind":"arxiv","id":"2606.27047","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.27047","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"arxiv_version","alias_value":"2606.27047v1","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.27047","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"pith_short_12","alias_value":"6Z3B2TJ3UABO","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"pith_short_16","alias_value":"6Z3B2TJ3UABORBT6","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"pith_short_8","alias_value":"6Z3B2TJ3","created_at":"2026-06-26T01:16:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:6Z3B2TJ3UABORBT6TIEIIUF3TD","target":"record","payload":{"canonical_record":{"source":{"id":"2606.27047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-06-25T13:52:16Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"65cec8b98030ab1078eb1553400278617f3f496f5876d82734f89b3e19922fc2","abstract_canon_sha256":"f1eab03df055d9fbadf401beddc39608f9c9b44742fb1f60b9b64a28214b940d"},"schema_version":"1.0"},"canonical_sha256":"f6761d4d3ba002e8867e9a088450bb98fdcc3362113be400360bf2542a130b97","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-26T01:16:08.012974Z","signature_b64":"dpjKfHJ8ByPewP4nXSEh82g6JrJWHMzFxnWsrAfI+zX/Uo/JOfauLs7Vkq4tRs2Kml78RIll4qKYrlSmIaqsDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f6761d4d3ba002e8867e9a088450bb98fdcc3362113be400360bf2542a130b97","last_reissued_at":"2026-06-26T01:16:08.012568Z","signature_status":"signed_v1","first_computed_at":"2026-06-26T01:16:08.012568Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.27047","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":"2026-06-26T01:16:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8JFSAsPWscdsPHYl7G6jTb71uJ/Kk7HmtWaci6LqhF049gSz8O2ginCYLV5k0LhGbuEqLaz49xcYl9c1YpniCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T07:44:54.611708Z"},"content_sha256":"90514896fcd6ee2c304efd5bd78ac7dc4285ae74ae04ebae2e4ae3b75531a417","schema_version":"1.0","event_id":"sha256:90514896fcd6ee2c304efd5bd78ac7dc4285ae74ae04ebae2e4ae3b75531a417"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:6Z3B2TJ3UABORBT6TIEIIUF3TD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"NuclearQAv2: A Structured Benchmark for Evaluating Domain-Science Competence in Large Language Models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CL","authors_text":"Benjamin H. Sims, Emily Taylor, Henry Shaowu Yuchi, Michal Kucer, Selma Peterson","submitted_at":"2026-06-25T13:52:16Z","abstract_excerpt":"Large language models (LLMs) have demonstrated strong performance across a wide range of tasks, but ensuring their reliability in highly technical domains remains a significant challenge. In nuclear engineering, problem solving often requires not only factual knowledge but also quantitative reasoning and conceptual understanding. To address the need for systematic evaluation in this domain, we introduce NuclearQAv2, a benchmark for assessing LLMs on nuclear engineering knowledge. The benchmark comprises approximately 1,240 question-answer pairs spanning three categories: boolean, numeric, and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.27047","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/2606.27047/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":"2026-06-26T01:16:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"euUC6WC1La01JaE3H1aDWf8aZGaswhfPvDewTYYprp5O2umkL0Jl5mSW/yxynZREe9sL/4T7c/wWstMrU4ZfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T07:44:54.612675Z"},"content_sha256":"f9c23e5fc8632ea4788b1bc3898d9f891ebdac0098fb3743b3e39bb7d42f2ec4","schema_version":"1.0","event_id":"sha256:f9c23e5fc8632ea4788b1bc3898d9f891ebdac0098fb3743b3e39bb7d42f2ec4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6Z3B2TJ3UABORBT6TIEIIUF3TD/bundle.json","state_url":"https://pith.science/pith/6Z3B2TJ3UABORBT6TIEIIUF3TD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6Z3B2TJ3UABORBT6TIEIIUF3TD/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":"2026-08-01T07:44:54Z","links":{"resolver":"https://pith.science/pith/6Z3B2TJ3UABORBT6TIEIIUF3TD","bundle":"https://pith.science/pith/6Z3B2TJ3UABORBT6TIEIIUF3TD/bundle.json","state":"https://pith.science/pith/6Z3B2TJ3UABORBT6TIEIIUF3TD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6Z3B2TJ3UABORBT6TIEIIUF3TD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:6Z3B2TJ3UABORBT6TIEIIUF3TD","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":"f1eab03df055d9fbadf401beddc39608f9c9b44742fb1f60b9b64a28214b940d","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-06-25T13:52:16Z","title_canon_sha256":"65cec8b98030ab1078eb1553400278617f3f496f5876d82734f89b3e19922fc2"},"schema_version":"1.0","source":{"id":"2606.27047","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.27047","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"arxiv_version","alias_value":"2606.27047v1","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.27047","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"pith_short_12","alias_value":"6Z3B2TJ3UABO","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"pith_short_16","alias_value":"6Z3B2TJ3UABORBT6","created_at":"2026-06-26T01:16:08Z"},{"alias_kind":"pith_short_8","alias_value":"6Z3B2TJ3","created_at":"2026-06-26T01:16:08Z"}],"graph_snapshots":[{"event_id":"sha256:f9c23e5fc8632ea4788b1bc3898d9f891ebdac0098fb3743b3e39bb7d42f2ec4","target":"graph","created_at":"2026-06-26T01:16:08Z","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/2606.27047/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large language models (LLMs) have demonstrated strong performance across a wide range of tasks, but ensuring their reliability in highly technical domains remains a significant challenge. In nuclear engineering, problem solving often requires not only factual knowledge but also quantitative reasoning and conceptual understanding. To address the need for systematic evaluation in this domain, we introduce NuclearQAv2, a benchmark for assessing LLMs on nuclear engineering knowledge. The benchmark comprises approximately 1,240 question-answer pairs spanning three categories: boolean, numeric, and ","authors_text":"Benjamin H. Sims, Emily Taylor, Henry Shaowu Yuchi, Michal Kucer, Selma Peterson","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-06-25T13:52:16Z","title":"NuclearQAv2: A Structured Benchmark for Evaluating Domain-Science Competence in Large Language Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.27047","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":"sha256:90514896fcd6ee2c304efd5bd78ac7dc4285ae74ae04ebae2e4ae3b75531a417","target":"record","created_at":"2026-06-26T01:16:08Z","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":"f1eab03df055d9fbadf401beddc39608f9c9b44742fb1f60b9b64a28214b940d","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-06-25T13:52:16Z","title_canon_sha256":"65cec8b98030ab1078eb1553400278617f3f496f5876d82734f89b3e19922fc2"},"schema_version":"1.0","source":{"id":"2606.27047","kind":"arxiv","version":1}},"canonical_sha256":"f6761d4d3ba002e8867e9a088450bb98fdcc3362113be400360bf2542a130b97","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f6761d4d3ba002e8867e9a088450bb98fdcc3362113be400360bf2542a130b97","first_computed_at":"2026-06-26T01:16:08.012568Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-26T01:16:08.012568Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dpjKfHJ8ByPewP4nXSEh82g6JrJWHMzFxnWsrAfI+zX/Uo/JOfauLs7Vkq4tRs2Kml78RIll4qKYrlSmIaqsDg==","signature_status":"signed_v1","signed_at":"2026-06-26T01:16:08.012974Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.27047","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90514896fcd6ee2c304efd5bd78ac7dc4285ae74ae04ebae2e4ae3b75531a417","sha256:f9c23e5fc8632ea4788b1bc3898d9f891ebdac0098fb3743b3e39bb7d42f2ec4"],"state_sha256":"95866a0a3b44586846f1b7e9d59ba58164059c80f1dab0a98d01dd809ab29681"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9FaNit8CUFrWw780PDkXFQd1ZbCMd2ZiW01CJ7LP7giuAEHloM33kcFHUCFQSCV5g+tNVYdhqUd23Ywjqt3zBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T07:44:54.618264Z","bundle_sha256":"fd732fcd5c8ad5f3f4733bbe6c652faf87ebcb1532261007836b916e122135ef"}}