{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:CTQLBZU4GKBJWE6CVB2BVHXXYN","short_pith_number":"pith:CTQLBZU4","canonical_record":{"source":{"id":"2605.19717","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-05-19T11:52:42Z","cross_cats_sorted":[],"title_canon_sha256":"4d678c45ad9960f84c458f32fb7a2e84aa7a59f261ae1873e83681fca27abd69","abstract_canon_sha256":"62b5b63b4e49e23f4af471cc24d740a0aaffce955926d3aded20124e645b665b"},"schema_version":"1.0"},"canonical_sha256":"14e0b0e69c32829b13c2a8741a9ef7c352731b8daeda70bb3d424c31ddb09a84","source":{"kind":"arxiv","id":"2605.19717","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.19717","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"arxiv_version","alias_value":"2605.19717v1","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.19717","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"pith_short_12","alias_value":"CTQLBZU4GKBJ","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"pith_short_16","alias_value":"CTQLBZU4GKBJWE6C","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"pith_short_8","alias_value":"CTQLBZU4","created_at":"2026-05-20T01:06:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:CTQLBZU4GKBJWE6CVB2BVHXXYN","target":"record","payload":{"canonical_record":{"source":{"id":"2605.19717","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-05-19T11:52:42Z","cross_cats_sorted":[],"title_canon_sha256":"4d678c45ad9960f84c458f32fb7a2e84aa7a59f261ae1873e83681fca27abd69","abstract_canon_sha256":"62b5b63b4e49e23f4af471cc24d740a0aaffce955926d3aded20124e645b665b"},"schema_version":"1.0"},"canonical_sha256":"14e0b0e69c32829b13c2a8741a9ef7c352731b8daeda70bb3d424c31ddb09a84","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T01:06:10.821492Z","signature_b64":"6qWtrtRuxh1/brvwSGzP6nGfTHxW0BVg3jykHbFMETYxCljCqs73tB0LRZ926TKCTYDgbKj4izNln02drRHFAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14e0b0e69c32829b13c2a8741a9ef7c352731b8daeda70bb3d424c31ddb09a84","last_reissued_at":"2026-05-20T01:06:10.820897Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T01:06:10.820897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.19717","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":"2026-05-20T01:06:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U88bk7YX97iH5VagOWDUx7dJd0ngziqoiIH/MN/MovsjZ0btBVRMgnhHcd7+LR/kqrc31n/DEIbO2EXHQLqjBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:32:12.958386Z"},"content_sha256":"a1313e3996bebf900c94a27cdb2f82cd4e33a12620ed39a0ab02b829fb761b2d","schema_version":"1.0","event_id":"sha256:a1313e3996bebf900c94a27cdb2f82cd4e33a12620ed39a0ab02b829fb761b2d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:CTQLBZU4GKBJWE6CVB2BVHXXYN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Physics-in-the-Loop: A Hybrid Agentic Architecture for Validated CAD Engineering Design","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Bernhard Saske, Elias Berger, Jan Mehlst\\\"aubl, Kristin Paetzold-Byhain, Muhammad Usama","submitted_at":"2026-05-19T11:52:42Z","abstract_excerpt":"Large Language Models (LLMs) can generate Computer-Aided Design (CAD), yet lack physical comprehension required for reliable engineering design. Instead of attempting to implicitly learn physical laws from data, we propose a Hybrid Agentic-Physical Architecture that embeds validated knowledge-based engineering tools directly into the decision making loop of autonomous AI agents. In this framework, engineering design is formulated as a closed-loop, sequential decision making process guided by explicit physical verification. Based on a load case, dedicated agents iteratively plan, generate, eval"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.19717","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/2605.19717/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":"2026-05-20T01:06:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RIA9Km8xlySfzFe9TYq1LpBr9KaqyUzjapTKCLFmxWhiicA/9TsM9VVBjdBQbzVNtzDeCAQDpCqC1e2ATc7vCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:32:12.958771Z"},"content_sha256":"6c0677001f3dc4f7ceb63be7dc8c3c50936286d874f34841809d2e037e9bc9df","schema_version":"1.0","event_id":"sha256:6c0677001f3dc4f7ceb63be7dc8c3c50936286d874f34841809d2e037e9bc9df"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CTQLBZU4GKBJWE6CVB2BVHXXYN/bundle.json","state_url":"https://pith.science/pith/CTQLBZU4GKBJWE6CVB2BVHXXYN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CTQLBZU4GKBJWE6CVB2BVHXXYN/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":"2026-05-26T08:32:12Z","links":{"resolver":"https://pith.science/pith/CTQLBZU4GKBJWE6CVB2BVHXXYN","bundle":"https://pith.science/pith/CTQLBZU4GKBJWE6CVB2BVHXXYN/bundle.json","state":"https://pith.science/pith/CTQLBZU4GKBJWE6CVB2BVHXXYN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CTQLBZU4GKBJWE6CVB2BVHXXYN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:CTQLBZU4GKBJWE6CVB2BVHXXYN","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":"62b5b63b4e49e23f4af471cc24d740a0aaffce955926d3aded20124e645b665b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-05-19T11:52:42Z","title_canon_sha256":"4d678c45ad9960f84c458f32fb7a2e84aa7a59f261ae1873e83681fca27abd69"},"schema_version":"1.0","source":{"id":"2605.19717","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.19717","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"arxiv_version","alias_value":"2605.19717v1","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.19717","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"pith_short_12","alias_value":"CTQLBZU4GKBJ","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"pith_short_16","alias_value":"CTQLBZU4GKBJWE6C","created_at":"2026-05-20T01:06:10Z"},{"alias_kind":"pith_short_8","alias_value":"CTQLBZU4","created_at":"2026-05-20T01:06:10Z"}],"graph_snapshots":[{"event_id":"sha256:6c0677001f3dc4f7ceb63be7dc8c3c50936286d874f34841809d2e037e9bc9df","target":"graph","created_at":"2026-05-20T01:06:10Z","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/2605.19717/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large Language Models (LLMs) can generate Computer-Aided Design (CAD), yet lack physical comprehension required for reliable engineering design. Instead of attempting to implicitly learn physical laws from data, we propose a Hybrid Agentic-Physical Architecture that embeds validated knowledge-based engineering tools directly into the decision making loop of autonomous AI agents. In this framework, engineering design is formulated as a closed-loop, sequential decision making process guided by explicit physical verification. Based on a load case, dedicated agents iteratively plan, generate, eval","authors_text":"Bernhard Saske, Elias Berger, Jan Mehlst\\\"aubl, Kristin Paetzold-Byhain, Muhammad Usama","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-05-19T11:52:42Z","title":"Physics-in-the-Loop: A Hybrid Agentic Architecture for Validated CAD Engineering Design"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.19717","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:a1313e3996bebf900c94a27cdb2f82cd4e33a12620ed39a0ab02b829fb761b2d","target":"record","created_at":"2026-05-20T01:06:10Z","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":"62b5b63b4e49e23f4af471cc24d740a0aaffce955926d3aded20124e645b665b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-05-19T11:52:42Z","title_canon_sha256":"4d678c45ad9960f84c458f32fb7a2e84aa7a59f261ae1873e83681fca27abd69"},"schema_version":"1.0","source":{"id":"2605.19717","kind":"arxiv","version":1}},"canonical_sha256":"14e0b0e69c32829b13c2a8741a9ef7c352731b8daeda70bb3d424c31ddb09a84","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14e0b0e69c32829b13c2a8741a9ef7c352731b8daeda70bb3d424c31ddb09a84","first_computed_at":"2026-05-20T01:06:10.820897Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T01:06:10.820897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6qWtrtRuxh1/brvwSGzP6nGfTHxW0BVg3jykHbFMETYxCljCqs73tB0LRZ926TKCTYDgbKj4izNln02drRHFAg==","signature_status":"signed_v1","signed_at":"2026-05-20T01:06:10.821492Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.19717","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1313e3996bebf900c94a27cdb2f82cd4e33a12620ed39a0ab02b829fb761b2d","sha256:6c0677001f3dc4f7ceb63be7dc8c3c50936286d874f34841809d2e037e9bc9df"],"state_sha256":"90527df62f4999fd8bac560c88d50acf15914ef87c7abb948bcb98cd8d255eac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sczIdhHKrxXW/V369kKgVA/YEcskwmefuqxyqxc+QEGExDj8sjtXtHUABdN0aVUXZle+DufOIeePYGEToMivBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T08:32:12.961841Z","bundle_sha256":"339f490c46175b81edc740ae5afed2c1ee61887be2179b63f9586c536b8fdd4a"}}