{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:RXUBIQBL4537SBTTFUCHHI67CJ","short_pith_number":"pith:RXUBIQBL","canonical_record":{"source":{"id":"2602.19171","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2025-12-08T05:52:14Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"ddb604377f271d32d3e1e8db6a819535df11ea739fb601c240f7110fd282023e","abstract_canon_sha256":"e96547051fd1ec9a5d6be986be8173c485e9b35513080f3e36fd147b5bd1a0c2"},"schema_version":"1.0"},"canonical_sha256":"8de814402be777f906732d0473a3df127fc643cf52530de087ca940b81ee82b4","source":{"kind":"arxiv","id":"2602.19171","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.19171","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"arxiv_version","alias_value":"2602.19171v3","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.19171","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"pith_short_12","alias_value":"RXUBIQBL4537","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"pith_short_16","alias_value":"RXUBIQBL4537SBTT","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"pith_short_8","alias_value":"RXUBIQBL","created_at":"2026-06-01T01:02:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:RXUBIQBL4537SBTTFUCHHI67CJ","target":"record","payload":{"canonical_record":{"source":{"id":"2602.19171","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2025-12-08T05:52:14Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"ddb604377f271d32d3e1e8db6a819535df11ea739fb601c240f7110fd282023e","abstract_canon_sha256":"e96547051fd1ec9a5d6be986be8173c485e9b35513080f3e36fd147b5bd1a0c2"},"schema_version":"1.0"},"canonical_sha256":"8de814402be777f906732d0473a3df127fc643cf52530de087ca940b81ee82b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-01T01:02:35.203541Z","signature_b64":"qSznj7IiWcnB1Xu1SqkHspPx0wI5acDfMC1eQ3n7k64WAbyN2vEeG4EDD02V4TRi2bmUEyO0HR25tLM5ACkXBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8de814402be777f906732d0473a3df127fc643cf52530de087ca940b81ee82b4","last_reissued_at":"2026-06-01T01:02:35.202344Z","signature_status":"signed_v1","first_computed_at":"2026-06-01T01:02:35.202344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.19171","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-01T01:02:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NU1OtBI7MYw/X5FZd3XW9OUR6ZbzgN2vA5wK0nxct6VOO/+pnynfupvqOLJZCz0FHtOAitmpbNg0x1OepTEvCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T05:08:52.222304Z"},"content_sha256":"429ec3587cba3996c92204c5f174a28e9f9cd668666bdfdc2f7f91b59ec9e63a","schema_version":"1.0","event_id":"sha256:429ec3587cba3996c92204c5f174a28e9f9cd668666bdfdc2f7f91b59ec9e63a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:RXUBIQBL4537SBTTFUCHHI67CJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HistCAD: A Constraint-Aware Parametric History-Based CAD Representation, Dataset, and Benchmark with Industrial Complexity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Explicit constraints in parametric CAD sequences preserve design intent after parameter edits.","cross_cats":["cs.AI"],"primary_cat":"cs.GR","authors_text":"Chuanyang Li, Chuqi Han, Hailong Shen, Jiaxin Jing, Peng Zheng, Xintong Dong, Yanzhi Song, Zhouwang Yang","submitted_at":"2025-12-08T05:52:14Z","abstract_excerpt":"Parametric CAD sequences are reusable because dimensional and geometric constraints govern how parameter changes propagate. Existing CAD generation datasets and benchmarks emphasize reconstruction fidelity, execution validity, or static shape similarity, leaving preservation of design intent under edits largely unmeasured. We introduce HistCAD, a representation standard, dataset, and benchmark for executable parametric CAD with explicit constraints. HistCAD defines an intermediate language independent of CAD software, recording sketch primitives, constraints, feature operations, and 3D point b"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Experiments show that explicit constraints are essential for preserving design intent after edits, and that HistCAD supports supervised CAD generation from text and direct LLM workflows.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The introduced metrics (Edit Reachability, conditional preserved constraint satisfaction, Overall Editable Success) and the dataset alignment with native CAD models sufficiently capture real-world design intent preservation and industrial complexity.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"HistCAD provides a constraint-aware parametric CAD representation, a dataset of 170k industrial sequences, and an editability benchmark with metrics ER, cPCSR, and OES to evaluate preservation of design intent.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Explicit constraints in parametric CAD sequences preserve design intent after parameter edits.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"96d4ec196342ac67e5ec3763c6c60f3f5098a485212d3e1149e4a34eeeb84146"},"source":{"id":"2602.19171","kind":"arxiv","version":3},"verdict":{"id":"63235a48-3d68-4579-9d8c-eaa21bdf0d57","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-17T01:10:27.769865Z","strongest_claim":"Experiments show that explicit constraints are essential for preserving design intent after edits, and that HistCAD supports supervised CAD generation from text and direct LLM workflows.","one_line_summary":"HistCAD provides a constraint-aware parametric CAD representation, a dataset of 170k industrial sequences, and an editability benchmark with metrics ER, cPCSR, and OES to evaluate preservation of design intent.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The introduced metrics (Edit Reachability, conditional preserved constraint satisfaction, Overall Editable Success) and the dataset alignment with native CAD models sufficiently capture real-world design intent preservation and industrial complexity.","pith_extraction_headline":"Explicit constraints in parametric CAD sequences preserve design intent after parameter edits."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2602.19171/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":2,"snapshot_sha256":"925ce0a6fd88d4b84848f1ec6a2e2ca4637f723012eef2f1844e820d09eff989"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":"63235a48-3d68-4579-9d8c-eaa21bdf0d57"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-01T01:02:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ddHzvZcloWT1J2vPBkdYE0adJBmag2Zbrl1vQ6ESQg82NZ4Mjz51/Z3qJwIsP3jBr3Wk6dyz7dahjcmq7VW0Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T05:08:52.222767Z"},"content_sha256":"7fe582bde2c0ed09b4438499e9415901c8c76c621de6cc024d443982fb996544","schema_version":"1.0","event_id":"sha256:7fe582bde2c0ed09b4438499e9415901c8c76c621de6cc024d443982fb996544"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RXUBIQBL4537SBTTFUCHHI67CJ/bundle.json","state_url":"https://pith.science/pith/RXUBIQBL4537SBTTFUCHHI67CJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RXUBIQBL4537SBTTFUCHHI67CJ/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":"2026-06-28T05:08:52Z","links":{"resolver":"https://pith.science/pith/RXUBIQBL4537SBTTFUCHHI67CJ","bundle":"https://pith.science/pith/RXUBIQBL4537SBTTFUCHHI67CJ/bundle.json","state":"https://pith.science/pith/RXUBIQBL4537SBTTFUCHHI67CJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RXUBIQBL4537SBTTFUCHHI67CJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:RXUBIQBL4537SBTTFUCHHI67CJ","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":"e96547051fd1ec9a5d6be986be8173c485e9b35513080f3e36fd147b5bd1a0c2","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2025-12-08T05:52:14Z","title_canon_sha256":"ddb604377f271d32d3e1e8db6a819535df11ea739fb601c240f7110fd282023e"},"schema_version":"1.0","source":{"id":"2602.19171","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.19171","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"arxiv_version","alias_value":"2602.19171v3","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.19171","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"pith_short_12","alias_value":"RXUBIQBL4537","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"pith_short_16","alias_value":"RXUBIQBL4537SBTT","created_at":"2026-06-01T01:02:35Z"},{"alias_kind":"pith_short_8","alias_value":"RXUBIQBL","created_at":"2026-06-01T01:02:35Z"}],"graph_snapshots":[{"event_id":"sha256:7fe582bde2c0ed09b4438499e9415901c8c76c621de6cc024d443982fb996544","target":"graph","created_at":"2026-06-01T01:02:35Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"Experiments show that explicit constraints are essential for preserving design intent after edits, and that HistCAD supports supervised CAD generation from text and direct LLM workflows."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The introduced metrics (Edit Reachability, conditional preserved constraint satisfaction, Overall Editable Success) and the dataset alignment with native CAD models sufficiently capture real-world design intent preservation and industrial complexity."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"HistCAD provides a constraint-aware parametric CAD representation, a dataset of 170k industrial sequences, and an editability benchmark with metrics ER, cPCSR, and OES to evaluate preservation of design intent."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Explicit constraints in parametric CAD sequences preserve design intent after parameter edits."}],"snapshot_sha256":"96d4ec196342ac67e5ec3763c6c60f3f5098a485212d3e1149e4a34eeeb84146"},"formal_canon":{"evidence_count":2,"snapshot_sha256":"925ce0a6fd88d4b84848f1ec6a2e2ca4637f723012eef2f1844e820d09eff989"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2602.19171/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Parametric CAD sequences are reusable because dimensional and geometric constraints govern how parameter changes propagate. Existing CAD generation datasets and benchmarks emphasize reconstruction fidelity, execution validity, or static shape similarity, leaving preservation of design intent under edits largely unmeasured. We introduce HistCAD, a representation standard, dataset, and benchmark for executable parametric CAD with explicit constraints. HistCAD defines an intermediate language independent of CAD software, recording sketch primitives, constraints, feature operations, and 3D point b","authors_text":"Chuanyang Li, Chuqi Han, Hailong Shen, Jiaxin Jing, Peng Zheng, Xintong Dong, Yanzhi Song, Zhouwang Yang","cross_cats":["cs.AI"],"headline":"Explicit constraints in parametric CAD sequences preserve design intent after parameter edits.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2025-12-08T05:52:14Z","title":"HistCAD: A Constraint-Aware Parametric History-Based CAD Representation, Dataset, and Benchmark with Industrial Complexity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.19171","kind":"arxiv","version":3},"verdict":{"created_at":"2026-05-17T01:10:27.769865Z","id":"63235a48-3d68-4579-9d8c-eaa21bdf0d57","model_set":{"reader":"grok-4.3"},"one_line_summary":"HistCAD provides a constraint-aware parametric CAD representation, a dataset of 170k industrial sequences, and an editability benchmark with metrics ER, cPCSR, and OES to evaluate preservation of design intent.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Explicit constraints in parametric CAD sequences preserve design intent after parameter edits.","strongest_claim":"Experiments show that explicit constraints are essential for preserving design intent after edits, and that HistCAD supports supervised CAD generation from text and direct LLM workflows.","weakest_assumption":"The introduced metrics (Edit Reachability, conditional preserved constraint satisfaction, Overall Editable Success) and the dataset alignment with native CAD models sufficiently capture real-world design intent preservation and industrial complexity."}},"verdict_id":"63235a48-3d68-4579-9d8c-eaa21bdf0d57"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:429ec3587cba3996c92204c5f174a28e9f9cd668666bdfdc2f7f91b59ec9e63a","target":"record","created_at":"2026-06-01T01:02:35Z","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":"e96547051fd1ec9a5d6be986be8173c485e9b35513080f3e36fd147b5bd1a0c2","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2025-12-08T05:52:14Z","title_canon_sha256":"ddb604377f271d32d3e1e8db6a819535df11ea739fb601c240f7110fd282023e"},"schema_version":"1.0","source":{"id":"2602.19171","kind":"arxiv","version":3}},"canonical_sha256":"8de814402be777f906732d0473a3df127fc643cf52530de087ca940b81ee82b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8de814402be777f906732d0473a3df127fc643cf52530de087ca940b81ee82b4","first_computed_at":"2026-06-01T01:02:35.202344Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-01T01:02:35.202344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qSznj7IiWcnB1Xu1SqkHspPx0wI5acDfMC1eQ3n7k64WAbyN2vEeG4EDD02V4TRi2bmUEyO0HR25tLM5ACkXBw==","signature_status":"signed_v1","signed_at":"2026-06-01T01:02:35.203541Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.19171","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:429ec3587cba3996c92204c5f174a28e9f9cd668666bdfdc2f7f91b59ec9e63a","sha256:7fe582bde2c0ed09b4438499e9415901c8c76c621de6cc024d443982fb996544"],"state_sha256":"e3f7a3f052b3d953f2eb1b5366870e06fe099808e832308c986bf8fc9666ad35"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3dFeb9LK04Le3uM5/pTZb/2g+hbxjL9RcGu8ZMmlPgVlfu3xlfsM2n6uKWztv883nBxxGY8zd48ymBMWPy5pAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T05:08:52.225141Z","bundle_sha256":"bf32dd84b9c64ef932cce5d3354377011ae658baa20b70680621c6d508ac67e1"}}