{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:X7FPUPBUAZD2VHFGCJRB6T5GNK","short_pith_number":"pith:X7FPUPBU","canonical_record":{"source":{"id":"2509.07867","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2025-09-09T15:55:15Z","cross_cats_sorted":[],"title_canon_sha256":"3d769041b861241b01cbc5c9c8905fbce1bdef33566b1f1419f019eac08dd818","abstract_canon_sha256":"dac716a76f13669bc1d0f602d1cd6af3dd0ecdc02c6c43daf2c16f159a2fbeb1"},"schema_version":"1.0"},"canonical_sha256":"bfcafa3c340647aa9ca612621f4fa66ab9345c0ba3de424652b7b22418115d02","source":{"kind":"arxiv","id":"2509.07867","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.07867","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"2509.07867v1","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.07867","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"X7FPUPBUAZD2","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"pith_short_16","alias_value":"X7FPUPBUAZD2VHFG","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"pith_short_8","alias_value":"X7FPUPBU","created_at":"2026-07-05T12:07:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:X7FPUPBUAZD2VHFGCJRB6T5GNK","target":"record","payload":{"canonical_record":{"source":{"id":"2509.07867","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2025-09-09T15:55:15Z","cross_cats_sorted":[],"title_canon_sha256":"3d769041b861241b01cbc5c9c8905fbce1bdef33566b1f1419f019eac08dd818","abstract_canon_sha256":"dac716a76f13669bc1d0f602d1cd6af3dd0ecdc02c6c43daf2c16f159a2fbeb1"},"schema_version":"1.0"},"canonical_sha256":"bfcafa3c340647aa9ca612621f4fa66ab9345c0ba3de424652b7b22418115d02","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:07:41.439930Z","signature_b64":"YEqzM65JuW6IuA6ONxM7SpVLuV+YG1+5OCAxHijXoqh91uZQLv2b8wW1dKicWIaB2S3HMFBqgdDCIJLvVzKABQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bfcafa3c340647aa9ca612621f4fa66ab9345c0ba3de424652b7b22418115d02","last_reissued_at":"2026-07-05T12:07:41.439449Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:07:41.439449Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.07867","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":"2026-07-05T12:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9+n1FVpfbD2/+mXqxL8nKuZ+XGXEih8v7Gw1/VSzNXfiW1VzqShJifkyi40kQW0q7BeMsJhKwiY/Ayb+yfQCDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T11:07:47.159858Z"},"content_sha256":"32a4661c201860a4f24c63e0d586dc4536f513a348e4c1fd51b0f66d47f34f46","schema_version":"1.0","event_id":"sha256:32a4661c201860a4f24c63e0d586dc4536f513a348e4c1fd51b0f66d47f34f46"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:X7FPUPBUAZD2VHFGCJRB6T5GNK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CP-Model-Zoo: A Natural Language Query System for Constraint Programming Models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"Augustin Crespin, H\\'el\\`ene Verhaeghe, Ioannis Kostis, Pierre Schaus","submitted_at":"2025-09-09T15:55:15Z","abstract_excerpt":"Constraint Programming and its high-level modeling languages have long been recognized for their potential to achieve the holy grail of problem-solving. However, the complexity of modeling languages, the large number of global constraints, and the art of creating good models have often hindered non-experts from choosing CP to solve their combinatorial problems. While generating an expert-level model from a natural-language description of a problem would be the dream, we are not yet there. We propose a tutoring system called CP-Model-Zoo, exploiting expert-written models accumulated through the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.07867","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/2509.07867/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":"2026-07-05T12:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yV9b7MnFBn3HeXDWJ52AW+7tSr0djkSSCe3RdIusAqjomFbg8kDfkGWIujh03fj3GbGhH9DGXoE5qLWfVh3YAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T11:07:47.160426Z"},"content_sha256":"f0b0199e425fd16e87a856c6b454c307a92a1dbcde972ab6ce018ea4b8f310dd","schema_version":"1.0","event_id":"sha256:f0b0199e425fd16e87a856c6b454c307a92a1dbcde972ab6ce018ea4b8f310dd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X7FPUPBUAZD2VHFGCJRB6T5GNK/bundle.json","state_url":"https://pith.science/pith/X7FPUPBUAZD2VHFGCJRB6T5GNK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X7FPUPBUAZD2VHFGCJRB6T5GNK/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":"2026-08-18T11:07:47Z","links":{"resolver":"https://pith.science/pith/X7FPUPBUAZD2VHFGCJRB6T5GNK","bundle":"https://pith.science/pith/X7FPUPBUAZD2VHFGCJRB6T5GNK/bundle.json","state":"https://pith.science/pith/X7FPUPBUAZD2VHFGCJRB6T5GNK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X7FPUPBUAZD2VHFGCJRB6T5GNK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:X7FPUPBUAZD2VHFGCJRB6T5GNK","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":"dac716a76f13669bc1d0f602d1cd6af3dd0ecdc02c6c43daf2c16f159a2fbeb1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2025-09-09T15:55:15Z","title_canon_sha256":"3d769041b861241b01cbc5c9c8905fbce1bdef33566b1f1419f019eac08dd818"},"schema_version":"1.0","source":{"id":"2509.07867","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.07867","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"2509.07867v1","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.07867","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"X7FPUPBUAZD2","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"pith_short_16","alias_value":"X7FPUPBUAZD2VHFG","created_at":"2026-07-05T12:07:41Z"},{"alias_kind":"pith_short_8","alias_value":"X7FPUPBU","created_at":"2026-07-05T12:07:41Z"}],"graph_snapshots":[{"event_id":"sha256:f0b0199e425fd16e87a856c6b454c307a92a1dbcde972ab6ce018ea4b8f310dd","target":"graph","created_at":"2026-07-05T12:07:41Z","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/2509.07867/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Constraint Programming and its high-level modeling languages have long been recognized for their potential to achieve the holy grail of problem-solving. However, the complexity of modeling languages, the large number of global constraints, and the art of creating good models have often hindered non-experts from choosing CP to solve their combinatorial problems. While generating an expert-level model from a natural-language description of a problem would be the dream, we are not yet there. We propose a tutoring system called CP-Model-Zoo, exploiting expert-written models accumulated through the","authors_text":"Augustin Crespin, H\\'el\\`ene Verhaeghe, Ioannis Kostis, Pierre Schaus","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2025-09-09T15:55:15Z","title":"CP-Model-Zoo: A Natural Language Query System for Constraint Programming Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.07867","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":"sha256:32a4661c201860a4f24c63e0d586dc4536f513a348e4c1fd51b0f66d47f34f46","target":"record","created_at":"2026-07-05T12:07:41Z","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":"dac716a76f13669bc1d0f602d1cd6af3dd0ecdc02c6c43daf2c16f159a2fbeb1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2025-09-09T15:55:15Z","title_canon_sha256":"3d769041b861241b01cbc5c9c8905fbce1bdef33566b1f1419f019eac08dd818"},"schema_version":"1.0","source":{"id":"2509.07867","kind":"arxiv","version":1}},"canonical_sha256":"bfcafa3c340647aa9ca612621f4fa66ab9345c0ba3de424652b7b22418115d02","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfcafa3c340647aa9ca612621f4fa66ab9345c0ba3de424652b7b22418115d02","first_computed_at":"2026-07-05T12:07:41.439449Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:07:41.439449Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YEqzM65JuW6IuA6ONxM7SpVLuV+YG1+5OCAxHijXoqh91uZQLv2b8wW1dKicWIaB2S3HMFBqgdDCIJLvVzKABQ==","signature_status":"signed_v1","signed_at":"2026-07-05T12:07:41.439930Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.07867","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:32a4661c201860a4f24c63e0d586dc4536f513a348e4c1fd51b0f66d47f34f46","sha256:f0b0199e425fd16e87a856c6b454c307a92a1dbcde972ab6ce018ea4b8f310dd"],"state_sha256":"04bbf391bca599e18019304dd6b6c19e76613e7bdc319380bf6d51824e64b3bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NM7jgvmIW+yQvNshQMRv/zzOOeRPxOjzdv20eALeiKmDbnQnN/a//cLVUpfgDXjdhWgHxWMKhzpwg3JRpqHsCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T11:07:47.164758Z","bundle_sha256":"32d59b4d4c739c8542b61498232d5b7a9429d1ff13d2f1426f6e5ffdb644ff22"}}