{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:NP3SLO3OUZ3TZHFODFBZPQGIGR","short_pith_number":"pith:NP3SLO3O","canonical_record":{"source":{"id":"2408.05129","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.SE","submitted_at":"2024-08-09T15:38:45Z","cross_cats_sorted":[],"title_canon_sha256":"56ff18619afadfdb8fddc97a037536e59a92a96159f908aac39aea673a2e93ae","abstract_canon_sha256":"b134575fb898cd9bc594b95fc713028681fb18e36e7ad3c23e49ad430a2097f8"},"schema_version":"1.0"},"canonical_sha256":"6bf725bb6ea6773c9cae194397c0c83465e3ca05f726d7c4a29bb5c13389b94c","source":{"kind":"arxiv","id":"2408.05129","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.05129","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"arxiv_version","alias_value":"2408.05129v2","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.05129","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"pith_short_12","alias_value":"NP3SLO3OUZ3T","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"pith_short_16","alias_value":"NP3SLO3OUZ3TZHFO","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"pith_short_8","alias_value":"NP3SLO3O","created_at":"2026-07-05T10:49:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:NP3SLO3OUZ3TZHFODFBZPQGIGR","target":"record","payload":{"canonical_record":{"source":{"id":"2408.05129","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.SE","submitted_at":"2024-08-09T15:38:45Z","cross_cats_sorted":[],"title_canon_sha256":"56ff18619afadfdb8fddc97a037536e59a92a96159f908aac39aea673a2e93ae","abstract_canon_sha256":"b134575fb898cd9bc594b95fc713028681fb18e36e7ad3c23e49ad430a2097f8"},"schema_version":"1.0"},"canonical_sha256":"6bf725bb6ea6773c9cae194397c0c83465e3ca05f726d7c4a29bb5c13389b94c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:49:45.968515Z","signature_b64":"O2FM0BYP4fDKKLkwwrFENOdmMwSdEPUV3+TpEjVoYaUP4YsQiDFk66RBvLh5x74bVs6Oi4TDiC+IitVsQFczBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6bf725bb6ea6773c9cae194397c0c83465e3ca05f726d7c4a29bb5c13389b94c","last_reissued_at":"2026-07-05T10:49:45.967964Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:49:45.967964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2408.05129","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:49:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aEjR74+0gLq9jYJ7b3BYhFIUkapFYGsIAXrDllvIGMhZb/LHnDM8bAH1camha2wAM7BiiB1LByxIX+g4NdgvBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:30:30.962509Z"},"content_sha256":"5582b7ee8bf9c0db575f3114667c06b7244bfc96046319c4362ed344acef2502","schema_version":"1.0","event_id":"sha256:5582b7ee8bf9c0db575f3114667c06b7244bfc96046319c4362ed344acef2502"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:NP3SLO3OUZ3TZHFODFBZPQGIGR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unboxing Default Argument Breaking Changes in 1 + 2 Data Science Libraries","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Arthur de Brito Bonif\\'acio, Cristiano Politowski, Daniel Prates, Ghizlane El Boussaidi, Jo\\~ao Eduardo Montandon, Luciana Lourdes Silva","submitted_at":"2024-08-09T15:38:45Z","abstract_excerpt":"Data Science (DS) has become a cornerstone for modern software, enabling data-driven decisions to improve companies services. Following modern software development practices, data scientists use third-party libraries to support their tasks. As the APIs provided by these tools often require an extensive list of arguments to be set up, data scientists rely on default values to simplify their usage. It turns out that these default values can change over time, leading to a specific type of breaking change, defined as Default Argument Breaking Change (DABC). This work reveals 93 DABCs in three Pyth"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.05129","kind":"arxiv","version":2},"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/2408.05129/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":"2026-07-05T10:49:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HEHy9b4dg6LFmeSlahSTZet+/32qkuPFPaLOpSRWBGG+aE6AwJh8A26rkjuogQLp0Hnl9Uv8Kk6gyIeD0o6ODQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:30:30.963035Z"},"content_sha256":"55f04ef5dfd53646c2746b38e5205ec50cfc0b8392e375d96387f349097002c2","schema_version":"1.0","event_id":"sha256:55f04ef5dfd53646c2746b38e5205ec50cfc0b8392e375d96387f349097002c2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NP3SLO3OUZ3TZHFODFBZPQGIGR/bundle.json","state_url":"https://pith.science/pith/NP3SLO3OUZ3TZHFODFBZPQGIGR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NP3SLO3OUZ3TZHFODFBZPQGIGR/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":"2026-08-04T08:30:30Z","links":{"resolver":"https://pith.science/pith/NP3SLO3OUZ3TZHFODFBZPQGIGR","bundle":"https://pith.science/pith/NP3SLO3OUZ3TZHFODFBZPQGIGR/bundle.json","state":"https://pith.science/pith/NP3SLO3OUZ3TZHFODFBZPQGIGR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NP3SLO3OUZ3TZHFODFBZPQGIGR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:NP3SLO3OUZ3TZHFODFBZPQGIGR","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":"b134575fb898cd9bc594b95fc713028681fb18e36e7ad3c23e49ad430a2097f8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.SE","submitted_at":"2024-08-09T15:38:45Z","title_canon_sha256":"56ff18619afadfdb8fddc97a037536e59a92a96159f908aac39aea673a2e93ae"},"schema_version":"1.0","source":{"id":"2408.05129","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.05129","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"arxiv_version","alias_value":"2408.05129v2","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.05129","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"pith_short_12","alias_value":"NP3SLO3OUZ3T","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"pith_short_16","alias_value":"NP3SLO3OUZ3TZHFO","created_at":"2026-07-05T10:49:45Z"},{"alias_kind":"pith_short_8","alias_value":"NP3SLO3O","created_at":"2026-07-05T10:49:45Z"}],"graph_snapshots":[{"event_id":"sha256:55f04ef5dfd53646c2746b38e5205ec50cfc0b8392e375d96387f349097002c2","target":"graph","created_at":"2026-07-05T10:49:45Z","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/2408.05129/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Data Science (DS) has become a cornerstone for modern software, enabling data-driven decisions to improve companies services. Following modern software development practices, data scientists use third-party libraries to support their tasks. As the APIs provided by these tools often require an extensive list of arguments to be set up, data scientists rely on default values to simplify their usage. It turns out that these default values can change over time, leading to a specific type of breaking change, defined as Default Argument Breaking Change (DABC). This work reveals 93 DABCs in three Pyth","authors_text":"Arthur de Brito Bonif\\'acio, Cristiano Politowski, Daniel Prates, Ghizlane El Boussaidi, Jo\\~ao Eduardo Montandon, Luciana Lourdes Silva","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.SE","submitted_at":"2024-08-09T15:38:45Z","title":"Unboxing Default Argument Breaking Changes in 1 + 2 Data Science Libraries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.05129","kind":"arxiv","version":2},"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":"sha256:5582b7ee8bf9c0db575f3114667c06b7244bfc96046319c4362ed344acef2502","target":"record","created_at":"2026-07-05T10:49:45Z","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":"b134575fb898cd9bc594b95fc713028681fb18e36e7ad3c23e49ad430a2097f8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.SE","submitted_at":"2024-08-09T15:38:45Z","title_canon_sha256":"56ff18619afadfdb8fddc97a037536e59a92a96159f908aac39aea673a2e93ae"},"schema_version":"1.0","source":{"id":"2408.05129","kind":"arxiv","version":2}},"canonical_sha256":"6bf725bb6ea6773c9cae194397c0c83465e3ca05f726d7c4a29bb5c13389b94c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6bf725bb6ea6773c9cae194397c0c83465e3ca05f726d7c4a29bb5c13389b94c","first_computed_at":"2026-07-05T10:49:45.967964Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:49:45.967964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O2FM0BYP4fDKKLkwwrFENOdmMwSdEPUV3+TpEjVoYaUP4YsQiDFk66RBvLh5x74bVs6Oi4TDiC+IitVsQFczBw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:49:45.968515Z","signed_message":"canonical_sha256_bytes"},"source_id":"2408.05129","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5582b7ee8bf9c0db575f3114667c06b7244bfc96046319c4362ed344acef2502","sha256:55f04ef5dfd53646c2746b38e5205ec50cfc0b8392e375d96387f349097002c2"],"state_sha256":"c719db318b551b9262311aa139998ea002e27e5f497bd0f46c50b4c9c0bfb459"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ofHG0nXlALssyZX0XNF7xwSBO+i2d2ORWNLp2Uw5tgMjduuWy6MamOv0ZVj4rseTJ+0qwoYflnyzaJOKqvgABw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T08:30:30.969383Z","bundle_sha256":"38875de350bc74a658e8f692a07dc15832b2a4b8ed1ee94fd9d6da7aef421f59"}}