{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:USGUCVD36DSG2KVW7BMOFT3HGP","short_pith_number":"pith:USGUCVD3","canonical_record":{"source":{"id":"1601.02351","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2016-01-11T07:56:34Z","cross_cats_sorted":[],"title_canon_sha256":"ed5c537e53e2b8171f540ec072451a3ec38c3607b77e955164f8368412e20f0d","abstract_canon_sha256":"1f287e9e4cab2d6049c89a427d599db3094bfd25a6cd842f72ffa7b813645ba1"},"schema_version":"1.0"},"canonical_sha256":"a48d41547bf0e46d2ab6f858e2cf6733edc8ace30883d630d910fe111072bcda","source":{"kind":"arxiv","id":"1601.02351","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.02351","created_at":"2026-05-18T01:23:06Z"},{"alias_kind":"arxiv_version","alias_value":"1601.02351v1","created_at":"2026-05-18T01:23:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.02351","created_at":"2026-05-18T01:23:06Z"},{"alias_kind":"pith_short_12","alias_value":"USGUCVD36DSG","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"USGUCVD36DSG2KVW","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"USGUCVD3","created_at":"2026-05-18T12:30:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:USGUCVD36DSG2KVW7BMOFT3HGP","target":"record","payload":{"canonical_record":{"source":{"id":"1601.02351","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2016-01-11T07:56:34Z","cross_cats_sorted":[],"title_canon_sha256":"ed5c537e53e2b8171f540ec072451a3ec38c3607b77e955164f8368412e20f0d","abstract_canon_sha256":"1f287e9e4cab2d6049c89a427d599db3094bfd25a6cd842f72ffa7b813645ba1"},"schema_version":"1.0"},"canonical_sha256":"a48d41547bf0e46d2ab6f858e2cf6733edc8ace30883d630d910fe111072bcda","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:06.653790Z","signature_b64":"wSGzDnBUpDHKDU4WzNubvt5v07zx2qJQrF+JoD9E78x1pG2IcWs7dzyFqaRXzwax0Qu+g8VqCuuvY9Y5LcZIBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a48d41547bf0e46d2ab6f858e2cf6733edc8ace30883d630d910fe111072bcda","last_reissued_at":"2026-05-18T01:23:06.653333Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:06.653333Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.02351","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":"2026-05-18T01:23:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M9IlcRX9+PUzcN4UH8Xfnz+BxJ3Ex4gG3140OjjcMdxL7r5CyTJEiTNrAYU3ibZ3H5SnH11lctLoT45LzuG4AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T09:57:08.116331Z"},"content_sha256":"91f20abfd993d93a94c132976eb9629746c5e61ed030f5a8daa1779e4adcf1dc","schema_version":"1.0","event_id":"sha256:91f20abfd993d93a94c132976eb9629746c5e61ed030f5a8daa1779e4adcf1dc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:USGUCVD36DSG2KVW7BMOFT3HGP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Assessing and Improving the Mutation Testing Practice of PIT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Anthony Ventresque, Christopher Henard, Mike Papadakis, Thomas Laurent, Yves Le Traon (CSC)","submitted_at":"2016-01-11T07:56:34Z","abstract_excerpt":"Mutation testing is used extensively to support the experimentation of software engineering studies. Its application to real-world projects is possible thanks to modern tools that automate the whole mutation analysis process. However, popular mutation testing tools use a restrictive set of mutants which do not conform to the community standards as supported by the mutation testing literature. This can be problematic since the effectiveness of mutation depends on its mutants. We therefore examine how effective are the mutants of a popular mutation testing tool, named PIT, compared to comprehens"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.02351","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":""},"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":"2026-05-18T01:23:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tkTeJ6F7eUDkYGWu52d6wcnrMfD0JnpxU6+8KaQhm4QkylkXhmd6op6eVvmZuVwcxXy/AK/wBTVLk8rOJXCuAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T09:57:08.116691Z"},"content_sha256":"45af94f64986852da127d6fd798760324a49425d9aaf225d9c82e706c37e4f78","schema_version":"1.0","event_id":"sha256:45af94f64986852da127d6fd798760324a49425d9aaf225d9c82e706c37e4f78"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/USGUCVD36DSG2KVW7BMOFT3HGP/bundle.json","state_url":"https://pith.science/pith/USGUCVD36DSG2KVW7BMOFT3HGP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/USGUCVD36DSG2KVW7BMOFT3HGP/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":"2026-05-20T09:57:08Z","links":{"resolver":"https://pith.science/pith/USGUCVD36DSG2KVW7BMOFT3HGP","bundle":"https://pith.science/pith/USGUCVD36DSG2KVW7BMOFT3HGP/bundle.json","state":"https://pith.science/pith/USGUCVD36DSG2KVW7BMOFT3HGP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/USGUCVD36DSG2KVW7BMOFT3HGP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:USGUCVD36DSG2KVW7BMOFT3HGP","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":"1f287e9e4cab2d6049c89a427d599db3094bfd25a6cd842f72ffa7b813645ba1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2016-01-11T07:56:34Z","title_canon_sha256":"ed5c537e53e2b8171f540ec072451a3ec38c3607b77e955164f8368412e20f0d"},"schema_version":"1.0","source":{"id":"1601.02351","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.02351","created_at":"2026-05-18T01:23:06Z"},{"alias_kind":"arxiv_version","alias_value":"1601.02351v1","created_at":"2026-05-18T01:23:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.02351","created_at":"2026-05-18T01:23:06Z"},{"alias_kind":"pith_short_12","alias_value":"USGUCVD36DSG","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"USGUCVD36DSG2KVW","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"USGUCVD3","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:45af94f64986852da127d6fd798760324a49425d9aaf225d9c82e706c37e4f78","target":"graph","created_at":"2026-05-18T01:23:06Z","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"},"paper":{"abstract_excerpt":"Mutation testing is used extensively to support the experimentation of software engineering studies. Its application to real-world projects is possible thanks to modern tools that automate the whole mutation analysis process. However, popular mutation testing tools use a restrictive set of mutants which do not conform to the community standards as supported by the mutation testing literature. This can be problematic since the effectiveness of mutation depends on its mutants. We therefore examine how effective are the mutants of a popular mutation testing tool, named PIT, compared to comprehens","authors_text":"Anthony Ventresque, Christopher Henard, Mike Papadakis, Thomas Laurent, Yves Le Traon (CSC)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2016-01-11T07:56:34Z","title":"Assessing and Improving the Mutation Testing Practice of PIT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.02351","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":"sha256:91f20abfd993d93a94c132976eb9629746c5e61ed030f5a8daa1779e4adcf1dc","target":"record","created_at":"2026-05-18T01:23:06Z","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":"1f287e9e4cab2d6049c89a427d599db3094bfd25a6cd842f72ffa7b813645ba1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2016-01-11T07:56:34Z","title_canon_sha256":"ed5c537e53e2b8171f540ec072451a3ec38c3607b77e955164f8368412e20f0d"},"schema_version":"1.0","source":{"id":"1601.02351","kind":"arxiv","version":1}},"canonical_sha256":"a48d41547bf0e46d2ab6f858e2cf6733edc8ace30883d630d910fe111072bcda","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a48d41547bf0e46d2ab6f858e2cf6733edc8ace30883d630d910fe111072bcda","first_computed_at":"2026-05-18T01:23:06.653333Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:06.653333Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wSGzDnBUpDHKDU4WzNubvt5v07zx2qJQrF+JoD9E78x1pG2IcWs7dzyFqaRXzwax0Qu+g8VqCuuvY9Y5LcZIBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:06.653790Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.02351","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:91f20abfd993d93a94c132976eb9629746c5e61ed030f5a8daa1779e4adcf1dc","sha256:45af94f64986852da127d6fd798760324a49425d9aaf225d9c82e706c37e4f78"],"state_sha256":"4864e00c349681ba38384b9ce72412b0f4049c49d07e540b7c059b0d4b3a6379"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2rR3XCVkfh8zUo+c0wP1jCZqIpXcvbUpJgNcupvOHNRDYBQqZWI9UoQqC5PeqNUYNMHXnWYudEUYc+JRSalDBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T09:57:08.118637Z","bundle_sha256":"ac5ba5864ac84e4082f692c2a003be3cb998781f7dd763ef3b1f4aaf440f1c97"}}