{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:YSZUZ4VBSQ4VI5MR7ZWZO4VCSY","short_pith_number":"pith:YSZUZ4VB","canonical_record":{"source":{"id":"2602.17838","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-02-19T21:00:49Z","cross_cats_sorted":[],"title_canon_sha256":"81026f2695f1d9168a3af638e069a0934e59ac30cfc5c75e0a796f60a9526da6","abstract_canon_sha256":"53fed97d79d77f2e42b3581fe8f8dda42e9ab0ddacd8a783bcf2e62305151158"},"schema_version":"1.0"},"canonical_sha256":"c4b34cf2a19439547591fe6d9772a29609b5b58b7761c1792fef90dfdeec81f6","source":{"kind":"arxiv","id":"2602.17838","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.17838","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"arxiv_version","alias_value":"2602.17838v2","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.17838","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"pith_short_12","alias_value":"YSZUZ4VBSQ4V","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"pith_short_16","alias_value":"YSZUZ4VBSQ4VI5MR","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"pith_short_8","alias_value":"YSZUZ4VB","created_at":"2026-06-29T00:14:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:YSZUZ4VBSQ4VI5MR7ZWZO4VCSY","target":"record","payload":{"canonical_record":{"source":{"id":"2602.17838","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-02-19T21:00:49Z","cross_cats_sorted":[],"title_canon_sha256":"81026f2695f1d9168a3af638e069a0934e59ac30cfc5c75e0a796f60a9526da6","abstract_canon_sha256":"53fed97d79d77f2e42b3581fe8f8dda42e9ab0ddacd8a783bcf2e62305151158"},"schema_version":"1.0"},"canonical_sha256":"c4b34cf2a19439547591fe6d9772a29609b5b58b7761c1792fef90dfdeec81f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-29T00:14:02.196657Z","signature_b64":"7iLF0/yK1bzB+Xe9v0I0bmR+cvJh96He77MGxOEEHXukfyUk/hzze4lh9JhBNcpyKJ5fu0bEy5NlO2RPgnIHBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4b34cf2a19439547591fe6d9772a29609b5b58b7761c1792fef90dfdeec81f6","last_reissued_at":"2026-06-29T00:14:02.196099Z","signature_status":"signed_v1","first_computed_at":"2026-06-29T00:14:02.196099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.17838","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":"2026-06-29T00:14:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o4HVLzbpj0+BppVlb44/HcZ3JWikf9shMHti6tPdzc5BTPz1X49Xf+/4l6GF3sY+Vc4ZBJNO1ptnygfdHSRGBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T17:25:20.026041Z"},"content_sha256":"6dc45dde8041b1a55088ef5d64e714063d414f716fe45f0bcd1ac779bd9a1f95","schema_version":"1.0","event_id":"sha256:6dc45dde8041b1a55088ef5d64e714063d414f716fe45f0bcd1ac779bd9a1f95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:YSZUZ4VBSQ4VI5MR7ZWZO4VCSY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using Mutation-Analysis to Examine an LLM's Ability to Summarize Code","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Bogdan Vasilescu, Lara Khatib, Meiyappan Nagappan, Michael Pu","submitted_at":"2026-02-19T21:00:49Z","abstract_excerpt":"As developers increasingly rely on LLM-generated code summaries for documentation, testing, and review, it is important to study whether these summaries accurately reflect what the program actually does. LLMs often produce confident descriptions of what the code looks like it should do (intent), while missing subtle edge cases or logic changes that define what it actually does (behavior). We present a mutation-based evaluation methodology that directly tests whether a summary truly matches the code's logic. Our approach generates a summary, injects a targeted mutation into the code, and checks"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.17838","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/2602.17838/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":"2026-06-29T00:14:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vSnmgbo0/hyQivI+6zPCsDepEW0dZuDGWK7kRk4R2+9jZCkvhx50US7xuyaw0wVEsBfhX5LAUQjFd5L1C4a6DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T17:25:20.026576Z"},"content_sha256":"482e2a85e053ea3aa110a3ba52342aeb672926c84b24907e1c1487596c287bf0","schema_version":"1.0","event_id":"sha256:482e2a85e053ea3aa110a3ba52342aeb672926c84b24907e1c1487596c287bf0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YSZUZ4VBSQ4VI5MR7ZWZO4VCSY/bundle.json","state_url":"https://pith.science/pith/YSZUZ4VBSQ4VI5MR7ZWZO4VCSY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YSZUZ4VBSQ4VI5MR7ZWZO4VCSY/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":"2026-08-14T17:25:20Z","links":{"resolver":"https://pith.science/pith/YSZUZ4VBSQ4VI5MR7ZWZO4VCSY","bundle":"https://pith.science/pith/YSZUZ4VBSQ4VI5MR7ZWZO4VCSY/bundle.json","state":"https://pith.science/pith/YSZUZ4VBSQ4VI5MR7ZWZO4VCSY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YSZUZ4VBSQ4VI5MR7ZWZO4VCSY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:YSZUZ4VBSQ4VI5MR7ZWZO4VCSY","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":"53fed97d79d77f2e42b3581fe8f8dda42e9ab0ddacd8a783bcf2e62305151158","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-02-19T21:00:49Z","title_canon_sha256":"81026f2695f1d9168a3af638e069a0934e59ac30cfc5c75e0a796f60a9526da6"},"schema_version":"1.0","source":{"id":"2602.17838","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.17838","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"arxiv_version","alias_value":"2602.17838v2","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.17838","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"pith_short_12","alias_value":"YSZUZ4VBSQ4V","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"pith_short_16","alias_value":"YSZUZ4VBSQ4VI5MR","created_at":"2026-06-29T00:14:02Z"},{"alias_kind":"pith_short_8","alias_value":"YSZUZ4VB","created_at":"2026-06-29T00:14:02Z"}],"graph_snapshots":[{"event_id":"sha256:482e2a85e053ea3aa110a3ba52342aeb672926c84b24907e1c1487596c287bf0","target":"graph","created_at":"2026-06-29T00:14:02Z","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/2602.17838/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As developers increasingly rely on LLM-generated code summaries for documentation, testing, and review, it is important to study whether these summaries accurately reflect what the program actually does. LLMs often produce confident descriptions of what the code looks like it should do (intent), while missing subtle edge cases or logic changes that define what it actually does (behavior). We present a mutation-based evaluation methodology that directly tests whether a summary truly matches the code's logic. Our approach generates a summary, injects a targeted mutation into the code, and checks","authors_text":"Bogdan Vasilescu, Lara Khatib, Meiyappan Nagappan, Michael Pu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-02-19T21:00:49Z","title":"Using Mutation-Analysis to Examine an LLM's Ability to Summarize Code"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.17838","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":"sha256:6dc45dde8041b1a55088ef5d64e714063d414f716fe45f0bcd1ac779bd9a1f95","target":"record","created_at":"2026-06-29T00:14:02Z","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":"53fed97d79d77f2e42b3581fe8f8dda42e9ab0ddacd8a783bcf2e62305151158","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-02-19T21:00:49Z","title_canon_sha256":"81026f2695f1d9168a3af638e069a0934e59ac30cfc5c75e0a796f60a9526da6"},"schema_version":"1.0","source":{"id":"2602.17838","kind":"arxiv","version":2}},"canonical_sha256":"c4b34cf2a19439547591fe6d9772a29609b5b58b7761c1792fef90dfdeec81f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4b34cf2a19439547591fe6d9772a29609b5b58b7761c1792fef90dfdeec81f6","first_computed_at":"2026-06-29T00:14:02.196099Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-29T00:14:02.196099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7iLF0/yK1bzB+Xe9v0I0bmR+cvJh96He77MGxOEEHXukfyUk/hzze4lh9JhBNcpyKJ5fu0bEy5NlO2RPgnIHBw==","signature_status":"signed_v1","signed_at":"2026-06-29T00:14:02.196657Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.17838","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6dc45dde8041b1a55088ef5d64e714063d414f716fe45f0bcd1ac779bd9a1f95","sha256:482e2a85e053ea3aa110a3ba52342aeb672926c84b24907e1c1487596c287bf0"],"state_sha256":"919a222f92d55412defb232c1ab53dbd8275d8a8bde41b3d6ac95eddc818cb1d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FfoRn9a280q38ux4szEGQkKzaY6tWWE4RdBbo0468ub5uwReJ0QIIwnYp54/YmgTxS9CmgDTshSQU+WJdc+nBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T17:25:20.036438Z","bundle_sha256":"16edc6448e5f665e706ef3cf2b38fa2d698da5cbfbf7a48374a082630c346518"}}