{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:NHPEMFDFC2UYGKF3ZWEPEVTQQ4","short_pith_number":"pith:NHPEMFDF","canonical_record":{"source":{"id":"2606.22576","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-06-21T16:25:46Z","cross_cats_sorted":[],"title_canon_sha256":"bdbb58e8d7e990e627e30b80e9ae7e500e6faeff3be95b24adb7e31c1640345c","abstract_canon_sha256":"097f0b1885818a53643df66987888324b7207cf54c874cf48ea2640f7d61ed6b"},"schema_version":"1.0"},"canonical_sha256":"69de46146516a98328bbcd88f256708709ad9133fdccab230ab53f9fcf940649","source":{"kind":"arxiv","id":"2606.22576","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22576","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22576v1","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22576","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"pith_short_12","alias_value":"NHPEMFDFC2UY","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"pith_short_16","alias_value":"NHPEMFDFC2UYGKF3","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"pith_short_8","alias_value":"NHPEMFDF","created_at":"2026-06-23T02:13:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:NHPEMFDFC2UYGKF3ZWEPEVTQQ4","target":"record","payload":{"canonical_record":{"source":{"id":"2606.22576","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-06-21T16:25:46Z","cross_cats_sorted":[],"title_canon_sha256":"bdbb58e8d7e990e627e30b80e9ae7e500e6faeff3be95b24adb7e31c1640345c","abstract_canon_sha256":"097f0b1885818a53643df66987888324b7207cf54c874cf48ea2640f7d61ed6b"},"schema_version":"1.0"},"canonical_sha256":"69de46146516a98328bbcd88f256708709ad9133fdccab230ab53f9fcf940649","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T02:13:42.060273Z","signature_b64":"4S6JZ8i7dVLUYk8xao0hc20ao16/7u/tyPw609BYVWXshSl7S0whs6TpyzYZMjOtVm074T1keFCq12n9ZB95Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"69de46146516a98328bbcd88f256708709ad9133fdccab230ab53f9fcf940649","last_reissued_at":"2026-06-23T02:13:42.059891Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T02:13:42.059891Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.22576","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":"2026-06-23T02:13:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9axl00x530hGzbriGgBQQPUTx+pRAmP5+J3g0j7Vy14CDJNlc1VxExeTL5yOZTvx2+RWrj2+zoUnj30lMzJwAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T12:15:09.219094Z"},"content_sha256":"8b23b83da64c5937967794b3fd55afb786a82f6a6d44dc0e580f8a7018e07042","schema_version":"1.0","event_id":"sha256:8b23b83da64c5937967794b3fd55afb786a82f6a6d44dc0e580f8a7018e07042"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:NHPEMFDFC2UYGKF3ZWEPEVTQQ4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"What Characterizes Pairwise Modular Smells?","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Chenxing Zhong, Daniel Feitosa, He Zhang, Huang Huang, Paris Avgeriou, Wei Song","submitted_at":"2026-06-21T16:25:46Z","abstract_excerpt":"Enhancing the modular structure of existing systems has attracted substantial research interest, primarily through (1) software modularization and (2) identifying design issues (e.g., smells) as refactoring opportunities; however, both approaches often prove impractical to guide effective improvement. Inspired by both aforementioned approaches, our previous study introduced a novel and practical architectural smell -- called Pairwise Modular Smell (or PairSmell) -- for identifying flawed architectural decisions that necessitate further examination.\n  The objective of this study is to explain P"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22576","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/2606.22576/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":"2026-06-23T02:13:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"79YOHLFK7hZpyDc9J6g4pO1Vt9PSdYV+LhJGq8xuRaKRVZzanQNmRuHCeKryIL4Ysm2zu+0kX+cw/C7R8QAxAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T12:15:09.219488Z"},"content_sha256":"ca5503d63afee8576a891b0d7ab8034f9a84286465e5e42807583a1a4de7c99e","schema_version":"1.0","event_id":"sha256:ca5503d63afee8576a891b0d7ab8034f9a84286465e5e42807583a1a4de7c99e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NHPEMFDFC2UYGKF3ZWEPEVTQQ4/bundle.json","state_url":"https://pith.science/pith/NHPEMFDFC2UYGKF3ZWEPEVTQQ4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NHPEMFDFC2UYGKF3ZWEPEVTQQ4/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":"2026-06-30T12:15:09Z","links":{"resolver":"https://pith.science/pith/NHPEMFDFC2UYGKF3ZWEPEVTQQ4","bundle":"https://pith.science/pith/NHPEMFDFC2UYGKF3ZWEPEVTQQ4/bundle.json","state":"https://pith.science/pith/NHPEMFDFC2UYGKF3ZWEPEVTQQ4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NHPEMFDFC2UYGKF3ZWEPEVTQQ4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:NHPEMFDFC2UYGKF3ZWEPEVTQQ4","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":"097f0b1885818a53643df66987888324b7207cf54c874cf48ea2640f7d61ed6b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-06-21T16:25:46Z","title_canon_sha256":"bdbb58e8d7e990e627e30b80e9ae7e500e6faeff3be95b24adb7e31c1640345c"},"schema_version":"1.0","source":{"id":"2606.22576","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22576","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22576v1","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22576","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"pith_short_12","alias_value":"NHPEMFDFC2UY","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"pith_short_16","alias_value":"NHPEMFDFC2UYGKF3","created_at":"2026-06-23T02:13:42Z"},{"alias_kind":"pith_short_8","alias_value":"NHPEMFDF","created_at":"2026-06-23T02:13:42Z"}],"graph_snapshots":[{"event_id":"sha256:ca5503d63afee8576a891b0d7ab8034f9a84286465e5e42807583a1a4de7c99e","target":"graph","created_at":"2026-06-23T02:13:42Z","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/2606.22576/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Enhancing the modular structure of existing systems has attracted substantial research interest, primarily through (1) software modularization and (2) identifying design issues (e.g., smells) as refactoring opportunities; however, both approaches often prove impractical to guide effective improvement. Inspired by both aforementioned approaches, our previous study introduced a novel and practical architectural smell -- called Pairwise Modular Smell (or PairSmell) -- for identifying flawed architectural decisions that necessitate further examination.\n  The objective of this study is to explain P","authors_text":"Chenxing Zhong, Daniel Feitosa, He Zhang, Huang Huang, Paris Avgeriou, Wei Song","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-06-21T16:25:46Z","title":"What Characterizes Pairwise Modular Smells?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22576","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":"sha256:8b23b83da64c5937967794b3fd55afb786a82f6a6d44dc0e580f8a7018e07042","target":"record","created_at":"2026-06-23T02:13:42Z","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":"097f0b1885818a53643df66987888324b7207cf54c874cf48ea2640f7d61ed6b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-06-21T16:25:46Z","title_canon_sha256":"bdbb58e8d7e990e627e30b80e9ae7e500e6faeff3be95b24adb7e31c1640345c"},"schema_version":"1.0","source":{"id":"2606.22576","kind":"arxiv","version":1}},"canonical_sha256":"69de46146516a98328bbcd88f256708709ad9133fdccab230ab53f9fcf940649","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"69de46146516a98328bbcd88f256708709ad9133fdccab230ab53f9fcf940649","first_computed_at":"2026-06-23T02:13:42.059891Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T02:13:42.059891Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4S6JZ8i7dVLUYk8xao0hc20ao16/7u/tyPw609BYVWXshSl7S0whs6TpyzYZMjOtVm074T1keFCq12n9ZB95Cw==","signature_status":"signed_v1","signed_at":"2026-06-23T02:13:42.060273Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.22576","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b23b83da64c5937967794b3fd55afb786a82f6a6d44dc0e580f8a7018e07042","sha256:ca5503d63afee8576a891b0d7ab8034f9a84286465e5e42807583a1a4de7c99e"],"state_sha256":"70f01b0453cb1be4071c1655342c0ff81c9a1e597a4001f9303a7faf4fc18d7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mx7mvn4aUvXoLJGNUvXFrPLssGrvKz5vYt+xsvUOGWnWtqO4KCwVos1K1jimHyu++BzHpTAt0H6wsRUDW9drBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T12:15:09.221639Z","bundle_sha256":"05607399db379847c634072ab4cfb72f0168f80fe3f1cad1a77a62a595296419"}}