{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:CKOXTH7E6CPBCG6P3ROCPFUNH6","short_pith_number":"pith:CKOXTH7E","canonical_record":{"source":{"id":"2607.18155","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-07-20T16:53:05Z","cross_cats_sorted":[],"title_canon_sha256":"b9cf2b957a59d3f97c36c5665bce986f55843d98d8216c78716bb6acdb9de8c6","abstract_canon_sha256":"236290e26042ce77236fce9786ef9c584d8b39ada64608e9fada934369471e1a"},"schema_version":"1.0"},"canonical_sha256":"129d799fe4f09e111bcfdc5c27968d3f8f81ea2bc0d9f4216951e10b22a82806","source":{"kind":"arxiv","id":"2607.18155","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.18155","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"arxiv_version","alias_value":"2607.18155v1","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.18155","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"pith_short_12","alias_value":"CKOXTH7E6CPB","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"pith_short_16","alias_value":"CKOXTH7E6CPBCG6P","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"pith_short_8","alias_value":"CKOXTH7E","created_at":"2026-07-21T02:22:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:CKOXTH7E6CPBCG6P3ROCPFUNH6","target":"record","payload":{"canonical_record":{"source":{"id":"2607.18155","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-07-20T16:53:05Z","cross_cats_sorted":[],"title_canon_sha256":"b9cf2b957a59d3f97c36c5665bce986f55843d98d8216c78716bb6acdb9de8c6","abstract_canon_sha256":"236290e26042ce77236fce9786ef9c584d8b39ada64608e9fada934369471e1a"},"schema_version":"1.0"},"canonical_sha256":"129d799fe4f09e111bcfdc5c27968d3f8f81ea2bc0d9f4216951e10b22a82806","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-21T02:22:19.477223Z","signature_b64":"Bu8lP1xRvQlZzn/K5jbFSywvR8kxhBwNnX9g+FVvKec2DNl+agbL51CXcD0I2AyPweQFt6HS0xUUsP87fdAuCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"129d799fe4f09e111bcfdc5c27968d3f8f81ea2bc0d9f4216951e10b22a82806","last_reissued_at":"2026-07-21T02:22:19.476437Z","signature_status":"signed_v1","first_computed_at":"2026-07-21T02:22:19.476437Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.18155","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":"2026-07-21T02:22:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xgKAQ3LvcFgwc/446uN68/Yx4zGSDcm7haUvwJQHQiWGyXEZVgw+QuGxAm+GnrXzAUK9ZR1Mo8V1uEoJMGZYDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T09:59:42.693688Z"},"content_sha256":"8bb0af4ee6f709a292ed47a59f5e5903cc2050a08fdc8998d80f45cc6322e2aa","schema_version":"1.0","event_id":"sha256:8bb0af4ee6f709a292ed47a59f5e5903cc2050a08fdc8998d80f45cc6322e2aa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:CKOXTH7E6CPBCG6P3ROCPFUNH6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing Retrieval-Augmented Generation Systems with Chunk Coverage","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Jinhan Kim, Paolo Tonella, Samuele Pasini","submitted_at":"2026-07-20T16:53:05Z","abstract_excerpt":"Retrieval-Augmented Generation (RAG)-based systems\\footnote{For brevity, RAG-based systems are referred to as RAG systems throughout this paper.} are increasingly deployed in high-stakes settings where correct behaviour depends not only on the language model but also on the retrieval component that selects external documents at inference time. While existing RAG evaluation metrics assess retrieval and generation quality on a per-query basis, typically relying on query-level test oracles such as reference answers or relevance annotations, they provide limited insight into whether a test suite a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.18155","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/2607.18155/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":"2026-07-21T02:22:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/HQcqftXkBD//yAgRrAN+AlOC2V2JU0piUgJv2s+zmnArsb5ctEDx1CTWh0Uc4sDjsFJmVKv7q7Zc8xcDPfaAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T09:59:42.694232Z"},"content_sha256":"a9f1c0343816fc815fef52579e11474c18d1427012ab1535d2da5cd433a989a7","schema_version":"1.0","event_id":"sha256:a9f1c0343816fc815fef52579e11474c18d1427012ab1535d2da5cd433a989a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CKOXTH7E6CPBCG6P3ROCPFUNH6/bundle.json","state_url":"https://pith.science/pith/CKOXTH7E6CPBCG6P3ROCPFUNH6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CKOXTH7E6CPBCG6P3ROCPFUNH6/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":"2026-08-04T09:59:42Z","links":{"resolver":"https://pith.science/pith/CKOXTH7E6CPBCG6P3ROCPFUNH6","bundle":"https://pith.science/pith/CKOXTH7E6CPBCG6P3ROCPFUNH6/bundle.json","state":"https://pith.science/pith/CKOXTH7E6CPBCG6P3ROCPFUNH6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CKOXTH7E6CPBCG6P3ROCPFUNH6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:CKOXTH7E6CPBCG6P3ROCPFUNH6","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":"236290e26042ce77236fce9786ef9c584d8b39ada64608e9fada934369471e1a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-07-20T16:53:05Z","title_canon_sha256":"b9cf2b957a59d3f97c36c5665bce986f55843d98d8216c78716bb6acdb9de8c6"},"schema_version":"1.0","source":{"id":"2607.18155","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.18155","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"arxiv_version","alias_value":"2607.18155v1","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.18155","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"pith_short_12","alias_value":"CKOXTH7E6CPB","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"pith_short_16","alias_value":"CKOXTH7E6CPBCG6P","created_at":"2026-07-21T02:22:19Z"},{"alias_kind":"pith_short_8","alias_value":"CKOXTH7E","created_at":"2026-07-21T02:22:19Z"}],"graph_snapshots":[{"event_id":"sha256:a9f1c0343816fc815fef52579e11474c18d1427012ab1535d2da5cd433a989a7","target":"graph","created_at":"2026-07-21T02:22:19Z","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/2607.18155/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Retrieval-Augmented Generation (RAG)-based systems\\footnote{For brevity, RAG-based systems are referred to as RAG systems throughout this paper.} are increasingly deployed in high-stakes settings where correct behaviour depends not only on the language model but also on the retrieval component that selects external documents at inference time. While existing RAG evaluation metrics assess retrieval and generation quality on a per-query basis, typically relying on query-level test oracles such as reference answers or relevance annotations, they provide limited insight into whether a test suite a","authors_text":"Jinhan Kim, Paolo Tonella, Samuele Pasini","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-07-20T16:53:05Z","title":"Testing Retrieval-Augmented Generation Systems with Chunk Coverage"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.18155","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":"sha256:8bb0af4ee6f709a292ed47a59f5e5903cc2050a08fdc8998d80f45cc6322e2aa","target":"record","created_at":"2026-07-21T02:22:19Z","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":"236290e26042ce77236fce9786ef9c584d8b39ada64608e9fada934369471e1a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-07-20T16:53:05Z","title_canon_sha256":"b9cf2b957a59d3f97c36c5665bce986f55843d98d8216c78716bb6acdb9de8c6"},"schema_version":"1.0","source":{"id":"2607.18155","kind":"arxiv","version":1}},"canonical_sha256":"129d799fe4f09e111bcfdc5c27968d3f8f81ea2bc0d9f4216951e10b22a82806","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"129d799fe4f09e111bcfdc5c27968d3f8f81ea2bc0d9f4216951e10b22a82806","first_computed_at":"2026-07-21T02:22:19.476437Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-21T02:22:19.476437Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Bu8lP1xRvQlZzn/K5jbFSywvR8kxhBwNnX9g+FVvKec2DNl+agbL51CXcD0I2AyPweQFt6HS0xUUsP87fdAuCw==","signature_status":"signed_v1","signed_at":"2026-07-21T02:22:19.477223Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.18155","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8bb0af4ee6f709a292ed47a59f5e5903cc2050a08fdc8998d80f45cc6322e2aa","sha256:a9f1c0343816fc815fef52579e11474c18d1427012ab1535d2da5cd433a989a7"],"state_sha256":"ed5d441cd67df3fa0f3946174e5cc0c701c07f1239f0717f6f9141975a91436d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jGBsHzBmM6skz0nwvEXXEn2cpeF82bMCMJzIpKzmhSKvSAmBL3zjyt9T+NGBQLcg1Zm6NEe2WH4Vl4RWpwy2Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T09:59:42.698828Z","bundle_sha256":"c0be647866d578a772c987e39dffb3b25dab187e2606349ff797b86a2e10fb77"}}