{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:CGJXLYMIQSBZEWHQKOCK5XMLQU","short_pith_number":"pith:CGJXLYMI","canonical_record":{"source":{"id":"2607.20730","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-22T21:04:51Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"c6b2ff241b9b12680295ff36b14b88db836a7033da87606640a1abdc9f689bdc","abstract_canon_sha256":"b6d79a2dbfee66411246fbf2c524494bae81c039cc0155894a5f2692d02f50b8"},"schema_version":"1.0"},"canonical_sha256":"119375e18884839258f05384aedd8b8503e430b1d49c5fce3750a1a43ef203f7","source":{"kind":"arxiv","id":"2607.20730","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.20730","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"arxiv_version","alias_value":"2607.20730v1","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.20730","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"pith_short_12","alias_value":"CGJXLYMIQSBZ","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"pith_short_16","alias_value":"CGJXLYMIQSBZEWHQ","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"pith_short_8","alias_value":"CGJXLYMI","created_at":"2026-07-24T00:23:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:CGJXLYMIQSBZEWHQKOCK5XMLQU","target":"record","payload":{"canonical_record":{"source":{"id":"2607.20730","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-22T21:04:51Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"c6b2ff241b9b12680295ff36b14b88db836a7033da87606640a1abdc9f689bdc","abstract_canon_sha256":"b6d79a2dbfee66411246fbf2c524494bae81c039cc0155894a5f2692d02f50b8"},"schema_version":"1.0"},"canonical_sha256":"119375e18884839258f05384aedd8b8503e430b1d49c5fce3750a1a43ef203f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-24T00:23:31.690917Z","signature_b64":"gt2OdcJAru62P2Gs+PfrshvdOLizo4Azs9IM8MLI+VAG1aP382fFRaUBQX43ATcR0NCan60PnBGy3gqLPYG9CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"119375e18884839258f05384aedd8b8503e430b1d49c5fce3750a1a43ef203f7","last_reissued_at":"2026-07-24T00:23:31.690072Z","signature_status":"signed_v1","first_computed_at":"2026-07-24T00:23:31.690072Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.20730","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":"2026-07-24T00:23:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+98DjHG/+MaYSjEZGtzyH3fyNSn7KGEe1ii3mE47j3AwfDYZcOY8ENF3aGz2B2R8r0WlkmydxK99TRxKYD9qBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T00:49:56.189739Z"},"content_sha256":"b730b327bff611a2b594226e005a0839ed1561551cad928ef51bab9c1b7a3f01","schema_version":"1.0","event_id":"sha256:b730b327bff611a2b594226e005a0839ed1561551cad928ef51bab9c1b7a3f01"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:CGJXLYMIQSBZEWHQKOCK5XMLQU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"GPE: Evaluating Robust Evidence Aggregation for Fact Verification under Controllable GEO-Style Poisoning","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CR","authors_text":"Jiamou Liu, Liehuang Zhu, Pengtao Kou, Xiaomei Yuan, Zhaoqi Wang, Zhen Li, Zijian Zhang","submitted_at":"2026-07-22T21:04:51Z","abstract_excerpt":"Large language models increasingly use search tools to retrieve up-to-date information, introducing a new attack surface in which retrieved documents can be manipulated. This risk is amplified by the development of generative engine optimization, which can make selected content more likely to be retrieved, cited, and adopted by models. Existing fact-verification benchmarks and evaluation frameworks do not provide the controlled evidence environments needed to assess robustness against GEO poisoning. We therefore propose GPE, which consists of a multi-domain fact-verification benchmark and an e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.20730","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/2607.20730/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":"2026-07-24T00:23:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mDh97jLSJ9xYEJEfwGwLA86mO25F2xNYJyhZ50UcSTMq5TlcnStHRgN8lv6a/uOX3AA6QdPkLjt8KnaRMvzzAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T00:49:56.190320Z"},"content_sha256":"59f4e11b63979140514be510de5e95bddc0e64b76d0c09c5db5fe8afa8dc98f7","schema_version":"1.0","event_id":"sha256:59f4e11b63979140514be510de5e95bddc0e64b76d0c09c5db5fe8afa8dc98f7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CGJXLYMIQSBZEWHQKOCK5XMLQU/bundle.json","state_url":"https://pith.science/pith/CGJXLYMIQSBZEWHQKOCK5XMLQU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CGJXLYMIQSBZEWHQKOCK5XMLQU/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":"2026-08-18T00:49:56Z","links":{"resolver":"https://pith.science/pith/CGJXLYMIQSBZEWHQKOCK5XMLQU","bundle":"https://pith.science/pith/CGJXLYMIQSBZEWHQKOCK5XMLQU/bundle.json","state":"https://pith.science/pith/CGJXLYMIQSBZEWHQKOCK5XMLQU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CGJXLYMIQSBZEWHQKOCK5XMLQU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:CGJXLYMIQSBZEWHQKOCK5XMLQU","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":"b6d79a2dbfee66411246fbf2c524494bae81c039cc0155894a5f2692d02f50b8","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-22T21:04:51Z","title_canon_sha256":"c6b2ff241b9b12680295ff36b14b88db836a7033da87606640a1abdc9f689bdc"},"schema_version":"1.0","source":{"id":"2607.20730","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.20730","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"arxiv_version","alias_value":"2607.20730v1","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.20730","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"pith_short_12","alias_value":"CGJXLYMIQSBZ","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"pith_short_16","alias_value":"CGJXLYMIQSBZEWHQ","created_at":"2026-07-24T00:23:31Z"},{"alias_kind":"pith_short_8","alias_value":"CGJXLYMI","created_at":"2026-07-24T00:23:31Z"}],"graph_snapshots":[{"event_id":"sha256:59f4e11b63979140514be510de5e95bddc0e64b76d0c09c5db5fe8afa8dc98f7","target":"graph","created_at":"2026-07-24T00:23:31Z","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/2607.20730/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large language models increasingly use search tools to retrieve up-to-date information, introducing a new attack surface in which retrieved documents can be manipulated. This risk is amplified by the development of generative engine optimization, which can make selected content more likely to be retrieved, cited, and adopted by models. Existing fact-verification benchmarks and evaluation frameworks do not provide the controlled evidence environments needed to assess robustness against GEO poisoning. We therefore propose GPE, which consists of a multi-domain fact-verification benchmark and an e","authors_text":"Jiamou Liu, Liehuang Zhu, Pengtao Kou, Xiaomei Yuan, Zhaoqi Wang, Zhen Li, Zijian Zhang","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-22T21:04:51Z","title":"GPE: Evaluating Robust Evidence Aggregation for Fact Verification under Controllable GEO-Style Poisoning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.20730","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:b730b327bff611a2b594226e005a0839ed1561551cad928ef51bab9c1b7a3f01","target":"record","created_at":"2026-07-24T00:23:31Z","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":"b6d79a2dbfee66411246fbf2c524494bae81c039cc0155894a5f2692d02f50b8","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-07-22T21:04:51Z","title_canon_sha256":"c6b2ff241b9b12680295ff36b14b88db836a7033da87606640a1abdc9f689bdc"},"schema_version":"1.0","source":{"id":"2607.20730","kind":"arxiv","version":1}},"canonical_sha256":"119375e18884839258f05384aedd8b8503e430b1d49c5fce3750a1a43ef203f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"119375e18884839258f05384aedd8b8503e430b1d49c5fce3750a1a43ef203f7","first_computed_at":"2026-07-24T00:23:31.690072Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-24T00:23:31.690072Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gt2OdcJAru62P2Gs+PfrshvdOLizo4Azs9IM8MLI+VAG1aP382fFRaUBQX43ATcR0NCan60PnBGy3gqLPYG9CQ==","signature_status":"signed_v1","signed_at":"2026-07-24T00:23:31.690917Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.20730","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b730b327bff611a2b594226e005a0839ed1561551cad928ef51bab9c1b7a3f01","sha256:59f4e11b63979140514be510de5e95bddc0e64b76d0c09c5db5fe8afa8dc98f7"],"state_sha256":"c673c61ccd44cd2ddb8977b476cdd93aa3e8f553956d74d87f499a5fb2ae1801"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F3vDAiEIluJV0CmITXtSgZ3UBdo+czMiPl72cUQXn3tihe+QjwajNnnRSUqd38DRF9y4IxIqI+ZBhtI40Vq3CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T00:49:56.196462Z","bundle_sha256":"86cee3388f2ab8f1cd03c933aa173a8b67839056be0e9f55cee8c6cf59134b88"}}