{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:DLYSSMWLBK5NXECXJBCI6GXDJS","short_pith_number":"pith:DLYSSMWL","canonical_record":{"source":{"id":"2606.26116","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-05-22T17:19:56Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"380930c60891581c9d1526bb06dd95c01faaa5a3e2cf530fc1e5152a237d65b1","abstract_canon_sha256":"c2c07c949753f39aa9ba2910d682160773cfcc6003a23586f821f11128d887a3"},"schema_version":"1.0"},"canonical_sha256":"1af12932cb0abadb905748448f1ae34ca80698f51dbbc5041b4a383cc7cedbe4","source":{"kind":"arxiv","id":"2606.26116","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.26116","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"arxiv_version","alias_value":"2606.26116v1","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.26116","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"pith_short_12","alias_value":"DLYSSMWLBK5N","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"pith_short_16","alias_value":"DLYSSMWLBK5NXECX","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"pith_short_8","alias_value":"DLYSSMWL","created_at":"2026-06-26T00:15:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:DLYSSMWLBK5NXECXJBCI6GXDJS","target":"record","payload":{"canonical_record":{"source":{"id":"2606.26116","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-05-22T17:19:56Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"380930c60891581c9d1526bb06dd95c01faaa5a3e2cf530fc1e5152a237d65b1","abstract_canon_sha256":"c2c07c949753f39aa9ba2910d682160773cfcc6003a23586f821f11128d887a3"},"schema_version":"1.0"},"canonical_sha256":"1af12932cb0abadb905748448f1ae34ca80698f51dbbc5041b4a383cc7cedbe4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-26T00:15:26.613633Z","signature_b64":"nYtdVshDZ+d1mVujBsR1Uw5LyLUbgYN4hzndt8YNIG0a34ZLxda3yCbuRARPFrEJjQI/PrR4vXz60O9/XaizBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1af12932cb0abadb905748448f1ae34ca80698f51dbbc5041b4a383cc7cedbe4","last_reissued_at":"2026-06-26T00:15:26.613235Z","signature_status":"signed_v1","first_computed_at":"2026-06-26T00:15:26.613235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.26116","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":"2026-06-26T00:15:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VTwoUHw6qOKAum/eRX+uyRdhoYukVVO1iloF8LXp02TJ9cPje4xp/JfbxZ6ArU7fObvQT8n9MXdqmeGyzOmrBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T20:08:52.527048Z"},"content_sha256":"44eb33626979f13d9041318546851c5551499826a9c71235d4e4011bb9b7cfb8","schema_version":"1.0","event_id":"sha256:44eb33626979f13d9041318546851c5551499826a9c71235d4e4011bb9b7cfb8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:DLYSSMWLBK5NXECXJBCI6GXDJS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Divergent Recommendations, Convergent Diagnoses: Cross-Provider Failure-Mode Convergence in AI Commercial Recommendation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CY","authors_text":"Keller Maloney, Noah Lehman, Sarah Xu, Will Jack","submitted_at":"2026-05-22T17:19:56Z","abstract_excerpt":"A brand whose customers use both ChatGPT and Claude for product recommendations faces a strategic choice: a single optimization playbook, or one per provider? Across 215 commercially-framed prompts in four measurement batches, the two providers disagree on which brands they recommend roughly two-thirds of the time (cross-provider recommendation Jaccard 0.35, below the 0.50-0.61 same-prompt rerun baseline). The picks diverge. But when neither provider recommends a brand, we classify the failure into one of three modes -- discoverability (the brand never reaches the model), compellingness (it re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.26116","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/2606.26116/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":"2026-06-26T00:15:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"18h3jPSAhbyZg2PBnv0Co1jqtobFitPul6BZV1DdHH1w7jVgvq+h6rHTHZnAFqD4ZIwPwCsv+ErJjxsrJInnDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T20:08:52.527452Z"},"content_sha256":"43d9f346ecac707781658849006ab720d39227779004d04aeecc0c9fddddcd56","schema_version":"1.0","event_id":"sha256:43d9f346ecac707781658849006ab720d39227779004d04aeecc0c9fddddcd56"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DLYSSMWLBK5NXECXJBCI6GXDJS/bundle.json","state_url":"https://pith.science/pith/DLYSSMWLBK5NXECXJBCI6GXDJS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DLYSSMWLBK5NXECXJBCI6GXDJS/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":"2026-07-01T20:08:52Z","links":{"resolver":"https://pith.science/pith/DLYSSMWLBK5NXECXJBCI6GXDJS","bundle":"https://pith.science/pith/DLYSSMWLBK5NXECXJBCI6GXDJS/bundle.json","state":"https://pith.science/pith/DLYSSMWLBK5NXECXJBCI6GXDJS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DLYSSMWLBK5NXECXJBCI6GXDJS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:DLYSSMWLBK5NXECXJBCI6GXDJS","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":"c2c07c949753f39aa9ba2910d682160773cfcc6003a23586f821f11128d887a3","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-05-22T17:19:56Z","title_canon_sha256":"380930c60891581c9d1526bb06dd95c01faaa5a3e2cf530fc1e5152a237d65b1"},"schema_version":"1.0","source":{"id":"2606.26116","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.26116","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"arxiv_version","alias_value":"2606.26116v1","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.26116","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"pith_short_12","alias_value":"DLYSSMWLBK5N","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"pith_short_16","alias_value":"DLYSSMWLBK5NXECX","created_at":"2026-06-26T00:15:26Z"},{"alias_kind":"pith_short_8","alias_value":"DLYSSMWL","created_at":"2026-06-26T00:15:26Z"}],"graph_snapshots":[{"event_id":"sha256:43d9f346ecac707781658849006ab720d39227779004d04aeecc0c9fddddcd56","target":"graph","created_at":"2026-06-26T00:15:26Z","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/2606.26116/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A brand whose customers use both ChatGPT and Claude for product recommendations faces a strategic choice: a single optimization playbook, or one per provider? Across 215 commercially-framed prompts in four measurement batches, the two providers disagree on which brands they recommend roughly two-thirds of the time (cross-provider recommendation Jaccard 0.35, below the 0.50-0.61 same-prompt rerun baseline). The picks diverge. But when neither provider recommends a brand, we classify the failure into one of three modes -- discoverability (the brand never reaches the model), compellingness (it re","authors_text":"Keller Maloney, Noah Lehman, Sarah Xu, Will Jack","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-05-22T17:19:56Z","title":"Divergent Recommendations, Convergent Diagnoses: Cross-Provider Failure-Mode Convergence in AI Commercial Recommendation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.26116","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":"sha256:44eb33626979f13d9041318546851c5551499826a9c71235d4e4011bb9b7cfb8","target":"record","created_at":"2026-06-26T00:15:26Z","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":"c2c07c949753f39aa9ba2910d682160773cfcc6003a23586f821f11128d887a3","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2026-05-22T17:19:56Z","title_canon_sha256":"380930c60891581c9d1526bb06dd95c01faaa5a3e2cf530fc1e5152a237d65b1"},"schema_version":"1.0","source":{"id":"2606.26116","kind":"arxiv","version":1}},"canonical_sha256":"1af12932cb0abadb905748448f1ae34ca80698f51dbbc5041b4a383cc7cedbe4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1af12932cb0abadb905748448f1ae34ca80698f51dbbc5041b4a383cc7cedbe4","first_computed_at":"2026-06-26T00:15:26.613235Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-26T00:15:26.613235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nYtdVshDZ+d1mVujBsR1Uw5LyLUbgYN4hzndt8YNIG0a34ZLxda3yCbuRARPFrEJjQI/PrR4vXz60O9/XaizBQ==","signature_status":"signed_v1","signed_at":"2026-06-26T00:15:26.613633Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.26116","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:44eb33626979f13d9041318546851c5551499826a9c71235d4e4011bb9b7cfb8","sha256:43d9f346ecac707781658849006ab720d39227779004d04aeecc0c9fddddcd56"],"state_sha256":"ec9152caf5bbc9c574405d7dc91218445b757cebe24acb5df812f9e24defa4f8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t55/WkBY0IiPjcg9Uo+j5pRUQ3WMMhyCucremPo5dkB4EjX7zhw/dXd6HTC3BEP6zJSv0t1BuAAXbBhR9BcXDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T20:08:52.529671Z","bundle_sha256":"6370017a85556b134e81d7c1ac5c4e5f7486cfc39d1f93a738a8601cd15c7842"}}