{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:YJHUIHNRJF4HQTPW3I5FDETDPF","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":"8541a53c155673abd50ce1d63b6edcf9f5761509c13d8a4c7f0cff52094995db","cross_cats_sorted":["cs.CL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-08T17:07:11Z","title_canon_sha256":"f14ea9a45e82c723a8524a2cc99372dc64a613fd099c487250c10169eb7f1a8b"},"schema_version":"1.0","source":{"id":"2608.08239","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.08239","created_at":"2026-08-11T01:22:05Z"},{"alias_kind":"arxiv_version","alias_value":"2608.08239v1","created_at":"2026-08-11T01:22:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.08239","created_at":"2026-08-11T01:22:05Z"},{"alias_kind":"pith_short_12","alias_value":"YJHUIHNRJF4H","created_at":"2026-08-11T01:22:05Z"},{"alias_kind":"pith_short_16","alias_value":"YJHUIHNRJF4HQTPW","created_at":"2026-08-11T01:22:05Z"},{"alias_kind":"pith_short_8","alias_value":"YJHUIHNR","created_at":"2026-08-11T01:22:05Z"}],"graph_snapshots":[{"event_id":"sha256:50ea00fae502bb3a0ecf81ad2275dc89604b1b7a7b780a14ded43383b147614c","target":"graph","created_at":"2026-08-11T01:22:05Z","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/2608.08239/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"LLM routers promise efficiency by matching each request to the cheapest adequate model, and are increasingly applied per step inside multi-step agents. Yet agentic routers are evaluated like single-turn routers: by replaying logged trajectories and substituting another model's recorded outputs, assuming the rest of the trajectory is unaffected. We test this assumption with branching rollouts: we fork live SWE-bench agent trajectories at controlled points, rebuild the environment, continue each fork with a different model, and compare against same-model control forks that isolate sampling and r","authors_text":"Ashritha Gonuguntla","cross_cats":["cs.CL"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-08T17:07:11Z","title":"The Replay Gap: Static Evaluation of Model Switching in LLM Agents Scores the Wrong World"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.08239","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":"sha256:3797b40a9b2cb7ff217e09937c1380a72a6be5784d9a87a5f1f29b7e7e52a7b5","target":"record","created_at":"2026-08-11T01:22:05Z","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":"8541a53c155673abd50ce1d63b6edcf9f5761509c13d8a4c7f0cff52094995db","cross_cats_sorted":["cs.CL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-08T17:07:11Z","title_canon_sha256":"f14ea9a45e82c723a8524a2cc99372dc64a613fd099c487250c10169eb7f1a8b"},"schema_version":"1.0","source":{"id":"2608.08239","kind":"arxiv","version":1}},"canonical_sha256":"c24f441db14978784df6da3a519263797fd8517392640b12dbb0f7d91069806a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c24f441db14978784df6da3a519263797fd8517392640b12dbb0f7d91069806a","first_computed_at":"2026-08-11T01:22:05.935304Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-11T01:22:05.935304Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2CVyWSBtOxMSaDO5pZmexvaJ/dDf9lVkPY6E8zTBHzvfXckkX5x+jv7SztbcsCcy8hs7gchyE1p3zeHrR6FACw==","signature_status":"signed_v1","signed_at":"2026-08-11T01:22:05.937729Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.08239","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3797b40a9b2cb7ff217e09937c1380a72a6be5784d9a87a5f1f29b7e7e52a7b5","sha256:50ea00fae502bb3a0ecf81ad2275dc89604b1b7a7b780a14ded43383b147614c"],"state_sha256":"61535f3ff915aaec01f7a8cef01ff82ffab0895c4ec6fc4b0c7d13bb343b147c"}