{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:3W4ANZKF5DOVDCI342ZLOH744S","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":"b5f2c338f042fb3cec19334bbe30931c006d5b1039cf1362ee64f06cbe1393b9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-23T18:55:41Z","title_canon_sha256":"ba50d3503e233481ce9979a1706d2cef905a297c0b30b646f66f4ec5ef0744ac"},"schema_version":"1.0","source":{"id":"2606.25092","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.25092","created_at":"2026-06-25T00:18:17Z"},{"alias_kind":"arxiv_version","alias_value":"2606.25092v1","created_at":"2026-06-25T00:18:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.25092","created_at":"2026-06-25T00:18:17Z"},{"alias_kind":"pith_short_12","alias_value":"3W4ANZKF5DOV","created_at":"2026-06-25T00:18:17Z"},{"alias_kind":"pith_short_16","alias_value":"3W4ANZKF5DOVDCI3","created_at":"2026-06-25T00:18:17Z"},{"alias_kind":"pith_short_8","alias_value":"3W4ANZKF","created_at":"2026-06-25T00:18:17Z"}],"graph_snapshots":[{"event_id":"sha256:baef816d189c91f42e9c7e782ed9e156aeb723f659e3a58a35a043be646890e1","target":"graph","created_at":"2026-06-25T00:18:17Z","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/2606.25092/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Sparse Mixture-of-Experts (MoE) models route each token to a few of many experts, inviting the hypothesis that experts form functional modules tied to capabilities or languages. We test this causally on Command A+, a frontier open-weights MoE (218B total / 25B active; 128 experts, 8 active, +1 shared). We build a routing-mass atlas, pre-register six family-to-axis hypotheses before any intervention, and ablate each family at inference time against a size-matched random-expert null, measuring whether it selectively breaks its own axis (worst off-target effect at most one third of on-target). Cr","authors_text":"Ali Asaria, Deep Gandhi, Tony Salomone","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-23T18:55:41Z","title":"How Modular Is a Frontier Mixture-of-Experts? A Pre-registered Causal Test in Which Apparent Expert Modularity Mostly Dissolves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.25092","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":"sha256:4b0e63a683217b91c492759b39a844254cfae9d9e5d5b8a88044f42d51409f1f","target":"record","created_at":"2026-06-25T00:18:17Z","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":"b5f2c338f042fb3cec19334bbe30931c006d5b1039cf1362ee64f06cbe1393b9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-23T18:55:41Z","title_canon_sha256":"ba50d3503e233481ce9979a1706d2cef905a297c0b30b646f66f4ec5ef0744ac"},"schema_version":"1.0","source":{"id":"2606.25092","kind":"arxiv","version":1}},"canonical_sha256":"ddb806e545e8dd51891be6b2b71ffce4b239347b3fda7cf499cd665286314f4e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ddb806e545e8dd51891be6b2b71ffce4b239347b3fda7cf499cd665286314f4e","first_computed_at":"2026-06-25T00:18:17.583960Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-25T00:18:17.583960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"paMBqaLDN1tSTMkSvulQhiyAHZpeYRnMWqxaxP1+waR/jEJinpofz1zirS7rG/b+5qBRG1yhpupvsKZIthhIBQ==","signature_status":"signed_v1","signed_at":"2026-06-25T00:18:17.584336Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.25092","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b0e63a683217b91c492759b39a844254cfae9d9e5d5b8a88044f42d51409f1f","sha256:baef816d189c91f42e9c7e782ed9e156aeb723f659e3a58a35a043be646890e1"],"state_sha256":"acbb05f1d1fd85c367948febac9c2f88826757a682f27f6af16c2f0735425cb1"}