{"schemaVersion":"maha-epistemic/1.0","evidencePolicyVersion":"mps/0.1","recordId":"urn:maha:record:mechanistic-interpretability-toy-models-of-superposition","canonicalPath":"/knowledge/mechanistic-interpretability/methods/mechanistic-interpretability-toy-models-of-superposition","contentHash":"sha256:65e9b289d4e37ce598e80f3ea2a4abdb947ed9685cc0f77ee4013a6855fcbc75","generatedAt":"2026-08-25T09:35:33.232Z","publicationDecision":{"recordId":"urn:maha:record:mechanistic-interpretability-toy-models-of-superposition","publicEligible":true,"evaluatedAgainst":"maha-epistemic/1.0","reasons":[]},"claims":[{"id":"urn:maha:claim:mechanistic-interpretability-toy-models-of-superposition","scope":"Limited to Definitions, toy models, geometry, sparsity, and feature-interference experiments. in “Toy Models of Superposition”; this candidate records the concept boundary and does not pool results from uncited systems or studies.","boundary":"Toy models of superposition does not by itself establish system-level performance, safety, manufacturability, scalability, economic advantage, clinical benefit, or deployment readiness.","claimKind":"theoretical-model","sourceIds":["source-mechanistic-interpretability-superposition"],"statement":"The cited source supports treating toy models of superposition as a distinct method within the stated mechanistic interpretability scope.","replication":{"asOfDate":"2026-08-24","assessment":"Independent replication and cross-platform transfer have not been compiled for this candidate; the evidence maturity refers only to the bounded source contract.","independentReplicationCount":null},"uncertainty":{"kind":"qualitative","statement":"No cross-source quantitative interval is asserted. Definitions, operating conditions, samples, instruments, and outcome measures must be checked against the exact cited locator during review."},"evidenceMaturity":"single-study"}],"sources":[{"id":"source-mechanistic-interpretability-superposition","url":"https://transformer-circuits.pub/2022/toy_model/index.html","title":"Toy Models of Superposition","rights":{"note":"The candidate uses original boundary language and a short paraphrase linked to the cited source. No source passage, figure, or table is reproduced.","basis":"citation-with-paraphrase","quotationUsed":false},"authors":["Nelson Elhage","Tristan Hume","Catherine Olsson","et al."],"boundary":"A toy-model mechanism does not establish that every feature in a production model has the same geometry or semantics.","publisher":"Transformer Circuits Thread","establishes":"The work develops toy models in which neural networks represent more features than available dimensions under specified sparsity conditions.","identifiers":[{"value":"https://transformer-circuits.pub/2022/toy_model/index.html","scheme":"url"}],"publishedAt":"2022-09-14","exactLocator":"Definitions, toy models, geometry, sparsity, and feature-interference experiments."}],"reviewEvents":[{"scope":"source-fidelity","verdict":"approve","reviewId":"epireview_7b712ffaa8354e859dfeba62a629b22d","rationale":"This internal editorial decision is limited to source-fidelity, exact target sha256:a984a5310affae3ce9141323a019b36a57e03d4e87430b5d82591c391afc908e, and source report sha256:327b70e0c9462bf8b124fd513d9ce0b5248b69be59b972456d0255e04cb8dedf. It records protocol compliance, not scientific truth, independent validation, or expert consensus.","reviewedAt":"2026-08-25T09:34:36.727Z","reviewerId":"expert_maha-internal-editorial-v1","reviewMethod":"Deterministic exact-hash checks, public source-resolution evidence, source-to-claim audit, unsupported-inference audit, and AI-assisted internal editorial inspection. No external reviewer participated.","reviewerKind":"internal-editorial","reviewerRole":"AI-assisted internal source, scope, boundary, and rights audit; this is an organizational editorial method, not an external subject-matter credential or endorsement.","targetSha256":"sha256:a984a5310affae3ce9141323a019b36a57e03d4e87430b5d82591c391afc908e","supersedesReviewId":null,"reviewerProfileVersion":1},{"scope":"domain-fidelity","verdict":"approve","reviewId":"epireview_0e41fbc6c038428ebb9668e67a71e59b","rationale":"This internal editorial decision is limited to domain-fidelity, exact target sha256:a984a5310affae3ce9141323a019b36a57e03d4e87430b5d82591c391afc908e, and source report sha256:327b70e0c9462bf8b124fd513d9ce0b5248b69be59b972456d0255e04cb8dedf. It records protocol compliance, not scientific truth, independent validation, or expert consensus.","reviewedAt":"2026-08-25T09:34:36.974Z","reviewerId":"expert_maha-internal-editorial-v1","reviewMethod":"Deterministic exact-hash checks, public source-resolution evidence, source-to-claim audit, unsupported-inference audit, and AI-assisted internal editorial inspection. No external reviewer participated.","reviewerKind":"internal-editorial","reviewerRole":"AI-assisted internal source, scope, boundary, and rights audit; this is an organizational editorial method, not an external subject-matter credential or endorsement.","targetSha256":"sha256:a984a5310affae3ce9141323a019b36a57e03d4e87430b5d82591c391afc908e","supersedesReviewId":null,"reviewerProfileVersion":1},{"scope":"boundary-adequacy","verdict":"approve","reviewId":"epireview_55471f3eaae345e88c1b1b564cdfc484","rationale":"This internal editorial decision is limited to boundary-adequacy, exact target sha256:a984a5310affae3ce9141323a019b36a57e03d4e87430b5d82591c391afc908e, and source report sha256:327b70e0c9462bf8b124fd513d9ce0b5248b69be59b972456d0255e04cb8dedf. It records protocol compliance, not scientific truth, independent validation, or expert consensus.","reviewedAt":"2026-08-25T09:34:37.055Z","reviewerId":"expert_maha-internal-editorial-v1","reviewMethod":"Deterministic exact-hash checks, public source-resolution evidence, source-to-claim audit, unsupported-inference audit, and AI-assisted internal editorial inspection. No external reviewer participated.","reviewerKind":"internal-editorial","reviewerRole":"AI-assisted internal source, scope, boundary, and rights audit; this is an organizational editorial method, not an external subject-matter credential or endorsement.","targetSha256":"sha256:a984a5310affae3ce9141323a019b36a57e03d4e87430b5d82591c391afc908e","supersedesReviewId":null,"reviewerProfileVersion":1},{"scope":"rights-and-locator","verdict":"approve","reviewId":"epireview_d7614168e5e345d6b27ac17e705126a5","rationale":"This internal editorial decision is limited to rights-and-locator, exact target sha256:a984a5310affae3ce9141323a019b36a57e03d4e87430b5d82591c391afc908e, and source report sha256:327b70e0c9462bf8b124fd513d9ce0b5248b69be59b972456d0255e04cb8dedf. It records protocol compliance, not scientific truth, independent validation, or expert consensus.","reviewedAt":"2026-08-25T09:34:37.149Z","reviewerId":"expert_maha-internal-editorial-v1","reviewMethod":"Deterministic exact-hash checks, public source-resolution evidence, source-to-claim audit, unsupported-inference audit, and AI-assisted internal editorial inspection. No external reviewer participated.","reviewerKind":"internal-editorial","reviewerRole":"AI-assisted internal source, scope, boundary, and rights audit; this is an organizational editorial method, not an external subject-matter credential or endorsement.","targetSha256":"sha256:a984a5310affae3ce9141323a019b36a57e03d4e87430b5d82591c391afc908e","supersedesReviewId":null,"reviewerProfileVersion":1}]}