The Doughnut Principle — Study 2 Pre-Registration Lock Packet (Commercial-Evidence Confirmatory Study)

Locked pre-registration packet for Study 2: frozen protocol v1.4 (2026-07-25), LOCK-MANIFEST-STUDY-2.txt (one SHA-256 per artefact), all stimuli, harness code, batch configs, model weight digests, seed ledger, claim bindings, claim-rule fixture suite, and the full review/countersign trail. The manifest digest is anchored in the associated OSF registration, a DNS TXT record at _pre-reg-study2.thedoughnutprinciple.com, and the site footer. No confirmatory trial fires before the registration DOI exists.