COLDCARD RNG incident the public record, collected and explained
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Janrothen 2084764544455315640

janrothen-2084764544455315640

https://x.com/janrothen/status/2084764544455315640

Captured screenshot of the post by @janrothen, posted 4 Aug 2026, 22:12 UTC
@janrothen posted captured full-size capture → original post →
Author
@janrothen
Organisation
independent
Evidence role
downstream-wallet-scope
Posted
Capture status
capture held

Jan Rothen announcing a move to BitBox and listing five entropy sources he says it combines: true RNG on the secure chip, true RNG on the microcontroller, a factory-burned unique value, host entropy and a hash of the device password. Registered for the competitor design claim, which is the substantive part, and because entropy-source layering is the design question the incident raised. The post ends in a purchase link and reads as promotional; the five-source description is the poster's and is not verified against BitBox firmware here.

This post is registered as evidence and has a locally held capture. The original remains the canonical publication.

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Compare the screenshot or a quotation against the original while it is available.