The latest articles on DEV Community by ZKStamp Proof-100 (@zkstamp_proof100_56754f5). https://dev.to/zkstamp_proof100_56754f5 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4239598%2F1008bdc0-0ee5-4368-b051-d70e1eb5b3af.png https://dev.to/zkstamp_proof100_56754f5 en ZKStamp Proof-100 Wed, 11 Nov 2026 17:39:31 +0000 https://dev.to/zkstamp_proof100_56754f5/zkstamp-proof-100-jn7 https://dev.to/zkstamp_proof100_56754f5/zkstamp-proof-100-jn7 <p><a href="https://github.com/ZKStamp/Proof100" rel="noopener noreferrer">ZKStamp Proof-100</a> gives AI agents and developers private, dated proofs that a file or text existed. Only the SHA-256 fingerprint is sent; the file never leaves the user's machine. The fingerprint is written into the encrypted memo of a shielded (zk-SNARK) transaction on the BitcoinZ blockchain, and the block dates it. Unlike public blockchain timestamps, nobody can see the fingerprint or who made it. Each proof goes to a new address and comes with its own viewing key, so the owner reveals one proof at a time, only when needed. Anyone can verify a proof with ZCheck, an open-source script, on their own BitcoinZ node. AI agents connect through MCP and can stamp in one sentence. New accounts get 3 free proofs. Code is open source (MIT).</p> mcpservers blockchain privacy api