All of this means that <em>people will be able to discover your old Twitter username by looking at your sigchain.</em> </p> <p> <strong>Where can I find out more?</strong> </p> <p>For a technical explanation of how Keybase supports “revocations” instead of “deletions”, how they are chained together, and how they are hashed into the Merkle tree and Bitcoin blockchain, please read our paper documentation about our server security and how we use the Bitcoin blockchain to improve security.</p>