Swimlanes.io is a free webapp for making sequence diagrams. You simply edit the text on the left and the diagram is updated in real time. You can download your sequence diagrams as images or distribute with a link.
title: Welcome to swimlanes.io Wallet --> Dapp: Txn requiring verification Dapp -> Verifier: Wallet Address + txn Wallet <-- Dapp: redirect Wallet --> Verifier: Initiate Wallet Connection Wallet <- Verifier: Sign In With Ethereum/CAIP-122 msg Wallet -> Verifier: Signature Wallet <-- Verifier: Request VCs directly Wallet -> Wallet: Check for VCs; selection/consent Wallet -> Verifier: Submit VC(s) If: VC(s) valid Verifier -> Dapp: Signed Verification + txn end if: VC(s) invalid Verifier -> Dapp: No op end