▶ Hackathon project
§ Project file

KISS-BDK

The permanent record for this hackathon project: write-up, links, team, tags, and prizes.
Best Use of Simplicity building consensus
KISS-BDK pairs a BDK testnet coordinator with KISS wallet, an air-gapped hardware signer, to build, verify, sign, and broadcast Bitcoin transactions entirely over QR.
View code ↗
The write-up

💋 KISS-BDK

Air-gapped Bitcoin transactions powered by BDK

Live demo

Pair → Sync → Build → Sign → Verify → Broadcast

  • BDK manages the testate wallet, addresses, coin selection, fees, PSBT creation, finalization, and broadcasting.
  • KISS, my hardware signer written in C, keeps private keys offline and verifies and signs each transaction.