01
Taproot script path
The internal key is the BIP-341 NUMS point, so the key path cannot be spent. Both leaves use version 0xc0. Spends go through the script path.
TAG chrono · OP bind-beacon
On-chain time,set on beacon slots.
Chrono is a Bitcoin Taproot inscription protocol. A mint seals the beacon payload into the script path. The tick is CHRONO. Path A is the inscription envelope. If it is not spent in time, path B returns to the consensus key after a 48-block CSV.
Protocol parameters · not live chain stats
- Tick
- CHRONO
- Protocol parameter
- Network
- Bitcoin mainnet
- Protocol parameter
- Units
- 1000 / mint
- Protocol parameter
- Next slot
- 43+
- 42 is already used
- Amount
- 5000 sats
- Protocol parameter
- CSV fallback
- 48 blocks
- Protocol parameter
Slot 42 is already used. New mints start at 43. Tick, units, and the CSV length are protocol parameters, not a block-explorer reading.
Protocol
SCRIPT PATH02
Inscription envelope
Path A uses OP_FALSE OP_IF to commit the tag chrono and the bind-beacon payload, then checks the minter's x-only pubkey.
03
48-block CSV fallback
Path B is 48 OP_CHECKSEQUENCEVERIFY. The spend is a version-2 transaction with nSequence 0x30, so it can move only after about 48 blocks.
Docs
Payload fields
p is chrono-utxo and op is bind-beacon. The other fields are slot, tick, units, tier, and weight. The envelope commits that JSON into the leaf script.
Payment boundary
A mint pays 5000 sats to the bc1p address for the next slot. UniSat, OKX Wallet, and the other Bitcoin wallets call their send method when it exists. MetaMask stays in the list and cannot pay a bc1p address.
Run locally
npm install
npm run dev
The dev server listens on 0.0.0.0:47231.