Private DeFi on
Bitcoin and Ethereum.
One tacit1 ID for both chains. Shield, swap, send, earn and borrow, with amounts and owners hidden.
With a wallet you have, or a passkey. It sends nothing and costs nothing.Next, one transaction moves your ETH into the Tacit pool as tETH.
Your Tacit
Features
- Private by defaultAmounts and owners stay hidden.
- No custodianProofs, not a multisig, bridge the chains.
- One keyEverything recovers from it alone.
- One contractThe Ethereum pool is immutable.
One ID.
Two chains.
One key holds your private balances on both chains. Zero-knowledge proofs move them between the two, with no federation or multisig. Everything recovers from that key alone, and the Ethereum pool is one immutable contract.
Bitcoin and Ethereum, in stepMore on the stats page
Farm TAC.
TAC streams to both farms every second. Claim it, or leave, whenever you like.
Public farm, from ETH alone
One transaction from your wallet: about half your ETH becomes TAC inside the pool, then both earn. TAC/ETH farm
Farm with ETHPrivate farms, hidden
tETH alone or both sides, in private pools. Nobody sees what you hold. Private pools
Farm privatelyTAC is private money, born on Bitcoin.
Issued once on Bitcoin and fair-launched by airdrop. Its amounts are hidden on Bitcoin, its own shielded pool there hides who holds it, and the Tacit pool keeps it private on Ethereum too.
- Fixed supply
- 21,000,000
- Airdrop, eligible wallets
- 14,000+
- Sale or VC
- None
Private bitcoin payments, today.
Buy TAC with sats, shield it in TAC’s pool on Bitcoin, then sell it for sats paid to any address: yours, or whoever you are paying. Every trade is an atomic swap on TAC’s live order book, and the pool breaks the link between sats in and sats out. In between, you hold TAC.
- Cheaper exitsPrivate exits cost 0.30%, down to 0.15% for holders.
- More pointsUp to 2× on every points activity, held in an Ethereum wallet.
- A voteOn how the protocol’s governed parts are run.
- Never soldRelay fees paid in TAC go to the reserve, and part of the relay’s ETH surplus buys more.
TAC is the standing example of the Tacit spec: a confidential token issued on Bitcoin with no mint key. Anyone can issue one the same way.
Press
Bankless · William M. Peaster · 1 Jun 2026
Tacit: A New Take on Confidential Bitcoin DeFi
Confidential tokens, an anonymous mixer, a private AMM, and trustless wrapped BTC, all on the Bitcoin L1.
Read on Bankless ↗