The chain purpose-built for credit at scale.
Where risk clears first, credit can go further. Execution on Arch, settlement on Bitcoin.
One network. Two ways in.
Credit needs its own chain.
On a rented chain every lender guards only itself, so everyone lends conservatively. Arch puts the whole trade inside one risk perimeter.
One risk perimeter
Lending, vaults, swaps and the dollar in one stack.
Liquidations go first
Risk clears ahead of every mint and meme.
Collateral you can reach
Bitcoin stays on Bitcoin, and can still be closed out.
Recovery is certain
No single party can move a coin or stop a closeout.
Execution on Arch. Settlement on the origin chain.
Not a sidechain, an L2 or a meta-protocol: an independent network whose output is on the native chain.
- Your walletTaproot address
Sign with the Bitcoin wallet you already use.
- ArchVMeBPF · Rust · Anchor
Programs run deterministically, Solana-compatible.
- TransactionNative Bitcoin tx
Every state change becomes a Bitcoin transaction.
- ValidatorsFROST + ROAST
A threshold signs together. No one signs alone.
- BitcoinBase layer
Settles as real UTXOs. No IOUs.
Anatomy of a liquidation.
<3sfrom breach to closeout
Detect
Every account re-priced every block.
Prioritize
Closeouts go first in the next block.
Sign
A validator threshold locks the price.
Settle
Sold, aUSD minted, loan repaid.
Built for clearing.
A lending book is only as good as its worst hour. Every feature exists to make that hour boring.
- Priority lanesLiquidations clear ahead of everything else.
- Risk-aware executionA closeout is never ordered like a swap.
- Segregated accountsEvery account at its own address.
- No comminglingCollateral is never pooled.
- One margin accountEvery balance margined in one book.
- Native collateralBitcoin posts from any wallet.
- No single keyA validator threshold signs closeouts.
- A dollar of its ownThe network issues aUSD.
- Deterministic blocksEvery account re-checked every block.
DeFi split credit into silos. Arch puts it back in one book.
Separate protocols each price their own worst case. On Arch, lending, vaults, swaps and the dollar share one balance sheet.