Protocol Information
bb84 is a payments rollup on Ethereum (OP Stack) for USDC and EURC. Accounts on the L2 are keccak hash chains instead of ECDSA keys, with one-time stealth addresses and gas-free payments to merchants.
Methodology
TVL: TVL is the USDC, EURC and ETH escrowed in the bb84 rollup's OptimismPortal on Ethereum, which locks the L1 side of every deposit until it is withdrawn from the L2.View code on GitHubCompetitors
bb84 history
TVL is the default DefiLlama definition. Daily values are UTC snapshots from Oct 21, 2026 to Oct 21, 2026.
All-time high TVL: $53 on Oct 21, 2026. All-time low TVL: $53 on Oct 21, 2026.
Daily TVL, Oct 21, 2026 to Oct 21, 2026
| Date | TVL |
|---|---|
| Oct 21, 2026 | $53 |
TVL at each month end, Oct 2026 to Oct 2026
| Date | TVL |
|---|---|
| Oct 21, 2026 (latest) | $53 |
The .csv export on the chart above downloads every daily value. The same data is in the public API: https://api.llama.fi/protocol/bb84
Frequently asked questions
What is bb84's TVL?
As of Oct 21, 2026, bb84 has $53.07 in total value locked.
What chains does bb84 operate on?
bb84 operates on Ethereum. Ethereum holds the largest share at 100%.
How does bb84's TVL compare to similar protocols?
Among Canonical Bridge protocols tracked by DefiLlama, bb84 ranks #67 by TVL. The category holds $7.798b across 95 protocols, and bb84 accounts for <0.1% of that total. Similar protocols include Arbitrum Bridge, Optimism Bridge, Robinhood Chain Bridge, World Chain, Starknet Bridge, xDAI Stake Bridge, Linea Bridge, NEAR Bridge, Avalanche Core Bridge, and Mantle Bridge.