bb84

Total Value Locked$52.24

TVL by Chain

Ethereum$52.24

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.

Website X/Twitter

Category:Canonical Bridge

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and ETH escrowed in the bb84 rollup's OptimismPortal on Ethereum, which locks the L1 side of every deposit until it is withdrawn from the L2.

Competitors

Arbitrum Bridge ($3.262b)Polygon Bridge ($2.644b)Optimism Bridge ($673.3m)Robinhood Chain Bridge ($605.64m)World Chain Bridge ($380.66m)Starknet Bridge ($260.2m)xDAI Stake Bridge ($251.96m)Linea Bridge ($228.64m)Avalanche Core Bridge ($135.45m)NEAR Bridge ($128.16m)

bb84 history

TVL is the default DefiLlama definition. Daily values are UTC snapshots from Oct 21, 2026 to Oct 27, 2026.

All-time high TVL: $53 on Oct 21, 2026. All-time low TVL: $52 on Oct 23, 2026.

Daily TVL, Oct 21, 2026 to Oct 27, 2026

Date	TVL
Oct 21, 2026	$53
Oct 22, 2026	$53
Oct 23, 2026	$52
Oct 24, 2026	$52
Oct 25, 2026	$52
Oct 26, 2026	$52
Oct 27, 2026	$52

TVL at each month end, Oct 2026 to Oct 2026

Date	TVL
Oct 27, 2026 (latest)	$52

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 27, 2026, bb84 has $52.24 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 #68 by TVL. The category holds $9.614b across 96 protocols, and bb84 accounts for <0.1% of that total. Similar protocols include Arbitrum Bridge, Polygon Bridge, Optimism Bridge, Robinhood Chain Bridge, World Chain Bridge, Starknet Bridge, xDAI Stake Bridge, Linea Bridge, Avalanche Core Bridge, and NEAR Bridge.