Bitcoin holders have long watched from the sidelines as Ethereum and its Layer 2 ecosystem hoovered up DeFi activity. VerifiedX is betting that the missing ingredient was a trustworthy bridge, not a lack of interest.

The project launched vBTC.b on Base on May 20, positioning it as the first non-synthetic Bitcoin representation on Coinbase’s EVM chain that offers native redemption back to actual Bitcoin through the VerifiedX network peg. Paired with a Fireblocks integration for institutional self-custody and listing, this is a play aimed squarely at the deep-pocketed crowd that needs more than a promise before moving capital on-chain.

What vBTC.b actually does

Think of vBTC.b as a receipt for real Bitcoin, except the receipt lives on Base and can be used across DeFi protocols. The “native redemption” part is key: holders can swap vBTC.b back to Bitcoin through the VerifiedX network peg without relying on a centralized intermediary to honor the exchange.

On the security front, the architecture uses FROST-based threshold signatures, a cryptographic approach where multiple parties must cooperate to sign transactions. No single key holder can unilaterally move funds. Zero-knowledge proofs add a privacy layer, and the entire stack is compatible with Bitcoin’s Taproot upgrade. Halborn, the blockchain security firm, conducted the audit.

The Fireblocks angle

Fireblocks is the institutional custody provider that processes trillions in digital asset transfers annually. Its integration with vBTC.b means institutions can hold the token within Fireblocks’ infrastructure, complete with the governance, compliance, and policy engines that regulated entities require.

The practical use cases that VerifiedX is highlighting include collateralized borrowing and programmable settlements. A fund could, for example, deposit vBTC.b as collateral on a lending protocol deployed on Base, borrow stablecoins against it, and later redeem the underlying Bitcoin when the position is unwound. All without leaving the Fireblocks custody environment.

Context: VerifiedX’s broader playbook

VerifiedX was founded in 2023 with a stated mission of making Bitcoin private and programmable. The vBTC.b launch follows the rollout of its Prism privacy layer on April 16, which introduced shielded transactions for both vBTC and VFX assets.

The project also carries a prior custody partnership with Crypto.com that covered $1.5 billion in assets. Its governance token, VFX, trades at approximately $69. Validator activation on the network requires staking 5,000 VFX, setting a meaningful commitment threshold for participants who want to help secure the system.