Threshold Network

[[PROJECT:1870]] is a decentralized protocol formed in January 2022 from the merger of Keep Network and NuCypher. The two projects combined their threshold cryptography and proxy re-encryption capabilities into a single network, with the primary focus now on enabling trust-minimized Bitcoin finance across DeFi protocols and institutional capital markets.

tBTC: How the Bitcoin Bridge Works

The network's core product is tBTC, a 1:1 tokenized Bitcoin that allows BTC holders to use their holdings across Ethereum and a growing set of other chains without relying on a centralized custodian. Rather than placing Bitcoin under a single custodian's control, tBTC distributes custody across a rotating group of independent node operators using threshold cryptography. Control of deposited BTC requires agreement from a threshold of participants, so no single operator can unilaterally move or access the funds.

This distributed model eliminates the centralized chokepoints that have made other Bitcoin bridges vulnerable to hacks or custody failures. The network has been running this security model in production since 2020, through Keep Network's earlier deployment, and claims over six years of validation.

tBTC has been deployed across eight networks: Ethereum, Arbitrum, Base, Polygon, Sui, Starknet, BOB, and Optimism. As of August 2026, 30,000 tBTC have been minted, according to the official Threshold account. The bridge has processed more than 26,355 BTC in cumulative transactions through year-end 2025 and has accumulated over $5.2 billion in total bridge volume, per the protocol's official site. Approximately 4,362 BTC remains active in the system, supporting $2.7 billion in collateralized loans.

In November 2025, Threshold launched gasless minting, removing gas costs from the deposit side of the bridging process. The same update introduced T-stake-based fee waivers, allowing users who stake T to offset the 20-basis-point redemption fee in full, a structure that competes directly with WBTC's fee model.

Verifiable Bitcoin Accounts for Institutional Use

Alongside tBTC, Threshold has developed Verifiable Bitcoin Accounts (VBA), targeting institutional participants who want to deploy Bitcoin as productive collateral without changing their custody arrangements.

VBA uses multi-party signing technology (PSBT) to structure custody so that no single party can move Bitcoin collateral alone, and every position can be verified on-chain at any time. Institutions keep holdings in segregated accounts, separate from commingled pools, while still accessing lending venues including Aave and Morpho. Threshold's blog posts on the product describe yields of 2% to 12% based on deployment strategy, with borrowing rates near 3.3% as of mid-2026, derived from actual Bitcoin lending activity rather than token incentives.

In June 2026, Abra, a Bitcoin-backed lending platform, announced it had migrated from WBTC to tBTC for its primary Bitcoin collateral. The stated reasons were tBTC's permissionless design, lower cost structure, faster redemptions, and stronger custody guarantees.

The institutional series Threshold has been publishing since mid-2026 frames VBA and tBTC as complementary: tBTC provides the on-chain representation of Bitcoin, while VBA handles the custody layer that institutional counterparties require before treating that representation as legitimate collateral.

Threshold Cryptography: The Technical Foundation

Threshold cryptography, as Threshold Network implements it, uses distributed key generation and threshold signature schemes. Private key material is split across multiple participants, and executing a transaction requires a threshold subset to coordinate. No individual participant ever has access to the complete key, which means a compromised node does not compromise the system.

This approach follows Shamir's Secret Sharing principles and aligns with cryptographic standards that NIST has since standardized for multi-party computation. Threshold frames this as distinguishing tBTC from wrapped Bitcoin alternatives that rely on multi-signature setups controlled by a smaller, fixed group or a single operator.

Rotating node operators, including Boar, P2P Validator, and Stake Capital, participate in the validator set that secures the bridge.

T Token and DAO Governance

The T token (ERC-20) is the governance and value-accrual asset for the protocol. It emerged from the 2022 merger as the unified replacement for both the former KEEP and NU tokens, creating a single governance layer for the combined network. Total supply is approximately 11.155 billion T, including around 1.155 billion minted during the bootstrapping period for staker and node incentives.

Staked T earns fee waivers on tBTC mint and redemption operations, and node operators are required to stake T to participate in securing the bridge. T is listed on Coinbase, Binance, and Kraken among centralized exchanges, and on Uniswap, Curve, and Balancer on the decentralized side.

The DAO governs the protocol through on-chain proposals. In February 2025, token holders voted to have Threshold Labs, led by MacLane Wilkison and Callan Sarre, manage protocol operations and day-to-day development.

Market Context

Threshold positions tBTC as a decentralized alternative to WBTC, the historically dominant wrapped Bitcoin. Following 2024 controversy around WBTC's custody arrangement with BitGo, some protocols and users moved toward tBTC's model. The broader BTCFi market contracted through a period Threshold describes as a "2026 BTCFi Reset," during which DeFi Bitcoin holdings consolidated across a smaller number of protocols at roughly 91,000 BTC. Threshold characterizes this period as having shifted attention toward custody models with independent verifiability.

TVL peaked at approximately 6,500 BTC, or roughly $806 million, in October 2025. The launch of US spot Bitcoin ETFs in early 2024 is cited by the team as an institutional tailwind, since ETF holders can participate in DeFi through tBTC's custody integration model without moving Bitcoin off regulated infrastructure.