On March 19, 2026, the OP_NET protocol was activated on the Bitcoin (BTC) mainnet. It enables smart contracts and DeFi tools directly on the base layer of the first cryptocurrency - without bridges, wrapped tokens, or transferring funds to other blockchains.

Key Differentiator of OP_NET:

The protocol does not use cross-chain bridges or wrapped assets (wBTC, renBTC). All operations occur through standard Bitcoin transactions on the Bitcoin mainnet, with fees paid exclusively in BTC.

The OPNET protocol embeds smart contract code and execution parameters directly into Bitcoin transactions, which are then confirmed by miners. Users simply need to connect a compatible OP_Wallet and transfer their BTC to it. No additional bridge actions or BTC wrapping are required.

This eliminates key risks associated with early versions of DeFi on Bitcoin: cross-chain bridge hacks, centralized service fund freezes, and reliance on third-party wrapped token issuers.

At Launch, OP_NET Offers the Following Services:

OP_Wallet — native wallet
OP-20 Token Standard - foundation for creating assets directly on the Bitcoin network
MotoSwap DEX (Beta) - decentralized asset exchange without intermediaries
Staking & Farming Tools (Beta) - enabling BTC holders to earn yield

Since OP_NET operates on Bitcoin’s L1 network, all transactions occur approximately every 10 minutes (aligned with block times). While L2 smart contract solutions on Bitcoin fall under the term BTCFi, OP_NET has introduced its own category: SlowFi. Despite this limitation, developers highlight several advantages over traditional DeFi - notably a structural mechanism that mitigates panic selling and farm-and-dump schemes common on fast blockchains like Ethereum and Solana.

That said, transaction wait times and high fees may hinder mainstream adoption. The protocol is likely to remain a niche product for Bitcoin maximalists and large-capital holders - even with the planned Q2 2026 launch of stablecoins on the Bitcoin network using the OP-20S smart contract standard.

Track smart contract developments on Bitcoin at OPNET.org