The Construct on Bitcoin (BOB) challenge introduced the launch of its first section on Wednesday, enabling decentralized apps—dapps—to work together with the world’s prime blockchain.
The BOB mainnet is coming on-line with $300 million in whole worth locked (TVL) and over 40 dapps already out there, the staff mentioned on Twitter, declaring “a Bitcoin-driven DeFi summer season” with extra to return within the subsequent three weeks.
Construct on Bitcoin is meant to be a hybrid layer-2 community that merges Bitcoin’s international adoption, liquidity, and proof-of-work safety with the decentralized finance (DeFi) options of Ethereum: good contracts, wallets, and entry to stablecoins.
In March, Bitcoin DeFi developer Sovryn used Construct on Bitcoin to develop its choices to the Ethereum ecosystem. BOB is in the meantime collaborating with Threshold’s tBTC and Wrapped BTC (WBTC).
“We at the moment work with the 2 main BTC bridge suppliers whereas engaged on our bridge infrastructure in parallel,” BOB co-founder Alexei Zamyatin instructed Decrypt. “We constructed a one-click onramp from Bitcoin to BOB that abstracts bridge complexity and makes transferring liquidity from BTC to BOB as straightforward as transferring from ETH to an ETH L2 going reside subsequent week.”
Zamyatin mentioned Construct on Bitcoin can also be seeking to present a one-stop store for Bitcoin Ordinals and Runes, working with groups that present bridges for Ordinals, Runes, and BRC-20 tokens.

Picture: Construct on Bitcoin
Whereas Bitcoin DeFi is the aim, the BOB staff acknowledged that the primary blockchain will not be prepared, making “bootstrapping” on Ethereum needed.
Why Bootstrapping?
Regardless of the excessive demand, Bitcoin rollups aren’t prepared but. Our strategy leverages Ethereum’s established infrastructure to:
• Improve UX for #Ordinals, #Runes, & #BRC20s.
• Make BTC deployment into DeFi tremendous straightforward, for each Bitcoin & Ethereum customers.— BOB (Mainnet Stay) (@build_on_bob) Could 1, 2024
“Connecting to Ethereum follows a realistic rollout strategy,” the staff mentioned. “Bitcoin rollups don’t but work, however demand is excessive: Bitcoin customers want entry to stablecoins and DeFi, Ethereum customers need to use their BTC and get entry to Ordinals, Runes and BRC20s.”
“It’s time to finish the cult-like feuds and unite the 2 largest Web3 ecosystems to spearhead mass adoption collectively,” BOB declared.
In line with Zamyatin, the subsequent section of BOB’s improvement will obtain Bitcoin proof of labor by way of “merged mining,” enhancing safety with out disrupting Bitcoin mining. Merged mining refers back to the means of mining two or extra blockchains on the similar time.
“Earlier merged mining situations suffered from gradual block occasions (30sec-1min) because of the limitations of Proof-of-Work,” he mentioned.
Lastly, the third deliberate section will introduce BitVM, enabling a safe BTC bridge with fraud proofs much like Ethereum’s bridges, BOB explains, making certain protected BTC deposits enforced by Bitcoin nodes.
“This ensures that customers bridging in BTC could be sure that their deposits are protected and safety is enforced by all Bitcoin full nodes—so long as there’s not less than one individual on-line to submit a fraud-proof,” he mentioned, noting Arbitrum on Ethereum.
To attract extra customers to its platform, Zamyatin pointed to a BOB fusion program that the corporate is utilizing to spice up adoption via dapps that improve the TVL and variety of customers.
In line with the Construct on Bob web site, the overall worth locked on the platform is at the moment over $279 million.
“BOB Fusion Season 1 attracted 300 million in TVL from 33,000 customers in 4 weeks,” Zamyatin mentioned. “BOB Season 2 that launched at this time noticed $64 million in on-chain TVL influx in lower than 12 hours.”
“Our mission is to make BTC deployment into DeFi tremendous straightforward,” Zamyatin mentioned. “Suppose Yearn Finance for Bitcoin, and make Bitcoin property accessible to Ethereum and EVM customers—uniting the 2 largest web3 power-user ecosystems.”
Edited by Ryan Ozawa.