Decentralized finance (DeFi) on the Bitcoin blockchain may still be in its infancy relative to Ethereum, but Bitcoin DeFi (BTCFi) is becoming safer and cheaper, crypto analytics firm Messari said in a new report.A central participant is Rootstock, one of the oldest Bitcoin layer-2 projects, crypto analytics firm Messari said in its "State of Rootstock" report, published on Thursday. Rootstock is now secured by 81% of Bitcoin's total hashrate, meaning miners that account for amount the hashrate are also approving transactions on the layer 2. The figure was just 56% before the the onboarding of Foundry and Spiderpool, the world's largest and sixth-largest mining pools, respectively, in February
source: https://www.coindesk.com/tech/2025/05/10/bitcoin-defi-security-improves-as-rootstock-boosts-hashrate-share