Stacks vs Tezos

Stacks is a Bitcoin Layer‑2 secured by Proof‑of‑Transfer where miners commit BTC to mint STX and anchor blocks to Bitcoin every 10–15 minutes. Clarity smart contracts enable DeFi with Bitcoin finality, and the sBTC proposal aims to bring a two‑way peg for native BTC on chain. The Nakamoto upgrade scheduled for 2025 will reduce block times to five seconds and add probabilistic Bitcoin finality.

Tezos is a self‑amending Proof‑of‑Stake Layer‑1 that supports on‑chain governance, letting token holders adopt protocol upgrades without hard forks. Its latest ‘Mumbai’ upgrade activated Smart Rollups, allowing scalable L2s written in Rust and Wasm to inherit Tezos security. Tezos processes ~1 million contract calls daily and is popular for compliant tokenisation of securities in Europe.