Bitcoin vs Starknet

Bitcoin is the first decentralized blockchain, secured by proof‑of‑work where miners expend SHA‑256 hash power to find valid blocks every ~10 minutes. The supply is capped at 21 million coins, with inflation halving roughly every four years—the most recent halving occurred on 20 April 2024. Upgrades like SegWit and Taproot have enabled second‑layer protocols such as the Lightning Network and emerging covenants via OP_CTV debates.

Starknet is a STARK‑based validity rollup where smart contracts are written in Cairo and executed off‑chain, with succinct proofs verified on Ethereum. The 2024 Madara sequencer supports parallel execution, and the ‘Quantum Leap’ upgrade reduced L1 calldata by 30 %. STRK token launched in February 2025, enabling slot auctions for sequencer decentralization roadmap.