Bitcoin vs OP Mainnet

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.

OP Mainnet (Optimism) is an optimistic rollup that batches transactions to Ethereum and relies on fraud proofs submitted during a seven‑day challenge window. The Bedrock upgrade in 2023 cut L1 calldata costs by 40 % and introduced multi‑proof modularity. ‘RetroPGF’ rounds redistribute protocol revenue to public‑goods builders, governed by the OP token‑holder Collective.