What Are Open and Permissionless Blockchains? | HackerNoon
Briefly

The article discusses the evolution of blockchain technology, starting from Bitcoin's inception, which introduced a decentralized structure comprising linked data blocks, peer-to-peer connectivity, and a consensus mechanism. It highlights the transition to open and permissionless blockchains (OPBs), emphasizing the advanced capabilities brought by platforms like Ethereum. These technologies allow for a broad range of applications through smart contracts, bypassing traditional reliance on centralized authorities and enabling innovative uses in various sectors such as e-commerce and attestation services.
The emergence of Bitcoin introduced the term 'blockchain,' symbolizing a decentralized architecture composed of linked data blocks, peer-to-peer networks, and consensus protocols.
Open and permissionless blockchains (OPB) have evolved significantly, with Bitcoin and Ethereum as pioneers, enabling diverse applications through decentralized mechanisms.
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