Bitcoin to Solana: How 8 Crypto Networks Reach Consensus

Bitcoin introduced the model now called Nakamoto Consensus, but Ethereum, $BNB Smart Chain, $XRP Ledger, Solana, and Tron took different routes, while Dogecoin and Zcash still run much closer to Bitcoin’s original playbook. Excluding stablecoins, all of these cryptocurrencies mentioned below are the top digital assets by market valuation.

What a Consensus Algorithm Actually Does

A blockchain is essentially a shared accounting book replicated across computers worldwide. When two machines see different transactions or competing blocks at once, the network needs a hard rule for deciding which history survives. That is a consensus algorithm’s job. It determines who gets the next update, how competing histories are ranked, what prevents someone from flooding the network with fake participants, and when a transaction becomes difficult or impossible to unwind. Those details matter because labeling a chain merely “proof-of-work” or “proof-of-stake” hides the machinery deciding who wins when the network disagrees.

Nakamoto Consensus Made Bitcoin’s Open Network Possible

Nakamoto Consensus is not a single button Bitcoin pushes or one named algorithm in Satoshi Nakamoto’s white paper. It is a stack of rules. Miners compete and earn with proof-of-work (PoW), working nodes independently reject invalid blocks, miners get paid for valid work, and competing chains are resolved by following the valid branch carrying the greatest accumulated computational work.