Smart Contracts are a much-cherished feature in blockchains that lets creators automate transactions across a wide range of applications starting from staking, escrow, decentralized exchanges (DEXs), swap protocols, and decentralized applications (dApps).
However, not all blockchains desire that. The cause may range from simplicity to security as smart contracts introduce a lot of security loopholes that might be exploited to steal crypto from a blockchain. Examples range from Bitcoin, Dogecoin, and Litecoin, to XRP Ledger.
Here are blockchains that do not have smart contracts.
1. Bitcoin
Bitcoin is the largest cryptocurrency with respect to market cap and seems to remain the largest for the next decade. It works on a proof of work (PoW) consensus mechanism and has the largest PoW networks with hashing power in the order of Exaflops.
The Bitcoin blockchain was initially designed to be a peer-to-peer money system but has grown to several new applications like NFTs (Ordinals), token creation (BRC and Ordinals), and even blockchain gaming.
Its creator, Satoshi Nakamoto still remains the most mysterious figure in the world of crypto.
2. XRP Ledger
XRP Ledger is the blockchain that supports the XRP cryptocurrency, RLUSD stablecoin, and various other applications like Cross Border Transactions, RWA, and Banking. It was launched in 2013 by Ripple Labs which still maintains a decent control over its technology.
XRP Ledger was created as a response to slow Bitcoin transactions.
3. Dogecoin
Dogecoin was the first memecoin blockchain with its own crypto and was based on the Bitcoin blockchain, due to which it also works on a proof of work blockchain.
4. Litecoin
Litecoin is also a proof-of-work cryptocurrency and was made in response to the Bitcoin blockchain. An improvement in Litecoin was its speed which was a lot faster than Bitcoin with one-fifth the block time (10 min in BTC vs 2 min in LTC).
