proof of work
Effort-based authentication method
Proof of work is a system requiring computational effort to validate transactions or gain access—making spam, fraud, or attacks costly.
The term dominates cryptocurrency discussions, where miners solve complex mathematical problems to verify blockchain transactions and earn new coins: Bitcoin uses proof of work to secure its network.
The concept predates crypto, appearing in email anti-spam proposals where senders had to perform calculations before messages would be accepted.
- noncePresent purpose or occasion
- hashrateCryptographic calculations per second
- difficultyState of being hard
- blockchainCryptographic linked transaction record
- miningExtracting earth's resources
mining rig · energy consumption · validation · computation · computational power · game theory · brute force · network security · carbon footprint · smart contract · cryptocurrency · miner · algorithm · data integrity · transaction fee · virtual currency · halving · SHA-256
- cryptoBitcoin, Ethereum, blockchain, cryptocurrency, tokens
- BitcoinBitcoin, BTC, Satoshi, blockchain, mining rig
- blockchainblockchain, blocks, chains, hashes, hash
- crypto miningmining rig, hashrate, nonce, SHA-256, difficulty
- hashinghash, hash code, digest, fingerprint, collision
- CryptocurrencyBitcoin, Ethereum, altcoin, crypto, cryptocurrency