Proof - of - Stake Research Seminar in Cryptography Janno
نویسندگان
چکیده
The key component in Bitcoin protocol (and many of the follow-up protocols) is the proof-of-work (PoW) puzzle solving. A miner can issue a new block only if it has solved a computationally difficult PoW challenge. In case of Bitcoin, miners need to find a hash of the previous block (by appending small nonce to it) that has a certain number of zeros in the beginning. The miner that finds it first can issue the next block and her work is rewarded in cryptocurrency.
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