{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What were the early consensus mechanisms?","a":"Early consensus mechanisms mainly consisted of two types: Proof of Work (PoW) and Proof of Stake (PoS). The Workload Proof mechanism is the consensus mechanism adopted by Bitcoin, which cores lies in proving that enough computational work has been done by solving complex mathematical problems to receive block rewards. The Stake Proof mechanism, on the other hand, is the consensus mechanism adopted by Ethereum,  which selects nodes for block construction and verification based on the amount and time of holding tokens. These two consensus mechanisms played crucial roles in early blockchain projects, contributing to the development and application of blockchain technology."}]}],"pr":"c20e22c62639c5e4146f2f8bb1c7f2ad28460a0c27cd87e4b930aa03592a3982"}