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Selfish Mining

Selfish mining is a dishonest cryptocurrency mining practice in which a single miner or a group solves a hash, creates a new block and conceals it from the public blockchain. The other miners continue to waste computing resources on an old block, allowing the selfish miner to get a head start on the newer block.

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Trustless

This is a system of distributing trust among different actors in a system via an economic game that incentivizes participants in the system to cooperate with the rules defined by the protocol. The Bitcoin blockchain is an example.

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Transaction Pool

This is also known as a mempool, is a data structure that stores the set of unmined transactions that have been validated by miners.

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