
UTXO is an acronym for: unspent transaction output.

A user that participates in the transaction verification process on a proof-of-stake blockchain.

A validator is a crypto user that participates in the validation processes necessary for transactions on proof-of-stake (PoS) blockchain networks. This role is the equivalent of a miner in proof-of-work (PoW) networks, except that in the former consensus system, the user needs to stake a specific number of tokens before they can take up the role of a validator.

Validators generally earn a bit more than ordinary users on any blockchain that uses the PoS consensus mechanism. Moreover, it is on account of their work that the PoS framework is generally more efficient and transparent compared to the PoW framework.

The modern-day expectations of a Turing computer capable of solving all computational problems.

Turing Complete is the term used to describe still-futuristic machines or algorithms that can solve all computational problems, regardless of their levels of complexity. Such machines only require time and sufficient processing power. In blockchain, these machines are used to determine the level of network complexity and operation, which also indicates the efficiency of the blockchain for carrying out tasks.

Turing Complete is not necessarily sought-after in blockchain applications since it also has limitations. Thus, Bitcoin, for example, is Turing Incomplete, thereby keeping the blockchain somewhat straightforward. On the other hand, Ethereum uses Turing Complete mostly because it requires higher accuracy and complexity for its smart contracts.

UTXO

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