blockchain

Proof of Service is a mechanism in which nodes perform useful functions for the network and receive a reward for this, provided they hold a fixed collateral of coins.

A road map is a public development plan of a crypto project that describes, stage by stage, the goals, key milestones, and approximate timelines for achieving them. It helps to assess a project's direction and maturity.

Delegated Proof of Stake is a consensus algorithm in which coin holders vote to choose a limited number of trusted nodes that create blocks on behalf of the entire network.

ECDSA is a digital signature algorithm based on elliptic curves that allows the owner of a private key to confirm the right to dispose of coins. It is precisely what protects transactions in Bitcoin and many other networks.

An orphan block is a correctly or incorrectly formed block that the network ultimately rejected and did not include in the main chain. It does not make it into the blockchain's overall transaction history.

An output is the part of a Bitcoin transaction that sets the recipient's address and the transfer amount. A single transaction can have several outputs at once: for different recipients and to return change to the sender.

A block reward is the payment a miner receives for a successfully created block of transactions added to the blockchain. It consists of new coins and transaction fees.

Gas is a unit measuring the computing resources needed to perform operations in the Ethereum network. The more complex a transaction, the more gas it consumes and the higher the resulting fee for processing it.

The genesis block is the very first block in a blockchain, from which the network's history begins. It lays the foundation for all subsequent blocks and effectively marks the birth of a cryptocurrency.

Gigahashes/sec (Gigahashes/sec, GH/s) is a unit measuring the computing power of mining hardware. It shows how many billions of hash operations a device performs in one second.