Account

Overview

An account is a unit through which a blockchain represents state and authorized activity. On Ethereum, an account can be externally controlled by a private key or controlled by deployed contract code. On Solana, accounts are addressable data records with fields such as balance, data, owner program, and executable status. Other networks may use resource accounts, object accounts, or models that do not maintain explicit accounts at all.

The account’s address identifies it, but the address alone does not explain who can act. Control may come from a private key, multiple signatures, a smart contract, a program, a recovery policy, or governance. The Account Authority defines permitted actions, while Account Ownership can refer to the program or entity recognized by the protocol as controlling specific state changes. These meanings vary by network and should not be assumed from everyday banking language.

Accounts can hold native assets or tokens, but balances may be recorded in different places. A token balance might live in a token contract, a dedicated token account, or an entry in another data structure. Contract accounts may also contain or reference Account Code and Account Storage. Payment applications therefore need network-specific queries rather than a universal balance lookup based only on the account address.

Operationally, systems should store the account together with its network, account type, authority model, and supported assets. They should distinguish an account from a wallet interface, customer profile, merchant ledger, and private key. Before sending funds or accepting a signature, applications must verify address format, required memos, current permissions, and whether the account can receive the intended asset. A valid account identifier does not guarantee recoverability or compatibility.