0x01259057

0x01259057 is an eight-hex-digit hexadecimal value prefixed with 0x. It encodes four bytes: 01 25 90 57, and corresponds to the decimal value 19,238,999. In computing, such 0x-prefixed literals are common for representing constants, memory addresses, or identifiers in low-level code and data formats.

Within Ethereum and other blockchain ecosystems that use 0x-prefixed values, 0x01259057 may appear as a 4-byte function selector in transaction data. Function selectors are derived from the first four bytes of the keccak-256 hash of a function signature. Without the corresponding contract's ABI or the function signature, this selector cannot be reliably mapped to a specific function.

Outside of blockchain contexts, 0x01259057 could simply be a constant in source code or a fragment of a larger identifier in protocol specifications. Its meaning is therefore context-dependent.

When encountering this value in practice, researchers or developers typically locate the relevant contract source, verification metadata, or API documentation to determine the intended interpretation.

See also: Ethereum function selector, ABI encoding, 0x hexadecimal notation.