E for ETH Address (2024)

FAQs

What is the regex for valid Ethereum address? ›

Ethereum Address Regex Validation

[0-9a-fA-F]{40}: This part matches exactly 40 characters, which should be hexadecimal characters (0-9 and A-F or a-f).

Ethereum address as an account

In hexadecimal, 2 digits represent a byte, meaning addresses contain 40 hexadecimal digits. An example of an Ethereum address is 0xb794f5ea0ba39494ce839613fffba74279579268. Contract addresses are in the same format, however, they are determined by sender and creation transaction nonce.

Ethereum addresses do not differentiate between capital and lower-case letters. The system may display the address in capital or lower-case letters after registration. Although capital and lower-case letters are not differentiated, it is possible that an address with even just a single letter difference exists.

On Ethereum and other networks compatible with the Ethereum Virtual Machine (EVM), public addresses all share the same format: they begin with 0x, and are followed by 40 alphanumeric characters (numerals and letters), adding up to 42 characters in total. They're also not case sensitive.

The test() method of RegExp instances executes a search with this regular expression for a match between a regular expression and a specified string. Returns true if there is a match; false otherwise.

The "invalid address" error occurs when the address you try to send to does not match the network of your wallet. For example if you are using a Testnet wallet and try to send to a Bitcoin wallet, or if you try to send to a different blockchain.

An ERC20 wallet address is a unique string of characters that is used to identify and interact with an Ethereum-based ERC20 token. It is a 42-character long alphanumeric address that starts with the prefix “0x”, just like the 0xmetashool handles!

Ethereum addresses always start with 0x. This is because 0x is a common prefix that indicates a string of characters is written in hexadecimal. All EVM-compatible networks also use the prefix 0x.

Ethereum addresses are generated using a process called the Elliptic Curve Digital Signature Algorithm (ECDSA). ECDSA is a cryptographic algorithm that uses a pair of keys, a public key and a private key, to sign and verify digital signatures.

You can safely give out your Ethereum address to friends, family, and acquaintances. No one can steal your ethereum using just your Ethereum address. They'd need both your address and the private key to it.

Are Ethereum address case-sensitive? ›

Ethereum addresses are not case-sensitive: Unlike some other cryptocurrencies, Ethereum addresses do not distinguish between uppercase and lowercase letters.

An Ethereum address is a 42-character hexadecimal address derived from the last 20 bytes of the public key controlling the account with 0x appended in front. e.g., 0x71C7656EC7ab88b098defB751B7401B5f6d8976F.

Ethereum and EVM-compatible

ERC-20 tokens are the main Ethereum token standard. Ethereum's native cryptocurrency, ETH, and ERC-20 tokens can be used on the Ethereum network. In addition, Ethereum addresses are interoperable, meaning you can use the same address across all EVM-compatible networks.

Earned value management example – 1. Let's imagine we are building a wind power plant. The project is set to be completed in 10 months with an estimated cost of $500,000. The project has been running for 5 months now, the team has spent $220,000 and completed an amount of work worth $255,000.

Discovering your EVM wallet address is a simple process. All you need to do is navigate to your wallet and look for the 'receive' button. Clicking on it will provide you with a unique alphanumeric address. This address is essential for activities like receiving funds or adding custom blockchains to your wallet.

Ethereum addresses are always prefixed with “0x” to indicate the hexadecimal format. This prefix is necessary for distinguishing Ethereum addresses from other types of data. Hence, the total length of an Ethereum address, including the prefix, is 42 characters.

Regex Patterns for IP Addresses

\d{1,3}\. \d{1,3}$” can match a valid IPv4 address. IPv4 addresses are made up of four sets of numbers separated by periods, with each set ranging from 0 to 255.

The regex will consider a URL valid if it satisfies the following conditions: The string should start with either http or https followed by ://. The combined length of the sub-domain and root domain must be between 2 and 256. It should only contain alphanumeric characters and/or special characters.