An EVM chain address (Ethereum Virtual Machine)

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An EVM chain address? It's the unique identifier for transactions on Ethereum-compatible blockchain networks. Unique, indeed.

These addresses always start with "0x". Then come 40 hexadecimal characters. Digits from 0 to 9, letters from a to f. Example: 0x1234567890abcdef1234567890abcdef12345678. Quite complex.

The EIP-55 format has brought something interesting. A checksum mechanism. It capitalizes certain letters according to a specific formula. It seems to enhance security. Not entirely obvious for novices.

Two types of addresses exist:

  • EOA accounts, held by users. Cryptographic keys.
  • Contract accounts. From blockchain code.

These addresses? Fundamental for everything in the EVM ecosystem. Smart contracts. Token transfers. Various operations. On Ethereum, of course. But also Polygon, Arbitrum, Base... A whole world, in the end.

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