The United States one (USDC) is an ERC-20 contract deployed on Arc. Everything on this page is read from the contract itself on request — the name, the symbol and, critically, the decimal scale. Arcscan keeps no symbol-to-decimals table: two tokens sharing a ticker routinely use different scales, and assuming the wrong one misreads every balance by a factor of a trillion.
Tokens are contracts that track balances in their own units. Always read a token's decimals from its own contract: on this chain two tokens sharing a symbol routinely use different decimal scales, and assuming the wrong one misreads a balance by a factor of a trillion.
This token uses a symbol that impersonates a known asset. Anyone can deploy a contract reporting any name or symbol. The contract address in Other Info is the only non-spoofable identifier this token has — check it against the issuer before acting on anything shown here.