@node Smart contract interfaces
@chapter Smart contract interfaces



@section Technology

CIC smart contracts are implemented using the @emph{solidity} programming language for the (Ethereum Virtual Machine (EVM).


@section Adopted standards

@subsection Signing


@subsection ERC - Direct use

The following well-known solidity interfaces are used directly.


@itemize @bullet
@item
@uref{https://eips.ethereum.org/EIPS/eip-20, ERC20 - Token Standard}
@item
@uref{https://eips.ethereum.org/EIPS/eip-165, ERC165 - Standard Interface Detection}
@item
@uref{https://eips.ethereum.org/EIPS/eip-173, ERC173 - Contract Ownership Standard}
@item
@uref{https://eips.ethereum.org/EIPS/eip-191, ERC191 - Signed Data Standard}
@item
@uref{https://eips.ethereum.org/EIPS/eip-712, ERC712 - Typed structured data hashing and signing}
@item
@uref{https://eips.ethereum.org/EIPS/eip-721, ERC721 - Non-Fungible Token Standard}
@item
@uref{https://eips.ethereum.org/EIPS/eip-5007, ERC5007 - Time NFT (EIP-721 Time Extension)}
@item
@uref{https://eips.ethereum.org/EIPS/eip-5192, ERC5192 - Minimal Soulbound NFTs}
@end itemize


@subsection ERCs  Partial use

The following well-known solidity interfaces are partially implemented in CIC native interfaces.
@itemize @dfn

@item
@uref{https://eips.ethereum.org/EIPS/eip-5679, ERC5679 - Token Minting and Burning} (See @code{Minter}, @code{Burner})
@end itemize


@section Native interfaces

@include accountsindex.sol.texi

@include burner.sol.texi

@include chrono.sol.texi

@include declarator.sol.texi

@include digest.sol.texi

@include expire.sol.texi

@include faucet.sol.texi

@include locator.sol.texi

@include minter.sol.texi

@include msg.sol.texi

@include registry.sol.texi

@include seal.sol.texi

@include tokenvend.sol.texi

@include tokenvote.sol.texi

@include writer.sol.texi