@subsection Multihash

A complement to @code{Locator}, enabling validation and generation of multihashes for multicodecs that have been registered to the contract. 


@table @dfn
@item ERC165 Interface identifier
@include ../../build/MultiHash.interface
@item Solidity interface definition
@include ../../build/contract_MultiHash.texi
@end table


@subsubsection Using @code{Multihash} with @code{Locator}

Given the data @code{foo}, the digest algorithm @code{sha256} (multihash prefix @code{1220}) and a base url @code{https://contentgateway.grassecon.net}, the result of the methods may be as follows:

@table @code
@item toURI(sha256(foo))
-> @code{"sha256:2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae"}
@item toURL(sha256(foo))
-> @code{"https://contentgateway.grassecon.net/12202c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae"}
@item tokenURI(toUint(sha256(foo)))
-> @code{"https://contentgateway.grassecon.net/12202c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae"}
@end table