IdentityOf: StorageDescriptor<
    [Key: SS58String],
    {
        deposit: bigint;
        info: {
            additional: FixedSizeArray<2, IdentityData>[];
            display: IdentityData;
            email: IdentityData;
            image: IdentityData;
            legal: IdentityData;
            pgp_fingerprint?: FixedSizeBinary<20>;
            riot: IdentityData;
            twitter: IdentityData;
            web: IdentityData;
        };
        judgements: [number, IdentityJudgement][];
    },
    true,
    never,
>

Information that is pertinent to identify the entity behind an account. First item is the registration, second is the account's primary username.

TWOX-NOTE: OK ― AccountId is a secure hash.