The signing algorithm.
Signature expiration, seconds since the Unix epoch.
Signature inception, seconds since the Unix epoch.
The key tag of the signing DNSKEY.
The number of labels in the signed name.
The original TTL of the covered RR set.
The signature as a base64 string.
The signer's domain name.
The TYPE this signature covers.
A DNSSEC signature record (RFC 4034).