A certificate with cosignatures is known as a *full certificate*. Analogous to X.509 trust anchors and trusted CT logs, relying parties are configured with trusted cosigners ({{trusted-cosigners}}) that allow them to accept Merkle Tree certificates. The inclusion proof proves the TBSCertificate is part of some subtree, and cosignatures from trusted cosigners prove the subtree was certified by the CA and available to monitors. Where CT logs entire certificates, the issuance log's entries are smaller TBSCertificateLogEntry ({{log-entries}}) structures, which do not scale with public key or signature size.
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