Describe:

• What the user must prove
• Which attribute(s) must be used
• Whether to use GC, MPC, or ZK
• Validity window
• Required policies

Examples:

• AgeOver18
• ResidencyInCountry
• CertificateOwnership
• ID-Validity
• Credential-NonRevoked
• ControlKeyProof
• StateCommitmentBinding

A proof template is like a “recipe”.