The VAID proof-of-possession request signer (TypeScript): signs requests into the four x-synthera-* PoP headers, byte-identical to the Rust and Python clients.

The VAID proof-of-possession signing primitive (TypeScript): RFC 8785 (JCS) -> SHA-256 -> Ed25519, byte-identical to the Rust and Python implementations against the frozen conformance vectors.

The open, self-hostable reference mint (TypeScript) for the VAID standard: mint a root VAID and mint attenuated child VAIDs (scope/capability-contained delegation), byte-identical to the Rust and Python mints.