Approve (sign) a parked emission
Applies one distinct-actor maker-checker signature to a PENDING_APPROVAL emission. The signer is derived from the bearer token. A signer who already signed (duplicate) or who is the maker (self-approval) is rejected; a sign past the approval deadline or on an already-resolved emission is rejected. When the appended signature reaches the required quorum the emission flips to SUBMITTED and the existing outbox dispatcher liquidates it — no dispatcher change.
Authorizations
JWT bearer token issued by the identity provider.
Headers
Bearer JWT token (the signer's actor subject is derived from it).
Idempotency key (canonical; legacy alias X-Idempotency-Key).
Idempotency key (legacy alias).
Idempotency key TTL in seconds.
Path Parameters
Outbound message id of the parked emission to sign.
Response
OK
Request-scoped correlation identifier echoing X-Request-ID.
"req-7a3f9c2e"
Outbound message id the action was applied to.
"6f2c..."
True when this signature met the required quorum and flipped the emission to SUBMITTED (approve only).
true
Post-action message status (SUBMITTED on quorum, PENDING_APPROVAL while awaiting more signers, FAILED on deny).
"SUBMITTED"

