Builds the Anchor that POSTs one sealed checkpoint to an external endpoint over HTTP,
the row as plain JSON. A network error or a non-2xx response throws a retryable
PROVIDER.FAILURE; the seal logs it and moves on, and the checkpoint id rides an
Idempotency-Key header so a later re-anchor of the same row dedupes at the receiver.
Builds the Anchor that POSTs one sealed checkpoint to an external endpoint over HTTP, the row as plain JSON. A network error or a non-2xx response throws a retryable
PROVIDER.FAILURE; the seal logs it and moves on, and the checkpoint id rides anIdempotency-Keyheader so a later re-anchor of the same row dedupes at the receiver.