Verify the stored object still exists in the bucket and that its
Object Lock retention window has not expired. Does NOT re-hash the
stored body (that would require GetObject + a network read of the
whole anchor); checks the metadata sha256 against the recomputed
canonical anchor hash for a constant-time integrity signal.
Verify the stored object still exists in the bucket and that its Object Lock retention window has not expired. Does NOT re-hash the stored body (that would require GetObject + a network read of the whole anchor); checks the metadata
sha256against the recomputed canonical anchor hash for a constant-time integrity signal.