Every SLX On Air Proof of Play PDF carries a SHA-256 digest in its attestation
block. Open verify.simplylocalx.com/<digest> (or scan the report's
verification link) to confirm the report is genuine and unaltered.
Report authenticity is checked against the original data — the digest is recomputed
from stored records, device signatures are hardware-backed, and nightly Merkle roots are timestamped by an
independent RFC-3161 Time Stamping Authority. SimplylocalX cannot alter this history after the fact.