0xf99e9a5e0a9959a795a6397bd8068f97ea65d26ec93a3566506b7439a6f4bc98

How to verify this batch yourself

Take any stamp's content hash, walk the merkle proof in its certificate to recompute the root, then call timestamps(root) on the BA Stamper contract on any Polygon full node. The block timestamp returned is the on-chain proof — no trust in BA Stamp required.