0xff0c72c184627e55271ecfc4641bad278d6f88ec97d7fb14b9e21cb30bc5151b

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.