0xcbfedca54faa55c32c3b03c86c0999e72c98d782946ac5f657ddf258b20ae0d1

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.