0xd4f82d5566a469962ca33729d9c939784d6d3b06be91b9101c6f1ecc50449991

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.