0xa5eb0cbca449231fff262ef4f2f51fdf01cd1a515c9c6550a9c9e0bc66abb460

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.