0x7a4a4faa70b9a6c7150ee8528b29dcf6ed9ece52465d792fd4b5177d1b5d044e

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.