0xa093b12056bb8d9f5eefae7d8dd75b5c66a8c530e180491011afcdd19d40f39b

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.