0x09a7bd28ccc42841e5323ee0adb7fe294a3cdb7d22172fc4163560283630a387

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.