0x0bc38053e1ce851bf82a840f94d4d49a3a383492a899f27ed534d2086dd43f81

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.