0xec29c1d4e6f2664e3f6d9fed54c0517074c2fc9750b5d50c2514f12d7ae591e7

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.