0x87293dc63a4796f4fb993239febdc8988bc3aea9b35b42d2aa6329d682815a35

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.