0x1391dc30b2dee9fbf87e36adde43f848b50fe6b0ca4b068117eb7943a4f8be54

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.