0xc2e1cd8db6a300926ea0c75b4731c80603237538a586b864f5adf7bf3eed8a3d

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.