0x8342288d6b70262214ab7c8b3996174aa8bab6cf58a710c465342a7bda0478b6

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.