0x9eebc0f85cc8bdbbf31a66571d240e0031e447e73ebd976cee59e9c0e3539a02

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.