0x3aa5b50971e5b0563b77c2bdcd86e1e948c7478e5907c554bf6996c2561d7120

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.