0xa1a0088838213bbac06e53ad7ca4a811e70ea62e19a6b48a95f67d20d02c38e0

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.