0xc502699aeb120c81d3ee2a474de40d950df524b0c71515d35dc7d2bdbe5f7493

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.