0xf2bd1c04881e036f3e7265cd9a413d2261f64cdfdf0c5e7ca99fe5215aa4258e

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.