0xc7b392720e457d7dd3d940b0251f02b1b5867cb2878eba3a43d68c545977f441

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.