0xb8cbd6cd1030cc12fa445ba3bd40fd8329a0f8b98454c346b22bbc49d9a931dd

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.