0x6d6b8294af327e5b6b91d2e0a694e16cb158cdf4707383ed5e2d2d48aacab8b1

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.