0x452a1ef1d6fbb1d4992d41c6a02d6fd7adfceaefac0464246ba27929a43a4e0d

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.