0x42fe4533b31ff7a65e6b4ec2e740e23215fa674583760b4d64580bcd21eea7d5

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.