0x20d3caf9a230530dbac6eb4c97e4a6aa7de485896400e03c1baea3407349c460

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.