0x7e4af44c22558da589da83d19db045280e7dbe55a548c9adb24ddf6c8ed2cb84

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.