0x962e53a2a8b2e1efcfdacca16c4515b6d93f7c4ad2c99ac56502bcd199906c50

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.