0x6ef4ed8df7e0ec69773d1a6c8edc0042f535dff58535eb2bf23d976761aa04d1

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.