0x83074d8a8dae63fa1f8b8784fe1b1ecb3c7b443b3dcb00dbae71a8842d7f27f8

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.