0x8e53ea3ab154d8a20f0027bfdb310252394535d1a0481697865a4b8f0b93aed9

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.