0x65a9662ab3bca69dd5a2db7c4bf25fc46d23ef0f076d0e350caecbd6a0485969

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.