0xb76cadc9a1555992e61c39cca09fe45dffdc3a78fcaabab3fa98d5c311facfd5

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.