0x593478c6bea82b4155bd93271251a25401b6b6984e5c93df22fcb49ee2f537ce

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.