0xf1f23bb75145f7542b6d3e8668622419f75e312dbdfb30f9e25bd286a78b47d5

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.