0x7f9086725a6ee0266d444f6c9c555fab5e554ce0d2c96a9df21f146821bf2f79

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.