0x58b0afe026707c1b81c634ab0846c2fe5c47eaa89f4f32cd4d4d58ba473f11ae

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.