0xf2039b03630f2fb243125f092efc68bbe0f8b229b919bf6ba47ca314cdf3ed2e

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.