0xf92ecb4edc247f40ec65c34f7b52ac599d33015b4c7a0a6ab4d7ae8e183f9917

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.