0x12981ef9cb69ead4ea87736eaad794bb0711f7931a79ff767e03c44e8f627bf5

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.