0x5956d9fd3ca8c70973f0f98d7cd695a4cf40cf7dab3b278bb88af1e0aa8fc7d6

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.