0x5173be0a8f973568bf0807c5e97bb14e07b3ee9442b58ce9b20dc86c03a5c93d

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.