Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Very good customer service”
Google Play · 5/5 · 2026-06-15

Checks (re-run on this request)

✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
✓ Public transparency log — Sigstore Rekor log index 3273402563

Proof data

Record hash (SHA-256): 2bbd0f957e68f4eb61256d75a4c8415fd887e0cad4f34e76a9609a43e4dfe08f
Signature (Ed25519, base64): 8IvTpqZcE5JG4Ag+0NgsiqbBL/aNf+iE6g/QflAM8se9hAkh9g1m2qHXRkp13F+6wppjHO59f9wBuzQYfEbpCA==
Merkle root: f157206eaf0681e32c282b6c87b482d5b05edc0371242c4555dfe07a805d46ee
Merkle path: ["2bc0a83b8c9132f492ebc0806f7dbc7b1c2bc1bbf8beab8e612643da6019813d","7e120ed657543ad903a29b06ddd5ca62f9765c926ec1d1cb069da516099b4d2d","8033d537577eb563ccda7d309b592db17b5e9646c70cebdbcd1f3323c2dc7c27","bd1eccc54e079f984489bf96539631cd2903b48cc19b06d41338d42336284bd1","94167b2df6a3ac95fb32fc708c04fef18c304d15abc6985e5e824d0bd232f6b0","2e846725d2e27e77a5de12d4185706ee9ae4c675ff20a1d0d4d29094986ec586","ba0cc299c4d51c0a5c9b0a77001ae5a094c40051346d576be08949c02ebdef40","57b24358a1160d77b8601ba99c8c7af4a565e338a5765ae8f39d4a6bb44f3c4f","4f7dd2e0cfebd9bb571158eedd10955012c72dc3056d20b77bc285d1d9e8d03b","20024cd1da55dee95883ed6cbfb345ab1e13cfb473ae4678771a8b491dc0b770","b76ee18cb88fb0eadeb62b2f78cbf13da6d3fda1e321c45e4448f5580f333312","c983079c81f3fe3701fa74b1f3d07ba4ae521d2aa67e53391f4fd7e312ac9423","18d3f68accc8835a5c40f0c374bff5769347a644756ac8ed830a1459ec4a0187","72cec015fa128b419dcf741d3ca687936e9595c259ab78dfd4256d8340270e61"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273402563 · entry 108e9186e8c5677a6df5…
Expected log hash: d39be9954db9139b182dabecbcfa2b9510337ba2b23ae56a3f9ebed18578385c The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.
Canonical record: {"dataset_version":"v1792122859337","kind":"published-quote","locale":"en","page":"brand:quero-delivery","quote":"Very good customer service","rating":5,"review_date":"2026-06-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (f157206eaf06…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.