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.

“é um ótimo app que sempre tem vários cupons”
Google Play · 4/5 · 2026-05-09

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 2893887498

Proof data

Record hash (SHA-256): f1e883ac2a76a4ae778abf8e5c0de7ec971db7c866fea235ffcd4111d337efda
Signature (Ed25519, base64): H45vyUhptNrh9kgclB+hyjSJ9jeoCr4mAb3wrIPbk3QO+fRNSHuBiMVp423molQIq9ib2haFqDt8Yw4kG2uDCA==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["f1f0e536decc3f750f6993ecb4a6a0658c48f30c98bfe109f9e807226adad831","0e55bb30f32d2e8238769d25d83434274358515f7cfe2e180e8dc2119284c1aa","9970c428424b38ac4d2732ae8ee6946dc837e0a1828036bfbce3c0a9294cf006","dbf044383bc19c5af0e432327b1ea7f44b1cdc3c306c2826d700f6983dddad43","ce98eee804779cd4686b33959366b7a1323788020519bae90155269e900ab097","8db49998181398bcb43d2687f12d16e523ef8739fc7a29e2bc52dd9ac3be52f5","9c20a30d54f8301762fab8f402c4c531c891abc82fbbcece756721a4e4e4d163","56dd0bbd6316de646bd2999fb55a16559f0df1823c3f8a6417e7fc658162b326","ec81fe4766e73e854b675fa8fd03d97665d989a87178d95ce6bf0ecccb967ad3","a1ed2643d0f8f706561c246751c813b6bdf9e8556e2e80969068729a7fe3212e","a90fa58de5999e596d28283605afaa5c0df6592f34abc44393d5449ed42372bd","71cd50b067ff32d173a37554b8e65642cf533aa669254bc42c5be6ecf57ec03b","34bf35d805c4f7af315854dc10a7a10ae0ea054d46dee40b360c3f04f8b8e60c","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]
Anchored: 2026-09-20
Public log entry: search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…
Expected log hash: 90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"pt","page":"theme:uairango/price/pt","quote":"é um ótimo app que sempre tem vários cupons","rating":4,"review_date":"2026-05-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.uairango","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 (2f068f3de56b…), 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.