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.

“Recebi cupom que fez eu baixar o app”

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 2890214870

Proof data

Record hash (SHA-256)

e76a5a33f96e01c779250346455e38d103dbf50358637beaf5ebcceb76d38836

Signature (Ed25519, base64)

Gx9r8uGrlzy7lQ2aatSUc8cR/dP4yxjTbMpdE7mBu0q1bWtyxI2i+rDYRATB7ZbfUYfPITmpWvZWKs5Oi/dgDQ==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["e76a1df11e448db6b57a34174c680ac6c0cb13bfa096c3dd51dd69412467c8b8","cb1807954d1ca8fa0522726ef63c43898dddf1844f16988067f3bfbf281f88e4","c8ac8cf7325bacf49cfd344d34129294cdc167ee5cbad1ccc4782c406d81044b","792ec07fdcd292da062d616963f0e973d1c73f64040b298534fdf245989d39bb","ba03beb594445d386a1ca74daecc18aead1e1d8cb6b4714aadeb3fa896208216","f731290fcd8517a7b80ebfbfcc9de58ce08255673d9cc2e61ab14058c143e494","f7b8a0cb7d9963fac1bd7f49936a6de9296a3a7fc5093aac139ee3d111dc4942","a69c31cab4528bd20d402554600e15b88575aacbfe74a9774008052466dbb180","be41bd8546adc64b739cd6e0652ea968a0c6eba58a8b1c15ebf278f0bbdb11a1","476218470bb67d7cac5031e23775293c3d0bac9b1e59f022bc8c9851fbf76760","0eb1c910a9eb5465c9723d32a7431b860e3120fcb0e7626e389d2de0886aa539","e6456924ccf5107b881b07d90cf3406af59630f9ee3f7de91796507d1a32c91e","7e36832bb556fb5b64507b00f7b2b4685623b814e769e9b017578a59d2954d67","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]

Anchored

2026-09-19

Public log entry

search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…

Expected log hash

1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"pt","page":"theme:rappi/ordering/pt","quote":"Recebi cupom que fez eu baixar o app","rating":1,"review_date":"2026-09-06","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.grability.rappi","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (04b39eaa56e1…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.