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 2890214870

Proof data

Record hash (SHA-256): e949febb4551c571a0f45bb9d76de2e456c02926916b0b2c46c874cada0621b4
Signature (Ed25519, base64): CA88j/gtvHx8oUodmJohwxnec41wlMBuHearskvqIPPVrH3p+u3Rf4bRu2iPJXmzaC3maqmfBhRwqLFMMW9sDQ==
Merkle root: 04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c
Merkle path: ["e94c397f885e525591eac3eb5f1141b820f82042533619130703cebc276feadb","ced74821756964a6839af66f051d09f8c4792ed3c16734e25eb6832358cb3098","8a9a6309a20de7530b93e71799bb76ced04f2613ef314f7a5866d1bb7f01416c","8a1f354a8ed6e9d2c7fcebc6c9c2267575c69ebc2261bee0fabaded5e6a8a7a5","10125654f4503e78a80a7a3ce3fc8c6df01960f4493bbd098e6592743a797a14","5567baf58342489e6aacb228e56100041e3975137543e7fc3d88f2c8fb7a2f88","b8b8e29853085fca24a656d4f51e9a2fd2333fa7650d77e58667578f3ad0395c","412fc411316c4ab8c23af692df26b85170b6306b1489a926cff3cd2989eb0b01","7fb060c0938988f9b9e1c6bc17ebc06e0ecfac6f23afd783bfffee6bc683adbb","8993f733cd452a9babd3c5a5e54d5f69d72ea823a131022fc4e9c3988d2a547a","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":"en","page":"theme:quero-delivery/service/en","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 (04b39eaa56e1…), 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.