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 fast delivery.”

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 3126883925

Proof data

Record hash (SHA-256)

dca7db763ade38fa0550a472bb93c790e2217bfcbfd84f0c8998b0009fd15c83

Signature (Ed25519, base64)

wpKd79s4G4rFNonzDCRFfPr7wH+ZRxT15LRf+eCgvK9xBtBo3fjgmCdtjEJzUK+pEMW6Ghx6YciCb7fgljGADQ==

Merkle root

0d7fec37eb7aa7ca022c461398d36283692153bdca7d5292b2302abb6878e5f6

Merkle path

["dca87c5e62c1cb6ffa43a9d9e37f114589903729c516b4ea085a49877f3d8434","f28010b0e808fa67d58b8502157b10daba806d83f222bb627381371d7540a1d9","d5f326155c6e029c17035c17bbff866caa5dba386e87e9f38280d792ed495859","e6949280c08f829115b567344753b82abbd2927caf88e44069b2a44ddd5c8cef","630b57a698383a29164172448fa7feda47adb7f9573f72403533507a53ffed0f","31955db0d14812153285be422e06e8ad015c70f5a945fa70e89159e48cd93490","9738a85a55d67573504da6cea2cde86269b0c013bc1a3f24d2514c121a8bcc1d","3b5295e99f9255cba7e010c859cfad7a964fbdc27e8a9c1ccb4d5e7776279e76","950b9665d1391bbca5af7e96fff45cbf5e1922a00c1d66e31e319055f0e37ac3","96706af0a4ba369f90b21730bd19b570dbf7ffc05c14c4810d17056e0556a44d","981b78aded1b44842c0ef5541fe631a0fff7a0b05433cb020add744f00504cc0","8d3337e000c4ec158eda4708f964175e9261482897c79ef95a0ec9be34fb7db5","956e9e262109df10194605d76388d273cbe98f6754d203b26bfbcbec8d5e6b13","a5e4945621803ecfaa28b41399735783919e0518f2827e7f6aa82a6ed0687d7d"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3126883925 · entry 108e9186e8c5677a6678…

Expected log hash

7790667e260445bf729ea3061132c2116b163a0e0b944eca343c9e8408350ef6 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":"v1791359818972","kind":"published-quote","locale":"en","page":"brand:uairango","quote":"Very fast delivery.","rating":5,"review_date":"2025-12-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.uairango","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 (0d7fec37eb7a…), 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.