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.

“The cost to use the app is reasonable.”
Google Play · 5/5 · 2026-08-14

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 2542751096

Proof data

Record hash (SHA-256): 7fd65aa3771b22b2c53464ba2d6700f5d92e921ec63460bdaa6da1d300cf876b
Signature (Ed25519, base64): WOxronQb8MlvZZThf4rOp1zY+pC4GnngETF6LN80Pe/gGIxgKKXPyIU1WJ+kLBCqlriPp/s8Z+3OFMFYWDEdBA==
Merkle root: cc9af896bdf0beb88857e1dcc841c404ccd4c59cbcb6932f17077fc8aa87fc23
Merkle path: ["7fcf3c65e0479ce0e58d6330b78b4dab31c456ccb678443ee91cb78bc1a8687e","1e8f93b44229e407c6458ae37bf2311688e0bc07e2ecc644fe0caa48a764e851","7a73de75d8c0f42941be5bd5f1b060bc53e859a6fb2cfa375c979179ab0c95b0","2ce283d22ad9f9677804094f9c4d4e53bef3652c50ef6b86a87b05896475b064","9acd55f79d86e401edc9c4004789e9f4f23fbfcb600ae2b226231b194ba4a7d1","4e89c16d9fa9c140d0b64615bb028864e1b7e55fa970fbeadb8adea0db261fa4","2e63034c2c36acf448dea328b733381f529b78a3466a09d31ea93113fbd02f76","a5ba0f73cbe33cc13670f11f53c1a73cd64da131a7261207f65773ce9e60a5b6","771099b23bc1e6d5817747c480c4b4e63a6524c6ac70762bedc12c3b27c2533b","952a05d28327c30fb912fb303beb7f843bac55883b3bf1cbfcd157b525de5eec","b2278c758d4ca0c9a6ab4670d84af611c53971a47dfc5fe3c957cec9f5486828","04e1c79f3cf2bb347746a74560bae907e178fea03ddfb5ad77c4c13d3ce6779f","58b1aaf4ff68687e7006533ee52afa6414f635ffd828ae73a306f5f050aad891","c7065531c3e7c4c7309e4efe4674330d1f0c5150d728171b8966a352ede62d5a","7e6c62c2991c7cac05134c9f9e2ab89c75f6106f706f524eb2e9fa9f554216f5"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2542751096 · entry 108e9186e8c5677aaab3…
Expected log hash: 8251ea19feed4cbe325f48ba93f0e47294878633f5d43178e4a3a023547e795b 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":"v1787281943761","kind":"published-quote","locale":"en","page":"theme:audible/price/en","quote":"The cost to use the app is reasonable.","rating":5,"review_date":"2026-08-14","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.audible.application","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 (cc9af896bdf0…), 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.