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.

“Keeps my watch accurate”
Google Play · 5/5 · 2026-08-18

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): ee1c91932ec401b8e7aa43cf3e8172f7efdfe3de5046b877999419fc57646518
Signature (Ed25519, base64): jIiFwGw8/v5Uwg+osWisdYEYziir+xcXj73iZKmU1TvXNAXYvX4jsqljP65DqqxjpBt9Q5xRh1ePILqcNXhkBQ==
Merkle root: cc9af896bdf0beb88857e1dcc841c404ccd4c59cbcb6932f17077fc8aa87fc23
Merkle path: ["ee14d6f7a00848ac29565e30bceeec2f60b27314ba257f6153fae93536dedc18","14e9bdfa2c2d5ccc6e73bfc4845759757102615116914717b1a9a87aaf92c12f","e02e9a4d1c2bb3e7be939bd41a981ff56cf6b6d4d97114add42b0337971c81c2","8bfe0828ebed7b342f31ec15f66d9fcb08fbc4421455f601194832fa5c18d772","8864bbea0d5354992acd22dd407b6f5512afb93e5522cb5b94892898742663f5","ff59e435eab81acde9d5f3acde1d79c2ae50c7d4b09c5f289bbf7299b3f33947","0cd0eeacb770de992ce985a799a8e9e2b5b7a5e76aa675af19f216dbbd8b5e17","725a3f0e382456741d02f7867667e50bb601ce7449d2298dcddb129024cca7a9","a3d8bfb715f0d891215a6ae6eac5fd2c57eba2cff374ee566ee9059a5b10d35a","401b49a54f45c8c9acfff668ea1c184b5ce58b8957ebe8bbf1ba4e5efc192927","4457b550d3535ad364af77d0019634ad4d13b4e4e7b96fa986cc433d76df568c","b0130f46679fb2f2fd4ed979a0ae609a792ca0dc069edc4c865be7c981be5d3c","b7e7321936ec01ddf1a27939d7f763a96d242072647f162bf95538c0d78946b8","061d6f557e045828e58e062e2990b1f7ebc6103db2774df447dccd9f77833f8c"]
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":"de","page":"brand:casio","quote":"Keeps my watch accurate","rating":5,"review_date":"2026-08-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.casio.wac_app","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.