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.

“After over a year of using the app, I must now say that accuracy has greatly improved.”
Google Play · 3/5 · 2025-10-19

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 2632227861

Proof data

Record hash (SHA-256): 0d84423e631717cc16454b61f7309f89b5ac84e36473ba3c6e825f0ed77489d6
Signature (Ed25519, base64): F/OcDgLX8Lu32Tm8dX+/PFGDphcw8jdTYCdrdyyM6UUpvRucM5KYpkQ3wBh+0xdE5zgxtzJwAiyogAubuQnSCg==
Merkle root: 9809cd1f65a3d4e144579745a20f7882b635b7ad9e75f8b31fa040fcb7e74470
Merkle path: ["0d85e842afa1111a06b5188e72a86e3e21f3ac3a6072584222d8b7edf136d204","6a373865b7f710b29ed130b3f4d7123bbb594091a57db4ddb854afd8643e19e7","3612ecd16393dedf19ab12ebed01cee32f550686a302db033cfd39ab1398eafe","615fc10f9ee51f9a7cddc9b361b42b09fc08d3d303719cae775777938dc8bdab","95ad5b5c00e16845d438b7ebca3fb9946af79fbab7a166d3111808cde0b04c0b","b7cbe6a10d97d3b6b27610ab7c85155269d01278a13f12a004d70c0372cc1200","08ad87dfe8f2f3a0f39fb803afe60047a111f9c24cc8e256f832b2a336c2cc76","0820c9e14791dd66260c8cbe5efd133da27490a7651aea0819f4d508cb9f4db7","3ce617602fbb999fe6def311a127dd7f20e6ca22ab26998f235a691de75bd9d8","a825ac2c874560ff482a5d3363a1858ef340ba4bdf8a7ef7bfa322036f7fecca","07a027eb2fd4a498e30798d2a1f2b58a0f4b4ecfd380ccd4b59009139ea60da8","481f7ef0a039f0ac74ac45e941b1f75812097a8a1d86b01a2fa72df921bd5f85","c33a9efcd0298a63eaba2136cfe18dd1517727e1b9e9bbb60122216df6f0406f","13cef35a80378a74af4faef102936039d3a54a741843391bcf32134dd8e61270","5420b3c3f4a7cfc61de84c757928b42517e167d282e291e38912f2169ce60350"]
Anchored: 2026-08-29
Public log entry: search.sigstore.dev, log index 2632227861 · entry 108e9186e8c5677a52ba…
Expected log hash: 8be5978cb1be4c5daa434c41d0072ddb211c64c3f93b137b58c71c55ff15eb8e 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":"v1787972611008","kind":"published-quote","locale":"en","page":"subtheme:meteomatics/quality/forecast-accuracy/en","quote":"After over a year of using the app, I must now say that accuracy has greatly improved.","rating":3,"review_date":"2025-10-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteomatics.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 (9809cd1f65a3…), 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.