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.

“I can only recommend the app”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
4a1a83a50bd81008984fdc5a1448ac1034f7f2356eae66a8bbf7fc3f1035d06d
Signature (Ed25519, base64)
blz7jSkfnzvbkROoFKNvxkkIOWRK284jz0Pj5rTAzR4TyIxGuA7jsM6xSU41oR5Z0LaOA+9zGAgGLYGub8XbCA==
Merkle root
240cb93491796b59a812f7182e64c43781541345e454701e4066e1786c286494
Merkle path
["4a1606f2067fb021edb9b6411b692cf75df5e80293836767cbd28f78c1440c3a","42506a8500c70750c0818b2e33cdf9be0fadeb6b6bafa327dbd102c44243e811","eb56360824e9962b3b0077c39742dfb4c5a6906734d0632f43b6ef07ccea39f1","bbb7ffd8613bea5e75c6bc203af0f89362550d0bc90aeb55e85c2e3ede5e2709","0dcafb60ca651911f0820d68c533eb56a6a3ac614b383fc00c9947c7c13e241a","45b2a962b59c1dddb84dd191184c2b87b83c1123c4ed37751cfbefa911b9f3aa","c8789c4b36368807c1d72a48eb19321a8589cebe913f24f1ae3d2833c6f45aa6","8763ab0a7ee30c1b0b219d298e6e4b9ce765d98f3e1e08a0747d646e7d3790ab","9a27d04d796040eaa79b677b3125f5ffbc96c652ab4eb2866a95f7325c8c4020","fdc6acf01eced546f9d2b8658934cc651d62ba2d57e1317249c015401ec0b9a2","5ad3197fefada8823cb614c9da506ee86fb12989dc027331e7ee50856a840f74","74d570f87708582f870a40ca5a8a7690d6274c3d406d2a50e5092b918cceaf30","d18e44bed2d452ffde94f0480bad35bafd04d9a4d8be46c5e3464f257f0111d5","0d65160dee55e809fe06e5334fb3150d04f822ce1cb47b2ae30b5d21efdf0eb3"]
Anchored
2026-10-11
Public log entry
search.sigstore.dev, log index 3198489507 · entry 108e9186e8c5677ae5cf…
Expected log hash
50393c13ffd4f8ef4c37424a8293b422d8c3ecaf6b9593225e2bb93e0cf2c210 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":"v1791686710415","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"I can only recommend the app","rating":5,"review_date":"2026-09-21","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (240cb9349179…), 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.