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.

“My brother showed me this app.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
38fd7132fbeccf30fa6ee7710e20a14b0b268ed93867c9893f5b4a6c742e9aa6
Signature (Ed25519, base64)
ULLhxRI0jLGpLa3tQZqM3SNBDj+d3q3UUlo6JoXPY+is7s54hYGgPH0MBcS5/2MgfLuOs73XktSDdaSCFkg9Dw==
Merkle root
825dbc6ca55f00c6c81d8de0f7a080bad31b79dfa0e721dee7ded0e9c294ebb9
Merkle path
["38fbf815241c5d6d137af3b394c73eeeb1bd70e339c5bb46d676064afd720a04","23020c30720a63cc480bce63bf24e9fccb7437bc3889f15958d6140fc45d4a61","5d88b61bd823e4b0ec7a2e85f5cfa5f7c634fb8fe71bc90f218fecd54baac625","12296ad34f3d62aab26c4b75cf4fad3b064200c476fd1f646cc9184e1a0695ab","589941b885d22193f0e0c2e5d06292682b55592f90fa912e5c4eda98f555f2b2","fc8d02c44743306ab3a4a20642e55783c6d2a928efa2d46aa001729a6250d728","367e7f15cdc18e37a45154d792f5bf1e98825a4767fc92dd88a1b3dc89a23b3a","5f1a09581365811dadafdd50b4c1f71e511554973e773d8b38f5b2d1f612e3be","a70fda4f6789e637af737e144e375d8ac6d1adc3c848b1f33b8a6290df8e12ee","511313c4bcb370622a3c70c8399e6d7bdbf0e0e94e90f87b4319398f8deac130","a1e59f881d6bfb0bb60e505cb797755e7e38f570bedf7bfe58f6c8bf00ebf5b3","0526b5b7adf235fca820e27d7e9bb58328407474fe694c840500fecede0e4f46","1e2e9420d8c4747dca96dc342727525f4c47cf2390ef42ad69829fe37156235c","04c4bd8a9ef95bf5648c9d023612bd1f2446e83a6dcf83e612d031a5ea30e90c"]
Anchored
2026-10-13
Public log entry
search.sigstore.dev, log index 3240422411 · entry 108e9186e8c5677a0ea4…
Expected log hash
8667b0db28913263098c19cb6387cf64b6d68b1b8f2c4242d3139d96cef5da0d 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":"v1791861703078","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"My brother showed me this app.","rating":5,"review_date":"2026-09-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (825dbc6ca55f…), 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.