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 simply can't do it technically.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
43121002c50651a2d41f2a8a5a6b92e1aace0b35f0c9cc99cac438df4179b92f
Signature (Ed25519, base64)
avMrt6BUmPdHV30UcxShGGCAyvovBI1Wx0jMLAqDW9fFan6bT39bnzBFlfInkV6h/zn1f64Y3XhyDWUGBaxTAw==
Merkle root
825dbc6ca55f00c6c81d8de0f7a080bad31b79dfa0e721dee7ded0e9c294ebb9
Merkle path
["43172dccad2561656509fa3e97e08f7227ebe35d8dd348075b046689dd1a5c9e","840e99b84fc64020b6554350bd772b4face90631030d9ebaa5c0d8b77467abd8","6d191cec40dee4befeac3b6b94fbbadc9f767b2f6723b4d6baad7bfef49ce7b5","19ae2a128f00e1a21c912cfba55e4fbdab4806d8ae5a22ef73d3d41315718170","055799f113ac2b156f0de594b6895979084239af706cb801d65a6eb94f241374","56bd4839858d4aece82b0ddbbc712e2a6ad65bb0e7eb6396dd962fcacd680f31","cf66a7c536d539b145b4a25803da1cbe2d78b436bc31fa638e097eec31090884","a457563fabd339a74a060817908be59cc554e9bb1fcaf4a55dea789ffaf94b78","4aaee8e2f5176faa89530c5fa5dd66a7800d04394f16b3fbc57dec879e65527d","f819d222e3c138cacb2d21befb04495849ab9f599ca63493ce4e7385dc8a1b87","c8b7d8e613e305123bcaa9af1ed1a7d0c72af972c727013e1367bc0e5df8173c","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":"I simply can't do it technically.","rating":1,"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.