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.

“PDF file cannot be read”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
9af678055ead84b899129c0dc0ca7d9eebf8768ad5b73f895260a8ef269751f9
Signature (Ed25519, base64)
lrtdPs+l/QgcMCwHMvNAfVLBWZs2opYnC3slohcSOIzHz5q5TXiQYyYKB5WIVax/4MD6O8UlLcuMZZwkx7QcDw==
Merkle root
2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path
["9af14154743a8f759494eb286a543863a357fb952a222166abd87a9d3002676a","f95234a24b69f460868f85db720bea7e28c8370dd5d1d4e6e5e9395168181476","5ca1b0a4e6517ad40e10880ca826382040df2c2976172eb5e40aaa0bf5c0cc65","9079167a7b35b50ba162e2e6fb88213b8c77466b1638f810e11a23d012855d58","c7c45254d48ad364d71813b1c71629275473f7ea60bb02bf2248ad60bf328389","090cbe8ee488743a0584983959783509084d2c0df3370b449adfba8111c050ce","6967efe9f29a9bda350cc1e7376c75bef13411c24ddf6a32530c9ee7ea39a374","69520133faa6501b7ab71c85dd310cf709b6c156a1212981de7e4fbf0f388d7d","b9f30ec44196718f2cf9381d445d6569eed3b11c132789777c3989fefb86c56a","97b3ef7abcefcf268bc0e823543c8f45b95ea7b956ec024d31884bcca1a921ba","6900195e4203d1c8cd26c13eff44866a664af0e306b06dc11a266a9357e24fbe","c22fe83bd144008efb96895e17f4e6f8919a56dd8220cca85f3aa44cd67de0ee","27978d996981aec54e7305bc9bddff422c8ed02487f8eaef12f84d0b2ba90b9f","537f00dd60bfbd8c049786f7eae4da8a735af5b60dacd3bc1b6054b8ac3175e3","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]
Anchored
2026-09-20
Public log entry
search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…
Expected log hash
90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"en","page":"theme:concordia/ordering/en","quote":"PDF file cannot be read","rating":3,"review_date":"2025-09-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (2f068f3de56b…), 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.