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.

“Uploading PDF files no longer works in the latest version”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
76b397af012688fd33cdc38f984bd5b25b78a6d633386868412918bd943417d2
Signature (Ed25519, base64)
vxMYZq+O8H6faYDK10vUUVdIzWd01b6hDw9dgkxDk3p4StGYfOeL8s8X5SXmbQdgKpKxojX9rDoSQr5p7hT+Dg==
Merkle root
2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path
["76b7ed52ae0f3f4e91d6561c0ce253a03b258f5950739b6cd1ee43599c4b9beb","a366cefa321f4782f4008b7ab918c3babfdf8b5c03d48b453ba666d9e5f13ca4","3858c011f52656960ac82049c4eb456544179dca34cdc256cb3d599a84912d1f","d7711987e461ce85225da1cd7a27e3da6d64b029c33853869e3f67479e413f23","8ca5377266af66fc84c678daed28c06e875133cefcc748bb9d573013f63c8201","2d5d9cb1188aeed22ec9e468ea40c67d881f738bf5774550c1f64b4919097268","356f37251dc35afbae48d56a38fa9cb2478032ed6ea002074324029f4af5c2c3","0395cfd7f93bfc26367e6228a1e4e81b8ee8d87acf3f1c0578a1075044ec4b31","c567619edc50cefee25dfc53ac79677a78192c6b774bc6106682ee2ff0064666","7f36a94bb28f0ba4a88120ad211ef9689445034ae216313f59801dbfc3993cd3","06b6f6d584977ae367194680dfa67ace6b01d63ed0e55b7d9e3bb1ac505c121e","3c6ddbcfa48be5df39d5d13fece3ba9fab7f6eec0e8fcf21a13cdbcc6729a93c","c5d2216bf0003f30213891a39e09a3edafbc50505093b2ae98f61a9c067b5a3c","f2c4543851e26fd9d1e3721e592d66b00f142e537786e975d115c14b9cb61c0e","98191c82333f4385e47f318835e01d44ca8835262c6d0df40edfd5f6a4dc5c19"]
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/quality/en","quote":"Uploading PDF files no longer works in the latest version","rating":2,"review_date":"2025-09-26","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.