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.

“The app is practical because everything is accessible at any time”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2893887498

Proof data

Record hash (SHA-256)

369e6aa5c84484bf45af118a2ac7b3d436d594ffddadaabd6b3c71c6fcd9a578

Signature (Ed25519, base64)

E2AxN2AQcDZl5+qTdgq5OstRZaJdk4jr2ri7QWroTwA567k1x1QFTzI74gFZCm3IgKlZMmwWIglkXCiSIbncCw==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["369ec6a8c7cadcbe957d40afee43c37725abd7028e1662eb4b78dbc6b2dea43d","f84c3dcbbba7d6e308f6ddde3bdef7deee53ceb140cc8356995c087703dcd41c","ea9d4d5ad39b28e87a4e99b0a28aef67b808aec1dd8bc4acc79fdc3be16a828a","d64baa2df0f7151232ce1ad629ffbd5cc930d46babb8d39fa038d0115b8192db","fd6e20cf5aef0004ce31de9905c3446dd4a07fac2d2597cc131c6025ad99a162","f73ea61082a218ddf17cf73c2766a47ef941425c462e0891df4c97495c08f31d","00e0bd4a83235220273402dc12fa9e8b12caf5fd15dd0d7fae9e4523a3cb7034","4d39da41e08e3389eee7e1ac2cd3d39d436966af43977637d543ee716b406959","b60ddc16e6704a189a23524e1c1471ca1b64768a60e0a00255ac6eaa62e65568","09b76453d38425a6062cfe43813cd596622f08887e7658ab45f8bc0288f0f702","198ec620523c93713c12a5fdef13ab3b73c38312f8c69950c0a24237f8311f64","ba64597144ad55469e4304807853557493bdf960abe724dca5437e442c223165","67b7564c01b814702c17628742fb6a8cbfa0e8a213c06511e31c90cf9f3e3578","03c5fc675733b417d9af5e071de3aba38ae7f09fa5781cbd0133ff9d4e234e36","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":"The app is practical because everything is accessible at any time","rating":3,"review_date":"2025-03-26","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.