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.

“pratique et simple à utiliser”
Google Play · 5/5 · 2026-09-27

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 3239939960

Proof data

Record hash (SHA-256): 5ad900ee1f8d5fd9a07157478e509da2db5c4cacb84b9352875854e0e7faba93
Signature (Ed25519, base64): ZSn26VJZW26gcojqYNROXrfpPww/0aZ+SBUccNuHHl1d2Pv+TX8TnLZV2CEoZLxDfzdGPlOeG3GKC8SyXbT1DA==
Merkle root: 954962254ff2eae9503796c02bd08deefa3a5722e4ac0b3981007e2b9ddd84c7
Merkle path: ["5ad61c10c1d56261deed18a7d74662bc7e4358739649146c022edb2cefae9b5c","b5d623ec2f1bf944b8e125668b43ee00bb7a4271fe93bd99da9715d8966bac68","c37e5b95fd48d96ddd3cfd10439decdd86c4ceba95e3e036cc7b09d119b35cd4","6d4ea084a79f594db877883e88bb98e3d0d1ea6155b408d0a9dc544c24d446fa","a65402e59836c63d131797b22dcb714bb5f0bce9c8450404270abf94f609967b","2843d7398bba84d93c0bcae5f295441dc2180177acf856d34d7da7ec67607263","139a7b506e206981e2c6677de898847a466d7db8deb40d69d57a9b083849a67f","cd002a6bb0c957605442f55918c2b308096c1acbb6f1cc6fc7d7086d3a86c39c","228a08aa722907e509e689569feb629d355fdd45e26e0268100cf147b2f732be","6ad811c95858b21afc6ffb6e76758cb4dbd2a8d6eab95c331782661485e6f066","68558564964f141f402bbc324021f18186f42d38d949568d09d35b967205234d","a9ac31d0a9526a98b5e540a3018333dc81ba23cdc26f9a2237a1202670254f00","b8cdc2ac259b99ee128446ac841a028c8f1c17c2b2a6f3f4273d47d82eeb36d0","e7bbbee54f729cc449b73bfdd383c96b7b180e618c270037b5697f1fcc75f254"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3239939960 · entry 108e9186e8c5677a0082…
Expected log hash: 28fd9464b857a07e61931e67235e692cb8af33d7541a60ca163756a54a64e9c2 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":"v1791859824762","kind":"published-quote","locale":"fr","page":"brand:concordia","quote":"pratique et simple à utiliser","rating":5,"review_date":"2026-09-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (954962254ff2…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.