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.

“C'est l'assurance qui compte !”
Google Play · 5/5 · 2026-09-11

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 3240911465

Proof data

Record hash (SHA-256): a9b39941074fb5db55960f7ca09f36f343e1272e706118d328f8d3042f01f42e
Signature (Ed25519, base64): 83FlWxO1EtDsdNDio/I1JsHriz+g72xpHE7kRsN52RA476zCqxYf+6Y/CxyjUtwYY+EZveAfa+cBw1NFC5vvBg==
Merkle root: 274a7762154bd166543ff3cdffd566852c7127b7d67c5c835965884725fa5b5a
Merkle path: ["a9b3e56acc2cff6f316708b454d77f1d47ea1583a08732f6911d6765167353cd","434016fb1d6e48e0d1b457e30e2592fd5c135bdf366c89cf8dfb15619d57c8f4","9e55277d1a04c3bc237b09c8079045e2f788088ea7d572ce396ae14f10249c15","8606c39134316a34157b0faee2107620354f1a568579e30fd55436a599026c96","6c24fe544fa4cf3971bd8c05638644b964b54e638f1f0e3bcd51a7c8d860e74f","0c38759145e0af8b298d738711c385aecbd288e4f0cd945e73ee1f97931ab411","8bbd4a51709c86c171574178266e29037f5c75fd5c4c945639851e7f22b6f7a9","7165e40c06f974a869e1dce85e997f9fda3ab4717502ccc56d246858e9c689ef","da1adca8da57354d3aadd0a393a4202fab2f704e6231b0c3efd14dbde733a9cc","4ce41b07fbc302d3ad17dea0d9859345f85000e05e762eacd4344ef02d6bcb0c","e00549c36de4462f9aff0272f74b3736e9c5371dd94ef789fd4700f952c569a7","32ce11cefbdc6a240522be2e63918e2719193cd3b02fc538326690ac121f1e11","dca98feb389b516875d6eec81e8d4822f177565c8dee578b10d1782753aebc98","29e5b66d9f235b4df92caf0fbc75cded7863ab76bbe1924bd45c3ed8fea27123"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240911465 · entry 108e9186e8c5677a3a8f…
Expected log hash: 75e63ac56a22d308ee68ec8d436777d2fa26c934f80384e53bcc94d01475e988 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":"v1791863907329","kind":"published-quote","locale":"fr","page":"brand:concordia","quote":"C'est l'assurance qui compte !","rating":5,"review_date":"2026-09-11","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 (274a7762154b…), 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.