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.

“est une très bonne application”
Google Play · 5/5 · 2026-08-26

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): ed3319567f25376fc12fbbd4b2ba84418ad1afd3d94724f2451227fdcd4c345f
Signature (Ed25519, base64): AuzvmlBc0KAxu+qvPiNMWtDjKfqibGq8X3NFJFiCEiEkaOreXQXK7sB8fRfi49JMD92E4WH4uTQmDi0G13GnDQ==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["ed357ce72e4ae53e77b7a9196ecbee97b5c43f8a40946b897da970cddfd55933","c75d83d00e6ddf8841e272fd4edb3d65f3a78635e355f5a2e3be3cd010c43848","a4ab832a2221acbdf5b0304853cb2031dddf8c7d6a7e5ac7f65192a0b385aa68","57b3696fdfc80ea1066aefce8ca88ccee6c0222afcb5497039f4eb32b7a5573f","0ada93c9a90f0686c698b05db79ef9e12d3c3451185d7310bd6cda61f35eb90b","bc7eaff0738cc599e69bde53fb926ab3451cc5cbf82ff7581abdc072e1185936","03e5b05dabcdefc81bda7a88f7404e34858787d0f0c597cb183b1c01dae60f9c","be3ffe0c9efbe274c917f278b113dd4bd5c872ace8aa14dc79ab2ad0cad8087d","89f96de914557acba977a672d7b7e1dfe70dab66295b5d0319aa6e237a068ac1","0d4e3a64b73f4ec4a16f91c21f23e86eefb07bfcbca9631a096a42c84e2ffa4b","8d86c589eb2eee8874e11ac8667476155b0a0d09f41ce045f571cfca33f7602d","adfb7af951ab6d82fe2ac7465e5f822234f3eb32c74ff914d3090db1700baa73","34bf35d805c4f7af315854dc10a7a10ae0ea054d46dee40b360c3f04f8b8e60c","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":"fr","page":"theme:concordia/quality/fr","quote":"est une très bonne application","rating":5,"review_date":"2026-08-26","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 (2f068f3de56b…), 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.