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.

“J'ai contacté le service client de Proton et expliqué la situation.”

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 2542751096

Proof data

Record hash (SHA-256)

0cb64764015609a55d1d1e72ec44059bd4d955242155f8a81faed92cd2b81648

Signature (Ed25519, base64)

Zs3635u7f5zZY13BMFUXIFlakMOM4igxTu2qf9ENaBACO/nteyHqRSexGINYsBg7QZcCs4hm2Xa6GgD3GCAXDQ==

Merkle root

cc9af896bdf0beb88857e1dcc841c404ccd4c59cbcb6932f17077fc8aa87fc23

Merkle path

["0caf7e259dd368783bb27eb2b5512f3561097b07d2ff11db12e908ea62943e5c","bfa53dfefa95fde7edb2bab163a4ff34c9ab0698bff285bc1cd0dcbb4445d1ac","a50166415c132a3736ccf146b859ac322b0f18ea14f0942040b31d0e916bdc45","e57d196ed9e75f429da59ac26a845dda8d2758febef330222658f104bb5ab218","63e1788471db7d5e73e46155686555e351e3dd1da33e0e3f82bade029677083f","fedbd82400c420e7817d2a00a2a02a4de65a4cf909bb8c53c4dc31046557f249","0246fc22746760124c11b5cd75d8b166ab72ad6ff32281141ea5f1c8420bc628","128f0e2da60abfe4a99e62a5db91f12e1660ba9897a2532733e05dabb49e302d","0ea4803f7728f53a983fb67ec55c7588364acaf0e3c637135c2ae365a1e40162","3031aafa0e6c082e413fe6ed9bc80f2cc95191b3ab0073c2af3fa222b70647cf","fecc5e9e30221291003d1a993aa8910b3659fa173cafcfbd67671f76ab66d39d","1c2809e47d2975b766ef995b7d10124aac0516db86022be7da7348399138c170","4372dc9da9497fee58c424202bb40227ff1140a098c2b49beac2f4c4ae9a0331","0f351cde6b1d9915cc0e417c0e2f1f0e3b04741e1975a4ad546a8eefeb399e09","7e6c62c2991c7cac05134c9f9e2ab89c75f6106f706f524eb2e9fa9f554216f5"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2542751096 · entry 108e9186e8c5677aaab3…

Expected log hash

8251ea19feed4cbe325f48ba93f0e47294878633f5d43178e4a3a023547e795b 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":"v1787281943761","kind":"published-quote","locale":"fr","page":"theme:proton/billing/fr","quote":"J'ai contacté le service client de Proton et expliqué la situation.","rating":1,"review_date":"2026-08-07","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a7636cd366de4153942bd88","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 (cc9af896bdf0…), 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.