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 essayé d'envoyer un e-mail au support Proton et j'ai reçu une erreur de destinataire invalide !”

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)

5aa4b6778a15680f9e4cf868e4e2aa0284661ec148a44c987c42849d5c0f1bed

Signature (Ed25519, base64)

bfQ3VwzreiAljB2LWgNr6e/Db3vXEtzPlHmGhRsF862pRmX6lYZIb38W40nTRUh0k6FPqlEejQE1bjxLiOgbAQ==

Merkle root

cc9af896bdf0beb88857e1dcc841c404ccd4c59cbcb6932f17077fc8aa87fc23

Merkle path

["5a9e2e3e90f1558cd2f07375931cc047920dbecf7d463c1d17128cc20947886d","f087b2ac2eb0070fa8eb94677e42da3b36238644735664051413b355068eac6b","b8dc13587aee27bc7946b953a1132c66bf53a20f2e89d42c8dba8d638ce46292","f6b6a41c5ac5c87e843c067d1c5219dff084ef78c63bb63fb232603252c9042c","7754cf9c4c3870959ec87361317256fc700df77eddf29180d63d049ef2cb5288","d4b1906acb843d50d3730c38250a9326f3bd7525094a70c8071b2d2b3d530fa6","277040bb326ad72784a33d409176bdea20c689d3d566550c1967bed9b11af91c","06af330c859a899f7e56def9a4e40ffd67fece400ce1abf06389ac6f48aeea06","83b425cb4db63f00f10393b9ff66f601f599f5534ac6fed463e976fecde54020","7880321a0f4b12929b343b36c4bfd9baec255de464d89f89eb33fbec48afb514","eda20f447ab5c82ce3264dbf88dd828d9a59dae75690f9cab651e285a1bde01f","a0b87a0bb877d575137947d14d0bd97ce13744bebb954d336cc7d30ab5c1486e","d2a0d95049b010a02dac5bc62f9c8cdbc0aab414d57731175348e6bac7bfc76e","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/communication/fr","quote":"J'ai essayé d'envoyer un e-mail au support Proton et j'ai reçu une erreur de destinataire invalide !","rating":1,"review_date":"2026-07-27","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a6771cba00b98fe70dbd64c","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.