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.

“Protonmail est un service ou une plateforme assez médiocre.”

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 2683647879

Proof data

Record hash (SHA-256)

078c670c2455323109ec6a36ed8be044fec29e533deb3b9b684ffdc2fedebcf5

Signature (Ed25519, base64)

LdivRb0JtPiH2ib1Rt4kASUtzh7wMq1Esaqp6PUWt5EODoxeB5eHlURyA2PCwNDIDJ+zhIMNpcGbhP0qsKlcDQ==

Merkle root

2e3d871c1322192f29eecddde09b1d60f3198d79e780fa1195a664b4bd06a864

Merkle path

["078c0bb98ebd0c7f83ae6c43182d95ad430779312ef11cdba86845697e12c947","b38ffc2de1738e285753a3e5ccaa46e88a0ca4f342f9b219f273feeded3c140c","d30e3e32b9c71a76bd203505f73d897836653607ad28d10cc7b802fcde7c1d9c","b452e2149f347bc7430e31cb185b8f58a6554bf4a361bfa1b754ca83dab1ee85","7d89d3efac34e3ee2d929599c2c88c3897b78db3b59e782f9b17f110234a8474","9a04a259608a8bdff266a829d584cae630ea83fc9d9ff1540fc14001ad055bf5","1f0837e43c747396646747514febc38c3d80691a9598d4337bbb49e9e850395d","3952bda348ef1df434d817a9e94274c4996c26a3531b6af61f9206940d0d51a7","4a4229ecb9cdd1d79324541bf88f5516b401de2300b0545a589b305b3e94d39b","69809b58deb29acb3bfa81cbefe20114934a9eaab74bdbbb0c33a37543b819a7","8de13ce033734032633729738c3f45000a50d2fbb1cb6a3cf8b071323d95c8d0","0a3d33fc893d1918590ed750d53fc85f13e25e4f6ff7a207d21b4e073de50d53","2d5b9611d8c1e5387c2a259b0d33678f993a76db53de4243f9d133a0209868ec","628ede9e9b0730d1cc332c261be38ff7c8dd0481f36e9cb85c838852e27c80d4","8951511b8bccb72998a9f731e365024a5c886ecac866e59c397ec696591e8130"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2683647879 · entry 108e9186e8c5677a3d9c…

Expected log hash

9b4e6e5ed792dc8e5468e146cdb00002a33cda5d0fe16d325e3fdc5cc54bfd3d 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":"v1788327458165","kind":"published-quote","locale":"fr","page":"product:proton/proton-mail/fr","quote":"Protonmail est un service ou une plateforme assez médiocre.","rating":1,"review_date":"2026-08-10","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a79fdb35d21d3393f683027","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 (2e3d871c1322…), 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.