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.

“All Proton services and apps are very user friendly already with "free" plan.”

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 3637399944

Proof data

Record hash (SHA-256)

05748752f3fe6fa772450d15251248e9875f958109f0bc59576a29117c8cd33c

Signature (Ed25519, base64)

BXnkxU1tnKYQp6HvZolk3K4VvzE43P+aXprqHtqCoCw1AY66t4uEoSj1MlDn3KziPArqZviUkq6S6RXQkNuzBQ==

Merkle root

7dc417186ff758c181cdbe9905e2a9f7c2944eb88a41e7dbd52a48ac04321d3c

Merkle path

["056f830dc05d0295760f59806e359dfa83382ecf3fa52d1c2aad624e4f27b80a","0f8ab3ecfad21516034142b53cc3bf8f21e994461e7bb62a11678412fa307a8a","82bb6e28fe03ceeffd4b53bd1a3a1e8bcaa06efd35ee471da0e0bbc4c6bcdbda","f891a791999bf6a56c37b350283028e4f7c50bbbbf509c0711dad49afa7537dc","7523e4bb587e2bf19eed22607c3ac63457ef3a93805ac0d68edd3a5e01ca8e99","6085f00f589ecf276b4292ed7be19ecde2da306e6c1c730828dea62f5515afe7","e32241d4721502e1190f93225f084fb18c54c118e5056a0a82e16364fc6ef264","30de274da031a575aa7ae0dda786c1e8f90438385b31950cdbcfec44d32a150e","bbd1835f89d39cfd67dd7d854e48fff3cddaae5be09df918d5d131d990d3d796","c015003180ba5cb15302d669fc758ce30bfdaad21c37c05eaf61ddfb5e928eb7","416ac72626963bbb3122bf665109ec7d944d4d5c17f5d6ba77ad19d4c322fe84","c55a157ba05a1522cdf00c427814e744bb2583aace026375d741f884a6dc41ca","c2630b6b9ca1d11e16cb99a494743682b41d3604aa81f0e537e045d0ceb25c0e"]

Anchored

2026-11-02

Public log entry

search.sigstore.dev, log index 3637399944 · entry 108e9186e8c5677ab939…

Expected log hash

17b34089c9aa8091fa75e421b51f027dc37b50e8cb79082ca972af63c8cadbbe 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":"v1793587696188","kind":"published-quote","locale":"en","page":"brand:proton","quote":"All Proton services and apps are very user friendly already with \"free\" plan.","rating":5,"review_date":"2026-03-12","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/69b317469b8ca7002e112eac","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 (7dc417186ff7…), 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.