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.

“No other email provider has such a strong focus on ethics and privacy.”

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 2789279696

Proof data

Record hash (SHA-256)

5f878585a096c65ff6f116868321b5b8f0642065467b530cc0c5c02b2c0e7648

Signature (Ed25519, base64)

sUsDuyd6BeDA0vLRid4Gh+tZpfJejmP6b+3hVIIqsVtRvMdRmrFXsuUeZsv461sqyFOsXsvN2CWwCHeP4lPwCw==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["5f89552056776da40c8df2e6ab24906b78c3a4af83760f961458452a93a9cada","c1ff6d923e4bc5c2373da1e6b9ca09cf1c266a4067dbb3351468944ce8a938de","70c4bfc0fb46a39e21aaa1800997855642b981f5217ce1c90d451ce19bf243bc","84901dcdd8c2cb65299be4461a68985ccaaadeee76854ae3ed56b5c8316c3543","5a13dd4381a90d63b3aa4534c9f23da50167c4a95d4da00ea0d74c4c68b05c82","d520137e703d274703e545ee88db921fe990a5f883fb3f8a5e36f338c7d1c2be","8a3e995a779baee8b15489ee964b57fac9d50742bd220f923fc7104cbd48a001","8ca394ca3f678ca4354be616a6a916f0a3aad5102ad43b9651a6e5d748983a52","8595ba8fc169805f12f53c832f1ec9de3374fd0ddb0d3ce4e30d8331541d4878","4c2af23fb12c5d6a450127251aa43eca70b40c3d6f6293167efb30c5276a9227","2196f217748a850eaa5fabc558b411155d5e5a90e74d5991bb7a1bd20efe4d14","36283db7bcf119c11be277705ea4507f983056a8ea68a309c763a3cc8b414991","66d13e8b5300f6cf7ae49f9f9692863758845bb98773f7a2bbb28032eed5ad1c","90e3c3ed08ff9f4dee6683cf95bfff311f4715cac07e97ca75ea5b9bcf13efe4","01242865574478f13dcf9d888236d7a907264abdb87f360db7db06de0945075a"]

Anchored

2026-09-11

Public log entry

search.sigstore.dev, log index 2789279696 · entry 108e9186e8c5677a3885…

Expected log hash

05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921c 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":"v1789017464005","kind":"published-quote","locale":"en","page":"theme:tuta/price/en","quote":"No other email provider has such a strong focus on ethics and privacy.","rating":5,"review_date":"2026-08-21","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a8839fa8d75f3a53bdf6e71","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 (97eb1062a862…), 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.