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.

“He explained step by step what I needed to do.”

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 2543266411

Proof data

Record hash (SHA-256)

3aab2524bf9f86acc3c762fd01292764cda08062de5c282c1d1779c7862ca2a5

Signature (Ed25519, base64)

v+1tvP9VfVYivn4KwXmA5n0WSj1DH6r/DV6UjHzbHYaODVA75/HPRPBcL5ypIOlVK5fnZW+TxvogDY9bZGCyBA==

Merkle root

8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c

Merkle path

["3aa9e22f8b0f2baf3362a75f69f18afdb9251de52bda6d7641ddee9cb1d6ac30","05e47dbdf1216e23004762caf33a29732489f60c07c14f28f94794ddaba036fc","3fea9f702ef0a4e389952005e5f116c91c53063b514bdce55fc2808c7b937e43","49774acbb8a2d113ed83121a09b047c4b8df63bccb94ba8dd817ff29f5256baf","32dd6d1546eaade6a4597c13d8b9e2023c53dbd0e80c1ec009225eaa07dbaa49","3b5c3c031bb202e69abffbdac74de43d15a333f3bf56b801eb9a1d78c006607c","a73a36eb1dccd28df24fe600980be2da2478648fa87de9f0d634f8148e1ac7b9","da17b4995dd52f7ac4b478c3dd0a79588ce393d1429ffa41b21b72c454aa606b","0a43eef4cb4cf23b6403de3ef3efae024b85962eb895ccee657f4990db8a078e","4e9c0198a1f08e50cb1f8df853ad93735638334dd0efa71278e1cbdbd1db9e1a","7cf608fdcf7f2bf612f74db8f4447b05647af97c12ae3704b0b1f0b6ebfcdd94","802f0036af5e2600f08e1b83e01ed5dacd11efeda6df4562a01b59cb89fe34c3","fc2731d864612e3e44a82c332896cd2770948167888770abd053f05a4950b01b","c3da944168348f2737a3a033a43606f7965e05f20058b59547dacbfe770ef5ce","e9f7ba9964da1314f660fb2f84a68d574ffe9983879b5b54001a09ca5cb5f33e"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…

Expected log hash

443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"de","page":"brand:signnow","quote":"He explained step by step what I needed to do.","rating":5,"review_date":"2026-07-16","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a5863415ff0aa441e185d27","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 (8ffad6e97d14…), 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.