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.

“It is the best vpn i ever used fast and secure”

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 3273053873

Proof data

Record hash (SHA-256)

0da04d27df47839ae6a9a0a60343de753867c971b5728f3f81f9af18b2466f7c

Signature (Ed25519, base64)

Maofyv/oik+6jfCS4/UvH+/0mwxdUYbahr14mRXhXzVO83IALdDXHoiefMQfSfKbV0/yRyFt8lfDL4SK/NWQBQ==

Merkle root

6953a5ba9bd00082fa1986982a5979aa7ad5b4654ec368f8d247f13243e4e4b8

Merkle path

["0d84103b4bcf9e7b2290ab1c2c5a3fa6969b3d755e1ceff6fca1962440eec960","dfad0c54ea2a2cbb345eb21f77f257f5924105bb0f2d6b58f43f2e29dcb37b73","35760cd11e2609fc015f1852cd1e33882032cd3e97efa058c1ae615d2b3b2445","443e6e117c746c05a09cd002b7e430f96f99740e9cccb98c3c03ddb63e6fea90","16de78002e7e5689b52b408293c5de66ee06e287033d270c3c95d264b5674b4a","f860e8b08c8d8d32aec86745a24fbd67eb10037989a04837a84e97ea569c5265","25f21274ad7e1bf23df7384bec97418b75a4b49f393459e37758503ca216ff23","8931dee43b3657bafd6c9d0f63c64cddccbad7f6310ce397c4d2bde8ec2ff005","5928143cd6161f221442a9ecf836245498117026d03e6ee15862aa04d94b0df1","bbbcadfcd06e4b3ab60776fd225ed107ea0446ecff6c11e857a675acd0292062","482f20a9159a8e59a574c7964242764f64b58aeacd3ff1741a10c92a59ce4008","d42dc1b37546fc67d932c54c8efa2ed4184ceb43d115311d414f7b177c48c420","3d6624c631c3f201b337a52bc4f9494c99366c0aa74b4db152cef1b6807b4800","98a14e6f55278d0c3f64d31e6bb09545a033fdb7dd6455363be23426eb85b044"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3273053873 · entry 108e9186e8c5677adb5c…

Expected log hash

8e660c0f9c2f4acb2461077e20036379bc945573437a296969373758a8dbffb8 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":"v1792120102008","kind":"published-quote","locale":"en","page":"brand:expressvpn","quote":"It is the best vpn i ever used fast and secure","rating":5,"review_date":"2026-08-31","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a94d73b58be4c09760c960f","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 (6953a5ba9bd0…), 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.