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.

“not happy about the dodgy price increases they seem to come up with each year after initial enrolment”

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 3139760477

Proof data

Record hash (SHA-256)

0f7abff40575f755e59b95393a30a5bb72687d29aaff85d512e4251d22335119

Signature (Ed25519, base64)

/2Ka1sef81D+tf2hKCgEv4PkX50VOqbNhgan9NT7t6D1TvR7zFlxOpga9F4iYL+URjr3VFSIWxtclDXJDAu3AA==

Merkle root

49133e6803d24035baa1544a5c730db93dbaf832df48f680ca855944337404a2

Merkle path

["0f786ce0a0249cf4b580640cfb97c7591e5c5b8bc6f3e7301de459cd9402d40a","fa58440376cd9677016cd6f170b4e843a82acde943fd1010f1134460a1d37db9","13ba8c653cee96fea820b642f7ebb24f841d2c2116da005d58897824a81326f8","046a633568cbaa04636c5de827b1bfc8f6fc9ec10c38f273bf398e31565f2eca","b87edf41e7ba48bfa08a46bb2a58a1763cfd0f4b3dd61ba57da954a8c313e850","7bde682a0dc2d5801bd61feb07cd3b6d31d7de675c458b428c473b69d05ebb63","e16b5b2f88a63e69a274b2f40bc0e83cae0571418bbbc2ce3fbf7d9fd2d7307f","a81c83cc23910be50249b8ffc663003e47588d845edde10fba23960fb03d3030","663295ca57da9f10eedfc1993673bb1393096c280758e1bcb52f20f3fa6a9f06","f3e28120b62274a21c2155c45c46efcf8c148418c375d300e9ab3189478fba80","f43a48814519a5e407bc171cac612c59b3046f06facc1e52316ed32eb782a411","1cacba8ded6d3fe4021b99b9ea0c9858548477a47eb1dfa6995591887eea7442","da05ecf7377d5697c026f830a74de1a09359f7b60612fb722c789caa15cbbf29","90889d6ebe241f2d2f9092870d002ba795f7d27137f7582a09b4369ab1517327","d81f506ca96dea712a8b56759200b270fc625cf496d323ded3475eaafeb2d916"]

Anchored

2026-10-08

Public log entry

search.sigstore.dev, log index 3139760477 · entry 108e9186e8c5677ac88a…

Expected log hash

d54b6e5e20903e9be29e6a5973227ee9b3dbe61bdc0fa6481a5788472cd5976c 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":"v1791428432986","kind":"published-quote","locale":"en","page":"brand:nordvpn","quote":"not happy about the dodgy price increases they seem to come up with each year after initial enrolment","rating":4,"review_date":"2026-09-01","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a9600d4e86a8b378626f67c","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 (49133e6803d2…), 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.