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.

“I have been using this program for several years”

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 3288590621

Proof data

Record hash (SHA-256)

13190c6eb34d22ad4755863ca67ae6bcc8f2fd44f748c0d43b72f89961e745ca

Signature (Ed25519, base64)

3mxorCxCXp0SEiPNNNT1jsmJAsowOfITHP3ACQo7sM4Rk6atd+6IjaH3QDiGqsBmtqeGcMrjrJYYN+NODu3TCQ==

Merkle root

5ee295eff08f25e1ca2fd839bd395df8ebef79af0e57c3d4ee8d263342a19422

Merkle path

["130c59ee30e36a850ffa94133042cc7d4863b59b9457a3da61a4039bcfad3e88","7c1bd3853c0f69ff3ad60bbbd65a977d058db10b42260a6e5d8fa2a033d20419","529f11de71d9422406ee8069bea4931a5ab4585066a016f05452c83019f09653","48873701055b76f16da0fa92762a8100ae1d0699e4eeac4f7a32acbf34ab2216","a5ae90a251cacf61e346f26ee681d49b8d63da1f48a559a886fa19909788d343","54faaf27aaecc5a656589903025b6faa0780d57cc5cc8c6efa9d08ab1c20f53c","817fa25d1fd665baed4b25bf46e5e46e078fdaeee1b98027db654b9160a51a94","e14f755b4e3f32d3e6be1334505f067d143fde1a6025cb4a9a50ff6a1474572f","c73bcd479a4f9167d65330daba3c7caccc5a12b624bad5c7e3319b49a3726eee","bf492eee00eb1d445a66a0e36639cb8a6263da36654aaead14f495ab12358447","6db62b59a587d4c7742bf7ac4dd122015b4901d702423e724855870b46081c4c","41ff37d2ba7c20d129650a01caa12fd58478b2ba725f6a1900a5e8a6edde7742","149a88e487e0a55b368195abac6188b4f1a5ff2534a675089a6bffcc120ce8bc"]

Anchored

2026-10-17

Public log entry

search.sigstore.dev, log index 3288590621 · entry 108e9186e8c5677a25c9…

Expected log hash

74cd7239ea435495013841baa58ae65725dc6474b09f06da03b154f0c5d58357 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":"v1792206865504","kind":"published-quote","locale":"en","page":"brand:nordvpn","quote":"I have been using this program for several years","rating":5,"review_date":"2026-08-24","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a8c7b08b66def687c54f8f9","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 (5ee295eff08f…), 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.