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.

“Have not been able to use the services I paid for since purchasing four months ago.”

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 2621233673

Proof data

Record hash (SHA-256)

33f0e8d3024a02f2a02f7afd42a30d319430c688fde2d33b555684932af92602

Signature (Ed25519, base64)

4GOxm+HwahX/fASZdnyqFZx8+RScTHrdzsm+khfQ0+jV1pcVOtiJ9KfWakS/P2JO7Sxln2bVGuSrdZmIvO+kBg==

Merkle root

3e5b84dbb37ce6f75730ed2b32f91cd71f3a65addfb4db0a36bb6e93c637284a

Merkle path

["33ec0e30d39acd7dc3e68fb8d61a08370112590b89fd26f7f5bb4daea27f5f09","f97d6fb31ad9161532b89060bc0a3750ac0285e223caab7a7029a8756e8723a0","d29680353f1d643b04e9d0082cd0ae811c96fcdc17486490fe4dc35364737ea4","e6f4519048aadc88c05082190fef4b016ecce7cb5e4a5f3e5c96d7ff4d49416f","8be043e0b151556fb547f8811e795038388781290a69415f5b1fc950c6cb546a","572809980876ab9db6fb2d69e10169865f0b3da143a6fcb346a5c1f2edc1df18","971c8e5fb527c6d727c2b83ecdeb9b0bff8e1ea4d8be5c55823af59139a7a711","f2ee517d831feb31065057aab1e57c7fda92d767c5c3fc6394c329513e176320","dbecb73eabc9e49ab910421725cb8f7fbb3df4663bf668d69f2a9965200d6268","953b6937577363863ec9f8a92b4fcb1386edbbb4949d0becda0072491b14cac7","e731f0274f7f62b7adee6726a8338629af17b26cccbb9ca3c58a3980a5d12f29","7c465479a2278b4485627f3ef83cb478fbf5c6a34150b8adafc555a59e50aa41","aa75b64a4c2e7b83fd9fca0a24dd7140c70ee603fa9b3dc4652b777a9bd0add6","4b83a60597c484d00737793c9d1e20749c33d1394631936e64d7dcd8530ecde9","359169a64f9c96ceed911524de6d7935fe237a0309f08d7968d6105d6218494f"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621233673 · entry 108e9186e8c5677aab9d…

Expected log hash

8f69f81c385ed6162582e2743ec87609f0e5a311201997ab1f656c8ded6f904e 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":"v1787884205203","kind":"published-quote","locale":"de","page":"brand:nitro","quote":"Have not been able to use the services I paid for since purchasing four months ago.","rating":1,"review_date":"2026-08-20","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a872b2a89e6b913053cc641","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 (3e5b84dbb37c…), 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.