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.

“Trouble free usage for many 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 3178115911

Proof data

Record hash (SHA-256)

8ad78f397ff9e51dc4304f92a20de0b68bebba6687f3f179bc6c9061b4ff2713

Signature (Ed25519, base64)

7iYCBzgpmMJpedOPAijMJYSwsmaZMvfg1UZ6EciBfxP9qKVdUXpinDzMVUNFlsaDzsMbfCeI9ObDc1E3MgawCg==

Merkle root

afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b

Merkle path

["8acbe1227cf637f1ed30e3988f8683de3040b34ad10b29fcbd8f9e849a00fc7a","2a74e0ce99782ed3586b39d2654cab941cda46e3ccef569222b06ca6ce7bf338","74e87f8276ec8aa35bdd44aa9082051244d4a1655ff4bdf4c35de999258ac7fd","26241b9335c55c403334d897414ec932e0ac2c0681cbfc7ab71e1c79872bde95","da914c0a153b857c1768cd0a4686bcbcae171d1608d748b80c03328e659159ce","ea639dbbaa01d7e704beaa5cf9edb93af856da1bc44f357f5a281791b9f64d22","07361a2a3917eb06e2ad08f017c216d8553a317e4cdb88fc0197678ee612083f","3559a4f3b7e664af8d6c42979807e7ff2a775d151a6ca851274fcd2c1a10e4df","1f9d8bb794c50cea9e0b6be9b551de4277bd8a1029071747f427eab39fd5b1b2","14d2bfc792877d2bbfebe872ad2c5c2249977562d9246d65a309cf57c7723d3a","0bbd1800794d9689ed8ba5cb1c1c72324d6bc06a38edf0ddd768870022d014f1","ab86bf85c43ceccd06fbc7d157d8f814174f1a7244638338c5afbe05630f687d","ed385a47750dab9ec64ed7263ee30fb072849b32983406b7ab0d0c13d1cf4dcd","5c5f731502958b375bc1d9a553448dbbddc644c5b57d6bfb1c2392c3f578da0d","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…

Expected log hash

a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","kind":"published-quote","locale":"en","page":"brand:fastmail","quote":"Trouble free usage for many years.","rating":5,"review_date":"2026-09-04","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a9a34dcfc9df6169826eea3","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 (afb9ffbb4b4e…), 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.