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 a good product”

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 2543383844

Proof data

Record hash (SHA-256)

ffcee3e306eb1cf30a65829f81cf0b78477c4807de5e9eb6deee1afdae3445c0

Signature (Ed25519, base64)

P3Qq88//wXV4+LWnO15WmjUxHqnSRWmk3JHVW86ncZwrJQ0BPbiHfJmM4wSGNAlViNHmmmkJlHElDBd9mjwuBw==

Merkle root

7252afe559009950531df937e7edc9bd1c57cf28a24ed7f6c6613b65f459eae4

Merkle path

["ffce5bc06f074edc0197313fe2ab9d48dc48dbfdd88511c3439f73f22cea0513","c70e7758637d165f042b8c68f7b2f65f5873f18a477cd6aa96503ba2de0f14c3","5165674719da1ae4dbd26ad4949ba1a6b6fefc13348d2ac28048267efafb8f22","64e81e8dc10a1cfae336ffc103ed8cc44f11afa28bbb5b26501d876d3de1b97c","4c49e28fd9cbc98f7a81746cfdf92e0bf321ad6cf1ea1149c2540ef532650308","7d296ce3b12ea933494e50444e9e9cac7f3621b9cf3ab07454ce9cd86889b8b8","86d9a991fef719da28fc3ff7bf129744ba55d54224bd52edc6b3260e77750642","9d6c43eff830eb4a55e28f4f12e0f516d883d1f6cc63083ece29eae1db41a259","cc16e5787a9e78c1daa6e0adfdfa8f418aaba2780f17970e3c493bcd54d07beb","0cb2be899eb0e87e0c84c8010f32540c0ff4f02ee38f8970424d4e3f7d0d393c","e3ea462a17033cf2b2bb196bc5b07383fce456bc3220c1b5de266e7e78fd5dc1"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543383844 · entry 108e9186e8c5677a6025…

Expected log hash

65212d488cd7bdd0d67aebdd70bfc57f4b622fa08b8179427635d69eb7ec385b 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":"v1787285599851","kind":"published-quote","locale":"de","page":"brand:pdfgear","quote":"not a good product","rating":1,"review_date":"2026-08-11","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a7aeb9becf86989f288e46d","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 (7252afe55900…), 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.