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 opened the account but was advised the book was not available.”

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 2544092674

Proof data

Record hash (SHA-256)

efa086ad1bae635526c6d239b371bea7cad52ac1b01ba6aa111cf2db61b07152

Signature (Ed25519, base64)

NJnCTFo364X7RGkRB+W0LnffWkubRBGQCMGoAg4lmNWXCbwCVN6lZMkmKnwG1FxLTDwpqbAnbm1O+UFiR1BMCg==

Merkle root

fc0474f2ab9253f8c52a81a0b2f1ae382f5f022f9b54f4e3fe06eadaf19fcf31

Merkle path

["ef9f0ef6e0b9115057b72afe8769974d01325a7a5650c400cbc77d3d622e5a27","7cf31f2c9f805cebe561dba1401bf217a3a94f406f5aa154b4a3dab8d45ad8c3","b81a3b5a957d33e2ce0883fe43e90a3ece7afb79d1916f73c5b1ff664735e36a","2d0f9bcc40b62eedadc7ddc47252bbaaaf0a8500b99e2a480bdcb06b10ef270d","a8a2e84d6ae69ea6dd6a205063d71ab6cae90e620933fcd85e1cc52b85124fe6","1aff8d09654f1c7a412562cb1e3672fc051e4f202c45a5d45d5ff038922efdfc","4987363e0cdc07824d25f045e4cb3914a6df189d1c9e79c10995eeef4393c389","c4ccc5d4605dab6b30c9a3a2dfa3267c1f3d48bcd9c472b25e78e2786fed51b2","99deb3e78885143cdc2cce4b67cf3ae42acfd953a82727e98ce4dd53629435fe","7680336a354c46436987148d5b72015ad83ae2b3194cab497cf0879e2e420c5b","6247fa0d7a228bbd0b7164b183c3e3ac1ace245309538b24fafa883635f2aa7b","20e74c10e59b1e33bd4f3bae28d68f933c4a79df5f30de11634284914c378e3a","0e4031829bdeb15da4a11455ddedf9947e821ef098e4194f6cc46ba900c1202a","b3b6fd3f87905e1812547bf59009605afa62c4124a0a91cd029c06d177d44441"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2544092674 · entry 108e9186e8c5677a1b30…

Expected log hash

e3ca1014bd6a1a766a29da72cd2b9f7f9c6c416fe6af720fafa94eca555dc171 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":"v1787289954326","kind":"published-quote","locale":"de","page":"brand:yumpu","quote":"I opened the account but was advised the book was not available.","rating":1,"review_date":"2026-05-16","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a0889904980510cd85f7cd2","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 (fc0474f2ab92…), 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.