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.

“It's worth every cent!”

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 3163352270

Proof data

Record hash (SHA-256)

0a32d872a568a0498b3ddd31be19f34b0e300b26d2f8036086d02f3731c1d345

Signature (Ed25519, base64)

2Fq3B5NrPggOa5Uz+09fnKND9qD0hsXt66TCStQgjqtvg3rHSzyvdKg525LcLbIpMRbPY2Xi94bWo/EAhqRpDg==

Merkle root

784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8

Merkle path

["0a2afb57e0df727c298f4b08269c91f84189c86740538cf7949282236a7cd1d4","dbebd708fd57d65601b0b1ab61f9e61a8264e2f1c79ba6bd409268fb9371ba53","8da21fcc2bc2aea9b2137da7e167763871fb5a241b228385262d8a14fea655ed","fa117623b5ce4016767584844599c02a4b46c5c5ba77e245d315425e9c9d762a","5a833886f9af87e7c8b4a4a3cae520b8c59da816e0dcf3366d9448746200f527","fdde8b33ee8c77603209e346758a8b1fea41cce9e81b0b90b040900d8677a706","d70d20fc31fa030cc65dba89a0a42480ad7f5406305d7c07bb23c0e93e0bb148","e7f14a4fc15f2f284debdbed2149c352a9f41527e597bfb2cb0648854ee33a68","be238a8d5bdbc00138e989cfa51464d3f76541a7c0f91c7ad0ae71d52573cb5e","54446f07c4ab303115c023972d8ae2c4584483caac109ce24d93fb0a4da3964e","b6dfd79a2c1d2a6c79a9e35caacba7bda42383d9f766320084882d228befed34","c72ebe563668e58eb29ee8ae3c5ee657adf2e41ca1680bda1301b8bc24ffd5cd","b2e795b1a28ca13f7663ed8f62127f0cc32efbf6296671f3d7800b760642c1e7","7c65cdc9460755a327943aea2ce97e2f5c6080d778d9434fe2dafbfbc1e3b04c","5fa09e3847513934bffaf71960ac2a100e20422698698ab1e19a4fe8ac133514"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3163352270 · entry 108e9186e8c5677ad020…

Expected log hash

a3ae0badac804d14d314abd0e71726d06a96c43a3840dc1d63acded9268c461e 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":"v1791543790412","kind":"published-quote","locale":"en","page":"brand:sevdesk","quote":"It's worth every cent!","rating":5,"review_date":"2025-09-18","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id731738076?see-all=reviews","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 (784ff8fc3c42…), 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.