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.

“Das Geld ist gut angelegt.”

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 3029042635

Proof data

Record hash (SHA-256)

3db2bacb220b41065477ba1bc90ec0ab48e4873be34a23880916f1c9f96aa64b

Signature (Ed25519, base64)

FGA7yLx1TcVJeAoZiw1NaFXXHN47oxwogjoglE0jUIOw5sehV6hhni95nNX+RMapHnVTUVJDYXQfA1pbGm0wAA==

Merkle root

c9e6077a1bda893f1455402f424b1d526c8cf2f47d428b611fd8d7fd8b45f80d

Merkle path

["3db13f8720ce067ac509196b86cf8bd0627e082959c02d1e9974eaba729b9a76","bb9c020ad8945bf1b777c10dba10063fe321990a93482076902dcd35b3023fe9","4c464237efd2ca32e0be9ae483a807406816a4533d69bfe6e07abc384d988262","3dd0ac3f0b2e17aa16ae8cbf5cfa2bce71e6a490b14c7f4ac2b6ebdb1b15b333","af2edf562c1426eba0a75b6eb2650bd405d9d482f486d23848859c26f50c6d78","89b12da35c9dd83b6a32d7761925b6ecdd532ecc6eac34502e97a4dbdb248b26","5df4b60cd27425b51d553860b5d309f22bbdc0cf1147a32f1f066a8981b15b33","8bd98b7532968a543334809716c9f56a6d690d5f3058996f597119ac4c90f7d2","b6f06b6eae6c91f176a9903fdb7e119bb6ebc0849e8470ce81a06f445603c06b","c0fdc17392205a6e9c136b14c7ba5e2bf6583145b0cd1b76dcb7d23c859ac51e","2f584a50f21172862bf86939cf321b4d6eda79c5cccf4668135a855fb381928d","701bc567aff0b8c964d39edf6b2002f413859eea098c827f1c1e5f2e677be27c","13426c9a5d28f51d7e7b6df8098d9a77a705d964d306f1e8144eb70897bb0dfe","28f339129afb618d498bd82eae2b1e12eeaec1028ad92bd9db24bb82ce8352e8","5322c97ccb72daa49a07d25ff9fa0bd42fe425058f30f6fb1f272a0b90ad3b60"]

Anchored

2026-10-01

Public log entry

search.sigstore.dev, log index 3029042635 · entry 108e9186e8c5677a4403…

Expected log hash

38d9b7e95b1b3c998a8128983d818774fe7ee047adb6f05ee608495c2d7aa418 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":"v1790741815621","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Das Geld ist gut angelegt.","rating":5,"review_date":"2026-09-20","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6aafac402673e2ab0c6863c9","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 (c9e6077a1bda…), 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.