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.

“hat meinen Beitrag ohne Vorwarnung von 7,99€ auf 18,99€ erhöht”

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 2525430207

Proof data

Record hash (SHA-256)

c0514986eda55aaccc0eb6400cf10b767e40a701f19029ed1b292bb181fc3b24

Signature (Ed25519, base64)

6O+lbYZe56KLb4zqJ6pzoMmvlPnWn/x4oj8DIf2eVNB4HvAoQJ6CV3mAINfR23zjuF2kkcmf0JnMIrC9z5D8BA==

Merkle root

689da4f5bb049dceb797a1ebd18ec1f343afdc6a2eec17587eed167cc7c21a02

Merkle path

["c04feb1f699ef8c7f85ad76b11a0e94d02dccc8dcb9a2628d09c2b63f256deb6","f45161aae007cc6241350f01f5f0b276b24a6ba939bc5133ba141e4f5edbe782","53f4476f85d99b6f9a544c5cc4a4fdba9f9723ea118931e439f4ad7cf824c509","3dcf1ac083bef6b91d65d05bb612e9a11cfbb8227a1185d71c50eb0a36f65032","4027dd80b3a10ba06d85d6ee4ef440619b4fa9c3675e2c4aea074939fc2f7a1d","a0027bb9188f6f29c047f3ec6282aa15ef857eae67f9bef008428cd0244e0481","72815930d3e696a4e315cc13d6c51969b8ace0f769ff49241be88aba3a9975c6","25672aa4704f12bbd1c8d0ad7f4d3ffa160750eb064617f6181fe88c18effcac","330043919c324acb99d52b88f19998467aa2fd15920279411cee9b36e3134270","aa09196df472f35117e398541e009912c2dc54f7d2ee92a970bbf605122889c2","cc6abdf33e624a83d901faa19984a16fdc203a3976ecb7d38387470adb3f9d4c","fe07f75a025d782a70378121d6f7eabffad8f16c6c2ff966f04bcb4435206bb1","cf5240297799cf83aac163f53f04275b611d759331e13e9af4b09fb2650058b9","cbe53573bc503d1fac8b66c37a5c149ad9dc05847ed30843f48702f08cb1f237"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2525430207 · entry 108e9186e8c5677abb21…

Expected log hash

68e6afcd6c232c11ffffa818a4cc0c5faf1a86dd24e2ab2a7811fa1f4f43bec8 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":"v1787196781193","kind":"published-quote","locale":"de","page":"theme:storytel/billing/de","quote":"hat meinen Beitrag ohne Vorwarnung von 7,99€ auf 18,99€ erhöht","rating":1,"review_date":"2025-06-07","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=grit.storytel.app","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 (689da4f5bb04…), 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.