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.

“Diese App ist einfach, nützlich und preiswert”

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 2515144749

Proof data

Record hash (SHA-256)

133b97c077944198a938c366b410b06e76a70ebec817a9c0c6fd4738edc2c5aa

Signature (Ed25519, base64)

0oGE5/m3mUQ2MZAiBqtY7v5GdWF8xL2H8jDvBdViwoemvd8dP3YW7BKgmW0xiqglQ5eHFU58I+UeNeFXuwsyDA==

Merkle root

8a6ad893af0f0bb6c448016a777af61f3f4935afd82df0db132e64f813535715

Merkle path

["1348f8e29eb4183e6a1bb8dc71ea2bb47cba738491e07b46c1c9eb8e5a72807b","7df54d44aff8e0a507ba9b8e59fcc7fea20cabd83e128309f6549a18f4e94a1a","845f583c997467e1cbac47b8179758ede4bd99aa1df266622a253da561f7d6a8","9903b783b118bcbe70b29b301cf9fb6fa65fb6b7ec5b5e5b57c8a50b5ccb7c84","2a2ddeb2e1bd64d288cd9231186de9c27c5fb4f9501e921e894cfd115f70cdf9","641318267b18e0d419d7c8f01fe2b3c970dbf469c7e4929edabfea987eb4141d","c9244634616c6a060da77c4985412013a9b6791babd2bf306845d3acc5a8d9b6","c02c171e96476bfba429e42e935eda14445e89a24f46d9979a104274d4e4f3c0","b143b8198079621e92d4119ffa8b3b15cd88b0f0edacb9afb826b1af3e8bf589","e3f3febc54443e753eef012ebaf3bc644c7cf8787bceb5bfef88a88f29dd843b","706ae073b70e6373dee7edb7c37770ebec33dd8fbc68e7fc50803f47cc2c5eee","315a2754803b75c9628a55a4cabfb74de1b5b61bd2dfb993d59bd76faec82e97","5583124fe582e6d7b0315186ecf512c5208dfdd6f55f448bd7355fb580296e0a","6276ae8d472cde22fe3044fd8f103b6cd700eb8d1fe29c2f968f62a699dc326d","8834edd87c11ce9424175f1744f71345038aee1c5b6f350a6f7bc2a49b63e8e9"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515144749 · entry 108e9186e8c5677a63b7…

Expected log hash

b6b79ad662332330e69c4ef135f6fb13ddc70048f846024d496aaa533f7f7fc0 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":"v1787137589246","kind":"published-quote","locale":"de","page":"product:smallpdf/ai-question-generator/de","quote":"Diese App ist einfach, nützlich und preiswert","rating":5,"review_date":"2026-06-23","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a3a8febb7337c0bec02db36","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 (8a6ad893af0f…), 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.