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.

“Der Preis war angemessen”

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 2593655674

Proof data

Record hash (SHA-256)

141d20eaf12b8637d44e2a0a7f899cecfa393030bb8d79037228291e616ce1a8

Signature (Ed25519, base64)

6ReMc3MUg7baO62DWuwkw4c+fF29BmvpuuIb+nr3+c9/vEyD7VoYTRV0cEvZPz1qqj+uORu1X2xyj8xn96j9CQ==

Merkle root

c62de506c31e1551783494d165965503c3e555ed9c56fc9a8ea54e7f423e7596

Merkle path

["141e735b45f81d7b8da409e15f854b47e72366fd6091f5538b410d3bf5c09ae4","c79bf762f57c3914854ab94a6f6d2fb0a7762d6079edaabf68829fd57b73ca10","d64d5b9ef6e49929ba91588f9392aa2dcfa4903efc5b5db71c33db077f4f6116","d0ffb958a9043829970a1259b927a8facdeff77637e8da536b32bf2d43bd39f7","bc382ad14971d63843cda83eae0bd18b10f948ec4f5fb266a6da9bee5cc56e91","6ca03c33ac5066e84fa8e9feabaad8fa314460d9b0691a5848d37c97c8f8930d","3bf54c9187717f2a4c7e6dba32e843b6c329f90467730e85c45f715a1263c8a1","ec1837e3a4add016c4222ac380f184329b0dfef94f6557969e43e36da85f32a8","ce33ce124881475d6ce13abb831bff7feb330ce742756979e5df321e19963cb4","610d0e626da216f9f8f3219376dedae2f3123010acd30bd0d28f2812e03b4ba7","3beb9e2419791c5f4003f107b8df3f9b8cf220c2cf0d95e0ea1059ea797c67bb","b6589eb019b8ec6f8ea7185a580a7050e41156727907c947ee3b1e0b10499acc","db5340fb2ee7032cf2ca3974766493186bad902d95690478526151b5708df380","4062e3741ff43f0051f244365acefd9f0704d953d0107616d7f339f1c0341e11","4bae54408dd517469b74bba599857056a81c7afc659bba4587745154292d4af2"]

Anchored

2026-08-26

Public log entry

search.sigstore.dev, log index 2593655674 · entry 108e9186e8c5677ab61a…

Expected log hash

40a4bfc261f324e812428cf4f8faff6ae237bc17c25df830e6e4b8788ce99728 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":"v1787710495154","kind":"published-quote","locale":"de","page":"product:smallpdf/ai-question-generator/de","quote":"Der Preis war angemessen","rating":5,"review_date":"2026-07-20","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/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 (c62de506c31e…), 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.