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.

“Einfach fantastisch! Sehr schnell und qualitativ hochwertige Komprimierung.”

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 2524810465

Proof data

Record hash (SHA-256)

08677bb5475d2d142859974de30e34511c40e741e37e232a6bd21e7346b43102

Signature (Ed25519, base64)

HwKjqQwY1bALuaWtXoTdKIVRDwfmrv4vDzDMI+zubS10o6qKQCFObIyfxdJAbTcj4zFf8snEfuIGGv6cuVuHAw==

Merkle root

3e1c67438f658ba7fd015e6979c1bfd82d90efb0848cecbd4d902d6b2ed171d3

Merkle path

["086714e59377daf9f9dc1fa6511136fe1093b55605701c0634e5a90ec0abc6f0","2a7e5659a4223574920a1401e2f6b51c6640a731b449b652423f905e3b8eda17","4707c328344519b46dae2a66f5d302d4079d1a4c6d53927d78f5fe01ec2fdcb7","3e5ff39266b31db1087731218156e337f9764ed2386913b96136b46aaf03c81b","7ef3452032722eb01f0ef500a2aae469d0750b628001ac25e47f764698ac4400","bce96b65ad9212a414a496d4e05a5decc77bf14338a898e421e09e3e895ecf67","a1608a5151b350858fdc770a1e0bbaf314c03ab5146abee1b94acccaf60dba73","4840a1baf084189234bf3741e19b551089f8feaa6abd3434e64e4be4931fd0e3","1fdddea328835742ba552a4cc2d47f0293310092ae21a95c3b7cb9a385db7905","21bfd967beebef549712bdd5934300fc0ac86addf90f1223764607fd47af5806","aacadc64e7d7887ff88699bc333daff48d46b4e6179a20d2f7632f1b62733181","a84f19b73d0745b184029b69cf9f25565f40d942048a82955efda21766296b26","fb183b6f6365289d9e03a04ab6a5ee3d62de93cb7a6ce2bfeccdcb2ed00acf48","0790a9ec23117ba3e0ba9a310290906a4f1d2b0055d4607b106ab21651087c1d","db72b82118c1e08b77018004fa72584377d6eccdc4c75ec19bef6a78273f75c9"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2524810465 · entry 108e9186e8c5677af074…

Expected log hash

129b219cb6155ac24569a579c61e8fc9cc2d89305732944b8849d5e719dfd073 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":"v1787193927339","kind":"published-quote","locale":"de","page":"theme:smallpdf/quality/de","quote":"Einfach fantastisch! Sehr schnell und qualitativ hochwertige Komprimierung.","rating":5,"review_date":"2026-08-09","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a782e15f3ae31046ba57e21","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 (3e1c67438f65…), 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.