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.

“Komprimierung auf die erforderlichen Größen.”

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 2632992954

Proof data

Record hash (SHA-256)

0abf70691d4f08f3ea7341dd94202bafd69f72a26384b4a1871351c4049e5019

Signature (Ed25519, base64)

4ta9r00DLmhYFVuscbOrsmxPKz/ivdsoBie9z/gHazwl2hYfpGNURMh/rBGWClPr5EU0rn2ILY/jD1W70r8mBQ==

Merkle root

761f428c7f44b8ba37e197f3cbb402245009b42c2fe1c2d1c22502b7539d8b92

Merkle path

["0aca55c946c8051d8e5505f3ce1ae123d24cce58e3324e18020d6695bc2c87e2","e44aadc74f916856f6ebc14ba4b522a3681d594623c7f6937b3aea0defb39dae","fba641a61d5425ad4e39ecaa8f18c8cc100854cfb6d8f897172751ca036e13d1","a60bd69d20ef96848fe8caf94e9954d54a4ddf834ee5fe2b2f90c9790b6cfd5d","5dc60c30e24fbc57953d214d7965f82abab07f3edbf5f11201a5d15d657c3f06","c9bf1a30fe627188a4e75d02d780b0b8d869741f43ba8055f518110079c448bf","a632e2a7da4060414c1d656b1e97bec652f6c0d7bf0102adf7cae3eeff8b58b4","98f8c38db7140f5554d00f52a080745c1cdb812c6bd96787e264da14869cdf21","a4c6b9f0134faec0c1dcae487b8a501ff61aafb058a2ca6d37a229c91c64735c","e47cf72cb762a8ac2034d6961ac9cdc01b8b23cad83bbb0ace4c9563866cfe33","60bd61421aff4d4e97fc5759cbf1dbe0bf22df5399a30dc2feb1b9716d7ce3db","ac2f3954890d50e5b934e4f938dfe72f0ed89b30b6b5e9ab8d03e21aee2ed045","25ba2ac2abca74d5248bc368aaf9983fea985a62c2acc2567cbdbe71d6bd7cc0","d7d046f6bf143929536e498046e2783984565776df0c4d84bbeb719debcca31d","98f4686310343eccfc39a6e64e03e6f8dfbadf7603f7baffd9efd8b7d19d425d"]

Anchored

2026-08-29

Public log entry

search.sigstore.dev, log index 2632992954 · entry 108e9186e8c5677aa5ca…

Expected log hash

96c11d64daec1fd5d2cb12bf1cc37249a60cb62f00cae505cf36fc8b47d6ac25 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":"v1787977614417","kind":"published-quote","locale":"de","page":"product:smallpdf/compress-pdf/de","quote":"Komprimierung auf die erforderlichen Größen.","rating":5,"review_date":"2026-08-05","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a72e46617fe2d890e4fa48e","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 (761f428c7f44…), 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.