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.

“Kundendienst war sehr hilfreich”

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 2514496096

Proof data

Record hash (SHA-256)

4f06a890620bd736f409de8764086cd34c80e2fa00dab694e7026a0eef7eb615

Signature (Ed25519, base64)

lQrJRsmWpp39++En+699sawa0VSTDPK86AvtA+OawnvvvUsjGkiMeYtcJUa5Qcou/ObTBNE6TgACYoEE8iFzBQ==

Merkle root

790984da83ec061260aa072fed7636f9dedf91964fe0be93d7a7a622b2b5a92c

Merkle path

["4f088f2a7a975f4386f8338fddbc2c80eef87323ac80d2c779f0bfe90620cbbb","a61cec077fa76fdb435df0fb0ec678404556c3ee730cdb8394ce2fa84a5a6865","551f01accfd9be34234d532bbc4dd0097a46f497959d2d7d6311eddab110b589","b8d6a5d4620f66b24cb02faf82871a2a768f3d98b501f49dbf4b318b9fb2c7dc","f5b679dd73d78ae2d7ab84aaf5c4d75a49916611020a5ac792a14a740f21c562","24b6e11617ef3d2ebcb141b1811ea00dba69be908be5d161907125c7d810b933","9e324a9dff9578dd2bf35ff75bf739dda31371b934f866c0e4b7f7ed511a9ffd","16e90cb648ce42456a94ac932ec21786d5d919b8843d25b611f900a0fe4868e1","2764077a3fa8896e582156475cbf9d57cd56a067c49557818f88e03d3d279229","45daec9991862fbb7dc67aef45c9d8a5bd8cb8aaed62dd385d050a245dedb1cd","fc94becb87ca1d982c6aac26a743312f62a2ce812964b81162015ed9f6198b44","31bd14f17644ec0b8fbec46e254cd5af314d6ffd11550d22abfb1d2fea6d9d18","b8f3db98ef84dae891a897dec853086599d96f66b98fcb92f2fadf52dda84af9","b5732ea5319a80c00443397f423c046c357d98fcdaf87d445516405ed0934bdd","c7feebd3045cc2c03d87ca1241b2d06259ffad35db645c59ca3c5ee2004a8947"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514496096 · entry 108e9186e8c5677aad27…

Expected log hash

5d2238ef768473286d75355f523ab94503f4ccd3d25e17e9efb265aa0f540183 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":"v1787129810322","kind":"published-quote","locale":"de","page":"product:smallpdf/translate-pdf/de","quote":"Kundendienst war sehr hilfreich","rating":5,"review_date":"2026-05-28","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 (790984da83ec…), 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.