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.

“Trotzdem wurde mir bereits am Vormittag des 02.07. der Betrag für ein Jahresabo abgebucht.”

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 2514750008

Proof data

Record hash (SHA-256)

84b675bcf6d264baaa6ae7d17bba5acfcfdc6c64f79eec2451bac7903b971025

Signature (Ed25519, base64)

0I4aXpiMCXUUS54vsFYkpMVk7DpNprljGbcALK9mv5khJNYKWMPHQF2BrumIbItedQV4IHbuw3BLeezmZvD4AA==

Merkle root

1f4f3b5edaf264bc6a00193653378e6f11cdf7d052ca5b778d915c1c21c7403d

Merkle path

["84bf98476b02935f406f9f0ec8e1e4971c2f22c9fdd4475c1c60c6da7795eb14","d474600a3f2e1c974fb1bce3d743732d8bb0ce689e373543ef9e2df9896ea1e8","8896a7381843ee4a70ccbb1f6e350f3aa49d3bdb652b815a276027d28ce18f27","bc07782e8c3b7d53bdb58ce38abbc422c204189629f9486898a583b107c4c50f","dc7c66fb613feef2f3abee2c7188ae48dc378906a1a9a9f3ea65d2c9a2b78788","2c4b1a620b1deb027cd60bafec5108a9f0a8b687043b965e33c1f1565495ef41","7b2e604c513295fc2609db6507dd62c783910bcd9800d20923da770ed5e528ca","fe1af6977d8a70deed183645879ef83bcfbd59eea3d889c586331ecbfa124b8a","4d44f30e67e30fe755faa8ab2f55a7aff1af02d9ff9858772c80cee9824e6ec9","58a03077526c5dcd1160c7a45d3a354e617bbd385d58a5ba991dfd2fdfd7adc2","0cf0ad2f0b64fae651b62e647c524a4c9f49825d2d30c911653aa0d9b2dc525c","eb0a6a4c2cf5e47f181a889197ee388faa509c27825a272b34062cfb17e38ef1","262a9f81238583e2cd1857070930778ca81e80099af74b7a470c955d877ca1b0","fc5a80f8a33a91194ac04bb68228972904c735c88173cb742b33f0dc7c73d75a","354ad39e35fba32f932ca084b3a174e4cb81b7aabf68001f138a9a4088e307bc"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514750008 · entry 108e9186e8c5677a7ac2…

Expected log hash

72d3f466bc589a4186e04430bc1133fbed10c2c1049384c2fe15c1cad3406981 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":"v1787133679631","kind":"published-quote","locale":"de","page":"theme:acrobat/billing/de","quote":"Trotzdem wurde mir bereits am Vormittag des 02.07. der Betrag für ein Jahresabo abgebucht.","rating":1,"review_date":"2026-07-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (1f4f3b5edaf2…), 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.