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.

“Aus Versehen gekauft bis dato keine Erstattung”

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 2544236959

Proof data

Record hash (SHA-256)

a8f824d179ef9a0f33f2fb02568b3e8f897bbe2be4be0ccdc13666877d286ab7

Signature (Ed25519, base64)

mBci3/gAD8FKvuXbnkx7Fj2D29Bt+eimGyD+JugMMhmV3ZzzyfKRunvBVX9gGDXLBagn4td6lxQBpdOrGHnoAw==

Merkle root

cc942239c46f13b1af6cdba0960a24a6cb62e7a7a462aae1e8126c0182dbffc3

Merkle path

["a8f8e8355a472b3b0237e4d9f1938f89750f4b0de98913f5c1678b3c32e83c85","00c195275c7af7284170faf6157b427701e57eaabc1945e908d070d4d50da419","42f5c8583f31923f134471d579f47f6eb6faad069d50a8a1a5e2b2a9b6da8fb3","a5f7717edd817c93b3f9cbec6b5e2117a30d25d18342e47783dfab681222771c","9ecb867b6ecb612b47723814d1aa07edd20bb92d9f788acc3f455b5104662f82","ba26356a1fc5510012218b3308d0555f9691547847f0756593d8010d1a6e3795","7b037fba10125aaf8dcb7b4f95d27c5f17371da262bbbc86a478f50c1f094fdd","a3bcf0e8d750a8f9a9b2f11d59454d3a46f8d99328a69e6489496d05585568f7","7bb3eb7d5d5ca7aca0fabd98a8a076ce85a65894384a55bf81802255e9cdee2e","a0e83b75e0c8924fa37a3fef014ba0a314b692241b2015d4553bc34e751e0af6","21cf37a29c539c26c51c077e14b97e72fa09ad4774a7ccc3091c32704997e14a","2087f1457331087a09d26542a2eeff2f7ba6c6defe2a4d5a6513941cf1a33537","72b50fa4c81ff112c2c888ce3a6c0a9eecaaa17d0fb6234aa2344d0f3f85c205","9a1346831517d7bfe15c9cafe704fcdd7e5320eb2bcb608a630afaaba7d67d2d","f25e568e6bd90a5619f6d6d975016290629a8afed06b80200730e4e12fb2d1bc"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2544236959 · entry 108e9186e8c5677a0341…

Expected log hash

c82e13ba2a716d66def44df55ff50c2e9db35da204570a7fd5650a8bc2702db2 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":"v1787290890795","kind":"published-quote","locale":"de","page":"theme:acrobat/returns/de","quote":"Aus Versehen gekauft bis dato keine Erstattung","rating":1,"review_date":"2026-06-13","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 (cc942239c46f…), 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.