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.

“Diggah 17€ im Monat für mal eben PDF bearbeiten”

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 2671180029

Proof data

Record hash (SHA-256)

16b2f04505f6b03e9a160084ac1f4e776a6658c7af1e313ee623b84513ad171e

Signature (Ed25519, base64)

crqofwmtron/Xcacv987zf4yh6in/UozwHnOWJvOcBxZ1VbICNatORNowk/TyLiCQDFBrYswkLyGmTgTdOzkDw==

Merkle root

f9a030a573da3b674a3e48c677288390a434ca97a740d63af7477bb9b0087dd5

Merkle path

["16b1a43e01c66d26f1c00ce33f08eee71fe647b93957458cc0a586cec82fae5f","5c0276b22b97f423b8af4a46dd16f9903abc4d828c93c4a522e44433e28ec5f0","6687da3a6349c95447408e4d50550b7e5bed30cfce71201dc4fce1c7402a52af","89ee4fe20b1f055eeb6783f1b540d045deed73d36581b0bf1205c54213aee57c","cdebdbae892143a64cbadb04222ae403698c5077a03bab861db4be2d35cbea49","2bb316f36974bf1a7c5e081645e0339de81df8978933ca383474cddaa5e94921","f84ff8c4e54fd5d84e449202ea0e63db60abf840cab1b4f8003d7420ccf7993e","48461a21c389d63831c777b7e600097635d878e2c61f3982031b58af4eea04eb","c214f92f16bbbfb0651c04be8b6ecc32e49955d88674792978c8411dfbb8e657","89f0828dfc7cba25361084638c6003a46bd485c0b167bf9273a9f8cc80c9fb7d","787a2e6dd721d76816d10e0af8f50793d5797444d6ca6b458a4a3d1b55e3b830","0092e78b615c9d228c03e53096ae4361365857530df283c6dfbf776a613c6526","4ef2bda7f26eed09474d0de127a9ffbf5b18c0b39b7ca05e262a0cf569ba9981","123f459bb0d221b9be08e494016e3b59946d910cadbe6bacd03f308db88ffcd7","e08301f62b5ff22d13e806e4fd3e64913f665178fce99d41471461eca04be078"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2671180029 · entry 108e9186e8c5677a15e7…

Expected log hash

0c7ea517d47f4c8d05e0565112b0ba6c031576195cb596b9212fca396bc97897 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":"v1788233488301","kind":"published-quote","locale":"de","page":"product:acrobat/pdf-editor/de","quote":"Diggah 17€ im Monat für mal eben PDF bearbeiten","rating":1,"review_date":"2026-07-01","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 (f9a030a573da…), 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.