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.

“Ich wurde mehrfach gebeten die App zu rezensieren, so here we go.”

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 2543266411

Proof data

Record hash (SHA-256)

fe22e5255594e6480044337a8b42e8cf7865af359c93bf02166b380ff2a101a7

Signature (Ed25519, base64)

UDE8QW8d2hyMrAukkxkRtaLAXrxXCBhPu+vyEoz3iy0MhOavElhFd6sDOoMWu/Iu1xzE0O8H49XBu13zaDbPBQ==

Merkle root

8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c

Merkle path

["fe210900acce73231851227f60576b529291390a9ea10fd24faeae5965a62184","6b74270b3282d36c86af7bd06571d167d37e9abf70b3832fa8d4b7401880fd48","e18770e2eceaf3a682ff5cbd555c924a9413d7471c36853d5d26face4a9cb67a","57e1dd4a099b134512fbaf6ed17713c3ae59412fba356df8c95dd95c0af9caeb","6d90e5399f8aec04d1efd8da0fff99c57b87e13d321a6906fee23c7c62e0f9ae","0fa9f7590cc2a84b530a157df363b644e9bee941c12f642cb767d53f2d6d7f1b","274fc8fa3bc63625c6ee9f03d5429acb745923409b47a2dd756ca3a68383a2ac","e8c2cbff03a72811c33fb91476eb896d2b04ba03460ead45e481186ea63cf9c3","5e8be7a5811ded465330410c314639a5b40613bb15fe27a070cc17e3d1f6d926","df08cddd70f2448ba30e29d235ea68104f5c2f6976a4325a0ded101da9a6bcba","55cc2043e83be6a2b4799cb70c4f258ae16af88ec89df776812174e82dbb32df","7c94ff27d324cfeabd6b92fbe8fbca077bdf14d29975169a3a05e610d1bed13b"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…

Expected log hash

443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Ich wurde mehrfach gebeten die App zu rezensieren, so here we go.","rating":1,"review_date":"2026-08-18","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id469337564?see-all=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 (8ffad6e97d14…), 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.