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.

“Es ist die beste App, wenn es um Bücher geht.”
Google Play · 5/5 · 2026-02-25

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 3199014646

Proof data

Record hash (SHA-256): 6b2a7cc59a1c8e4a5f37d4ad21904ebc78fb60c410094d9fada9a6cce4a857f5
Signature (Ed25519, base64): GI/7o/B6MeWzqtAgxiQuXM6vHph3KrWXXxLGViBOHW35BGUFbi87RIuiQNezOAtYpymDyoOO1ayCGCPzL8V9Cg==
Merkle root: 79268b3be1e951447ad916daa23d94d3a225505999279adfec84e5728be030d6
Merkle path: ["6b2718bcc9ad0fe066bec90b03959347c6ed8f28228f51ff022546142137a0b2","f9ba22e42905db069e8f4c4087c00fcce9370ea8d62e0b6e19edab94e974b8bb","270cb062898ab66ff45f425ca733d043a5a85d3bb0382ad5b9f562166c702b63","cab3ea6c7a80bca35be6937c94de3d660e40422ad990b8f2203f84b3049fa848","f908a9d55dba346581837d01a8c91d0bfdf0625753660b24a9cf913649cf9668","c6ba34860c0baf9b915f181c9c6933cb4ad80958a7cba1035ad6551d117f777b","e3e330fa8afe42d8d50b8ac3635ddaf7d5319a5c1d1e2dba7f9641b04092fdd1","a5e122dea185e26f262b7702579263e514c0abb4ec0ad3cfebd56e89342aaeba","f5d3884eaa14aa378749e759276f141e5b52357edd6b5dee9b806d83656b4684","bdb6d80fce94d6ba0644c27e478320af634d174918dafdac9f5ac0c6856d6314","2238f682d57e5a962f762067a4060ea02dd3df1459bf75d306bf30bb323bfff6","7ea6005f1028eef3603be432c0176f10ec3b42882a3db6bf3baa0298f9970e4c","1ce9afad9ad086057c7bfc40a44d07199e0e2fbe95565fbb52e4e14d796716a0","b8e0a41590cdecf5ee846d5a4dcd3ae91c8a0a052b75fffe7c4c5f4e2ca53884"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199014646 · entry 108e9186e8c5677a77ce…
Expected log hash: 55430b734e4d00e4ba9c340c7ab064436f91281dd4cbc27c1ffc37d3e26a0e3e 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":"v1791688566698","kind":"published-quote","locale":"de","page":"theme:everand/communication/de","quote":"Es ist die beste App, wenn es um Bücher geht.","rating":5,"review_date":"2026-02-25","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (79268b3be1e9…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.