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.

“Ein nicht vernünftiger Preismodell.”
Google Play · 1/5 · 2026-04-02

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 2514851395

Proof data

Record hash (SHA-256): 0bd1d455edadf94dac00e1d5a64430d6a6d83bd5e089cef54c78efd8ce73728d
Signature (Ed25519, base64): 66UZ6rr5wTokIJhG3dvEyqjBuK81c2dsa61xjgy/hr5/mzfHn7wdFjaCsTkCCcy3HHfcCmsxmM3ro1BYpS38Aw==
Merkle root: b6da35820db152d3d2c0cee337545e3489f0422a146fcc8c60737b1d3a3ef55c
Merkle path: ["0bca562aad4b9b8869b52d90a2093df6465db62a2459508bae4e96f653ae96f7","33cedb525d85e509fa330a2dea86d9d7311aca5416f46a01ca0eb497f6470625","91c55974a39767c1163ee72ecf063ca2e9cbff0733c582c8c93e4c0f1dc51d6f","c56e9e83caea74b17dc8d0bcd48702cb41dc5843cf000bf68c9260189880bc83","a6c3704380c6ce333012934aa201a52b9866c62c8b7947047dedd352b86cd5d1","f0be607e82bdf3b8ee81e154cebe886b8068fea39155c29f9b0da56b70bc0b12","7a0284c348ea49bce647aaa8f8c0c95efef7aeecb283e92a0a51e1ff7364fa6a","c93c26beb2a37dec11d673e733032939155949efac2de88e1d05e72a68eddf8f","51f0ba43a03cfd780c2bbea3352d45e3efa2f156bb748cde975452df9bba1348","14dac0adddf323e69e9ef8f42d88b43ffae33c97a160ead0fdb242051d3da527","e78efaf320415120a8dba17ba0c988c4c27c8c4e3cad17a7d8db163cfe05a4bd","00658215e391bb39cb2a4470aa8304aac30f760b4b7065f3aee8dafd9f2579fa","a1ffb0ca27bb2bf54e7fd100f5c8de52d61a97b22e607de0b6963ed83cac9929","0e90fbed1cd619e0c2620a1f61162a7af0ed873785a7985f4469ef4721ad000f","c54d917d90cf6041da53ed8de4347323c6a7de99e787dde7349330851a57a3d5"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514851395 · entry 108e9186e8c5677a4f62…
Expected log hash: 687a04ce8b1c63a953fd353f279012a3ef08c4ad12d885582b1b6ee85d05b900 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":"v1787134378129","kind":"published-quote","locale":"de","page":"theme:smallpdf/price/de","quote":"Ein nicht vernünftiger Preismodell.","rating":1,"review_date":"2026-04-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (b6da35820db1…), 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.