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.

“Abo kostet aber 40€ im Jahr”
Google Play · 5/5 · 2026-07-27

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 2893887498

Proof data

Record hash (SHA-256): 6bc19403f44b2d870f4208b459b9c31af5892c7f0656211f1eece7b066c292c1
Signature (Ed25519, base64): U3CaZNDNC+9Ye2LRYcc4ey1htPSq6eBj0EYnuA0Fg+k7SwavMv0LK58cEeks419rmUsSikcnJRNLX36mOWg2Bg==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["6bc41c7829f4ee5bff115e86849e9ddcc1512845779358d0afe5e04f88ad1a16","a103262475dd0c09626312fcac6d4c29037c64d2dc776ac1be7c4366e7d9b5f3","6fed00b0a16e7d3f5fee744e0631a8d9591f9cf425e19d3d3358bd5f852f8fbb","d9cc61b46f5b579b965929033e241e22ee174655dd14d2a43516377c09cba14f","3b34e1b644f3d61f8c64f5213cbd03f40fe209d754747f666e04a7662e78ec66","85528ea1d4fdedd098d3658b1da4d1c84d1b7e29c4a1278347c0fa86c36e4ed1","368f213a716ae6b01e60da1d5e3007818dd5ec8c47333237faed9d621c81ca08","410eff229d1819d76d5e44299416c1d5e6be5417d2e61bf290ddf779e44be418","b9d1a91321c057fc7ccb695afb556698cd9635001ffc21e7d09331b985962f8d","9ef93459679269877aedc9cded166044e465c7e68ce7c2782c9e40247bdf57a6","d91a35a18a8324fcb9000880e4f71f927fcb25a89d933d485678711818c15eaf","ca212d39522aa6a7477953ed7c65b7eed667a9e6669e3b5f3bd86eae7b2d0765","d1960e2348cd4a71c41d10f1fdeb248b829ec3849e0b1a948157b58e7b767ef1","f2c4543851e26fd9d1e3721e592d66b00f142e537786e975d115c14b9cb61c0e","98191c82333f4385e47f318835e01d44ca8835262c6d0df40edfd5f6a4dc5c19"]
Anchored: 2026-09-20
Public log entry: search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…
Expected log hash: 90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"de","page":"theme:taxfix/price/de","quote":"Abo kostet aber 40€ im Jahr","rating":5,"review_date":"2026-07-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (2f068f3de56b…), 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.