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.

“Hat einwandfrei funktioniert!”

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)

3a3d5a6b13fc6648f0b349b959320dadd2bbed4900d68128ed56b500ba234a1e

Signature (Ed25519, base64)

zMY6fnS2y0X3OAWjzAGpW8tM8ouOm7221IdS+Tfk7Upfu8nANvkd80ZTZd4C4rY0Y5dLtp/+dlH8O+ynRluKBw==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["3a3c979beaf5964eebed442d9a435b338cadd9a7d938195f842cf2c785523b4a","322e16eeaad0c83cf1fdb68a448987ec5c66acb9f626b075e285a4f521f8cb4b","3b2706de352ed600fcdc9766c0f7a722a064c0bdc8779a23caf4d857a8abd61f","5c9da06cab5ea6b024bb62d9712e77b5cea04d0b50494d8e61662164391e8be8","1cb16f00c046985bd55e25ff57a1c8644b5f9746b9545c46369c444485fae1d0","54392b499d1c8a97f8e1ef9c3e35d65d7f2fedea29a670ff1478686f820f290a","d3b716dacd2b3fd3fa6855e2f2e87059d5b5ed9c4aa7ad01dd4694e63f07f1cf","beb400892003491372bf95b290949a4e75e344439e1849b8159f8c54cdd36720","ee22d65f0dd9334ddbdf998b0652a5563d016ee72b3056859dbf4864659d0b3b","0102e9d67652257fe7827ba15907621003e566d8b6c7c81f0ec6b779d2022e7d","160c0427cdb188ce7f937f06435fa5996b6a19b4bdc7052b0b1e205016d7e024","860272714a28696648d99767aad91d735a5f60322d9fa60ef0218fd7ac5b02f8","67b7564c01b814702c17628742fb6a8cbfa0e8a213c06511e31c90cf9f3e3578","03c5fc675733b417d9af5e071de3aba38ae7f09fa5781cbd0133ff9d4e234e36","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/quality/de","quote":"Hat einwandfrei funktioniert!","rating":4,"review_date":"2026-08-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (2f068f3de56b…), 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.