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.

“Mit dem Steuerberater im Hintergrund ist es einfacher.”
Google Play · 4/5 · 2026-08-24

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): b7586d1d88975c39683a3204535d532ac66d76479659a1d44b40d9f30754ec6c
Signature (Ed25519, base64): ARRyShAQT0oyjHHLG41X9jX8MmrPpdw7djiPq2SmyS6OFgAxaeeHVr+0aDFyKrCDwtR6flGSukF6MyocxmS1AA==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["b7594793476b8678960e136d60f4a76332f91b09d345f156be0370302affe198","056b145ae31b58f3f2e70ecc4e0d70a07eebdbc5fda850a4f3132b058bdb6457","b4114581f88cc9abd8b09887a54821010600a0c0800919f3efe9ce10ada6cbc5","aec1d3520e274f451bd3595630e66aface3340e6d7947a2edd93033691168bd7","9eed618a44be175790eb080ef437af3bee13b0cc0b8f96557faa5ffb2d2e1af8","6222838c093fab6692257cc76dd5ac7b5b1546350601e51513df542899e2f9a4","19585068872c0613050d38c0332e067998d54fafbf3675ffe139d16b1d33e811","4d33358a9214db11d349f7872ab46acd5c511a35f037045f046d811c64d740f6","5dde99380439a83b6738e58ffff8674f5bf1134a1cb9fdfa52766e7753808d7f","e0fb15463145d4f2e18dee7f0f948fbc2f0858bc5b0a6f5162ce5c2d10db5acf","86c12730349fc5d6ac0f2950e37fc472c8263259c13a59ef5e1e26828166b9d7","bcaffb66f7637f1faea00b39e1b086b5c8748b956d5fec046d9c8718408ebc96","27978d996981aec54e7305bc9bddff422c8ed02487f8eaef12f84d0b2ba90b9f","537f00dd60bfbd8c049786f7eae4da8a735af5b60dacd3bc1b6054b8ac3175e3","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]
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/service/de","quote":"Mit dem Steuerberater im Hintergrund ist es einfacher.","rating":4,"review_date":"2026-08-24","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.