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.

“Steuererklärung leicht gemacht”
Google Play · 5/5 · 2026-09-04

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): e7952ea63e7a05068d31667c02e960b26fd0c2c3af600718536db19cdfcbaa57
Signature (Ed25519, base64): W+z9jE6njBO3/UupioEywMalwd+iZjL4TeOuJTWOxgekK0tWZweYW/7BOpSU6bOyInJ3jY/tltlhRXiSowR9CA==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["e78dfa841f17ee8c086e2f996e3d6cc75579870f6259cdbfd806e7a5cb11e871","864701a3faabd86be2dc4ed5147464632f7d1261d1aaf7bcae92db10b140fd52","b5aa0364d62bba8f6cf8c3dbc43ecd9fdf2ca9b459955424a8632166156a38b5","ecae16a4c1c595a18c08f06153b45003f80c9b9fdaf3f2942c50b20dd1e523c8","0617f326a3a83e36bcbefb16e5c3ce29e9517bbc7c44f92d529c9fc853761efd","a62a54cc13abbb18d6f0caa5dcac70209cd2c79f5845ff6949a96b8978572410","b7835419d173022e6052381b16ee80a6248e0b56469cdc8304b990be0e3f4e6a","d45d699b8e036e09290f7a8006f9414c8e618159c35b0c5e81ee8b966c4cf586","de557b3dac1459ebf7b76de4d4918c155f9478a3133165ae43e32de72844cec5","022a2c3b9b35aae33229af8c682de79f3ebf96949281ea89d378163ed1c03673","8d86c589eb2eee8874e11ac8667476155b0a0d09f41ce045f571cfca33f7602d","adfb7af951ab6d82fe2ac7465e5f822234f3eb32c74ff914d3090db1700baa73","34bf35d805c4f7af315854dc10a7a10ae0ea054d46dee40b360c3f04f8b8e60c","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/ordering/de","quote":"Steuererklärung leicht gemacht","rating":5,"review_date":"2026-09-04","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.