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.

“Nie Probleme gehabt.”
Google Play · 5/5 · 2026-09-10

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): c4c24e8e559fe5f0c7e28c3dd833694169bffab7cbdd4f1e5c33c73a0541d2ef
Signature (Ed25519, base64): gVtY1PV/7UJhYmUDhS4tCY2gtCukFiFi1E+++PA3RLliJ3YyZ+FRC+hwuRgK4YOtAP3OVJGOZ1Pi2ZAMJR1qDA==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["c4c44d665928d8187ffdacb4e03c2a65d3b639728bf9431f6c16eafd977b4a21","843940f1070f1eec76d6f11b2861741f361c26d3d65d836785e1ecc129c8a707","f365ae82a392c125b6211005443ad0b4a8010fe56d2e0cf474818fdf6615575d","bf07cd56b3fd10a3e96c20533fbd422f868147ae202c4758b1e649f8f9dc2f2e","fbc0a28684eb9a444c9515a625effe53a1e3d1d561f107cd7a38a2e02db7315e","ed253b2aa8ce89a22fde024dcadfdf637f38b4ed925e87da313f3883775c2559","f13026af04023375a31a058f110cba3601ae6ce320de382ccb358cf0cfe25e3e","4f051aa54ef0024b932a740d9834a3f3ddf6fd8e9061fb81abef143f151e4eea","ee035ad3a23eb365a82f9c8f0269e3a7f4d3340dd4ecc1c26937efbb32e2f915","89d3a42ddd97f88a6c85223d8c4c02e55f24efe7b8561bf1a6db296bd6ebf6cc","5ea62ab057d579ca15648207478bc4df778c9ea94e2cbab7b35eb1dae1e3d5ef","38376ec9f35bcd39f5035c8425fc104742746cec8f0f18f678e6ec2b7c8970cb","f798c0971d32a6ae8da39cbfdd643aa26fcc32dd200aa7f9151048a02f8ece59","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":"brand:concordia","quote":"Nie Probleme gehabt.","rating":5,"review_date":"2026-09-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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.