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.

“Beim ersten Angebot vom ZASTA Steuerberater war ich schon bei 186€ die ich erhalten könnte.”
Google Play · 5/5 · 2026-09-12

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 2948162176

Proof data

Record hash (SHA-256): 85caf894dddc31272f9cae58e167c5fb93589c9f3f5c9b75816a00b687a586a8
Signature (Ed25519, base64): O498+plR4Wm80e2L5FwQ1GVCWxR66yWsnxbU9DL3ii7pErqUyL4tSKUveIU3x4ynHthKe6w2zvHCp5kDGrbtAw==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["85c8dc414ca1cbde37a167eee5c3fa09b1b853246451751b0e607675d3f4b0b9","d5c9fc3a7149fb82127713e7c26162534f1294a22c4ee3731cfe268c7273bc38","053b11b0de2d671e1271999974af41a3f8959927d3d45d82f80a567b9f9b0dff","fc864721735d8719f6b0098ce0e36fa0ad83e58191dbbb68979dd73937bf5b2e","82e02681e2c641324c8a074806a916456af78269bb05e72dde7c6adcd9fd638b","fd160745bbd650b29995e09d6fd3544e8b414d1643742187bffbcb43dbbd31d1","b201b11091fa74c2886f10da6301f4f41e9b4920d4f616c3cf9450cfb2baec76","30d61ebd176898c0bc747f9d3499167f4dbad4d023495b0915b256d2d9bbc96e","82680b6c00ab5e47e19e23e17578a06ce371bf49851ee2261ef67c4dce059dc1","bdf9ff9e7d8eef00add436b54cc44febe5ce7f184a1ebf3f8b9d8771176bfc9c","606ddb4be620edd39037d7b2f4b86373b8f0989173b3d7f84a427d07c39ebf71","39081e647d66856f4efcb9e90f0cfe2c81c995dfd64a8921978cee855362e1e3","48bc5ea5434a32841beac8d9496d2692095edbb7104396574890154d981868a9","f5d1cbec3469173c409764ba850b613628c88020363ace8f472e6f611d605e0c","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]
Anchored: 2026-09-25
Public log entry: search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…
Expected log hash: 5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"de","page":"theme:zasta/price/de","quote":"Beim ersten Angebot vom ZASTA Steuerberater war ich schon bei 186€ die ich erhalten könnte.","rating":5,"review_date":"2026-09-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.