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.

“macht kaum Schwierigkeiten”
Google Play · 5/5 · 2026-09-09

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 3199295725

Proof data

Record hash (SHA-256): 666a5eaa32c37bf339393ee93d5d60103cfce183610696cae58b8d110e4b039f
Signature (Ed25519, base64): bXDL0OInAGt4Wz5QjEmQqbImZikprDsBN6d3KepWBX2eqjCGF9T+QEY/ydV0FDwHCLvcN3HLz1LvKi6SaR5BBw==
Merkle root: cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e
Merkle path: ["666bee36f06e1bcca894fc8b226c1f5a46e6d7101663c9190a4a2f5d82f6d7a8","a961d7c3410a2cb5ebdba8b8b2011d17e09790cab948b67285671b1b8f1e3769","c22c246ed0cd69aeb30714813c627fd76bf1aa6431dc6af0395e69c19eb6e57a","27681e2d871ffe4d756d183a88e26789847c102cbc0d3b1a349e48f31638df72","94de6d020062715f435107dea27769e52fd098201fb1401fb37784f117accc7f","b78991f189a9d657cfe0467a1a180a599835bebb52e207e8ccb2d896a25cbc1c","376f534a751c85bfc8df129a25853dc52a97e99f9a028598675e8f6f8923d802","c3d5b19080dd689265faad521977506ea1877d82d44d69e91593bb4d58988d9b","accb5675c2bb6d9a6cb1ffcc2b7aa5aa0f5d3d6e88798b816fb743a1fbd33a0f","b7b121b3a078e9a66fe33b4bdf5d1019bc9d2c0a2995c2123e1a563e1bac14ca","ffc5aa116de4094887a9c6976e72852fb073e666c5cbaafdc0aa109aa93d2a1c","9abf580f4ce85e12c89ebe6d994628db41b6942235022aa14dbc3f27213cab3c","d5c54f6be615dd1c8e7a065afc12e543325363bfb66a63065a4aa1d52a1dc406","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…
Expected log hash: 59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"de","page":"brand:concordia","quote":"macht kaum Schwierigkeiten","rating":5,"review_date":"2026-09-09","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 (cb5472fa7b7f…), 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.