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.

“Das Abonnement dafür ist ehrlich gesagt Wucher und eine schreckliche geschäftliche Entscheidung.”
Apple App Store · 1/5 · 2026-04-28

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 3258859570

Proof data

Record hash (SHA-256): aec716a7903db3511cc5b9bf00a0953300e143cc646ea2f998bae9c9ce6a3102
Signature (Ed25519, base64): oygSNDlA4LAMyGzY25q3aoO5LM1Lp1bZWuSVecDJhp9MV6HUvL12mVpgaJSSsD0qSQuEj4iE0Ky3dDUngZXvDQ==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["aecab2b75401b49885ade7b9f459ffa0b457bb5b850a40b86c343ab5a8481c06","2d953640acc5c4bcfbdf58eeac9c34a0d75866d3ece0104c0be704a98472c786","7bbbc109bce5284f2b7379eeaf7df70b9641bbeb6c43d21a586429ed9a74bbf8","49202704f389b4d3a1899df189f04597bcb2324deb1ac7ee9de58405ccff62c0","f9b9b0ca7b1804ccd741de1c53496767c4965df609f9072f78f05df411c296b7","cf4004b7ffb1efbbbbe3812ef60cfdc4ae3929d1dcbb460d7dd2fe72ce7cbb85","620381ac63d0972d5a44a0afd3616b05c73b571a65274a6e7cd0d799291c755e","8ee28995521d75687bf30e4b0e9a0fc5ce82912dce2a69e5132cd30cb1ccd55d","78a0b37511c97e8f00295bae314f0c7ea81f23cff1d1a434c2b2145f0a8a4421","700c81d40830c7b5512e6f85aa2831918559ef8c7ef31a74511fc756c12c3afe","b5d2f1fe7231f75d1cf0938f45c732a4a4701555f4276b6bb21db0aead202754","2f8d0caab18ff559862deffbd8f8b7c08315b34658f65b2a48a5e8c0157f47f0","cc45c270c46556d824f8e9467a1ee746855d9678adc872e28c33c44dc13cd278","7614ef067de1e21e5c4ed10ec802ff07f79b9dfb75186edc1d9abf343905b9c9"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258859570 · entry 108e9186e8c5677a8fb5…
Expected log hash: 37382a24206a9b79ef105a983cf477ccafc4b4430b1549876c44fbf5fedaafa5 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":"v1792034893828","kind":"published-quote","locale":"de","page":"brand:anton-paar","quote":"Das Abonnement dafür ist ehrlich gesagt Wucher und eine schreckliche geschäftliche Entscheidung.","rating":1,"review_date":"2026-04-28","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1521627812?see-all=reviews","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 (ca3049e83faa…), 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.