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 3081733041

Proof data

Record hash (SHA-256): b3cca51a68e6efa26d133f69bf3c23daab68f58a85be39a5fb3bf6131ffbbaad
Signature (Ed25519, base64): JiCUgd5eZCDlGDdoa/s8z5ohgAT2EPv5WbRfMsv8W32EPHWdeThLt3Qe0lVt0zxd94Vi5Eg3gb6BPD6/7dXwBw==
Merkle root: c5671f9a997da9b293a79ebe58b20e4534ae608121169f15a5adc358d42ed147
Merkle path: ["b3c503de97da2ac310675d0d79b0291bb08289a913cd88261a386b26890f2935","85a8ade7462bac50803b963fb2414e1472a516aaad2c44462009773e6c2aef92","0f5a4684158d653c561f4bd2f9a982509b92a9b3c214cc85dccc6dd52aef97cc","fba32af4e6af1dcdfacc019459abd4470f5e26c90bb0770faa1011e6677a4a80","8c92c629dec6390ef897b0c641f0528381a9ac037dbf81ea830263c49ef43122","4ecff73e107d6558139dc6bc8bf6f0c9275a43832d70f7bc3ea6620e88c435b7","ca953ab177afda9d5f613770cbedf971f3a44d51fdfa43ed45c262d689f5e988","2be32c707c7f22f1d85c33a3c053142225af7543f9931ca48824aa7d7966d8e7","f7d8629ba6a8154bee4a33bcabc4622aa2ffb5dc26c2ef4ef73beda48d310888","fe80812f5a406e9ef141342d3f392a21bc137183dc23685a2fb7ccf562d87f70","48f32bf1be839517c111f8d3695b25e0bf6b243556dd144c304b32536f258a6c","0e22a8f41f5adefd00c269a92a54d3c7f89dce2a532ca02f7a4743530169d956","388888fccda291caa041510ab350a71f4e5bb952b0c83f6d43c5ee2881af2c2a","8621becbd314bf961e51e6037fd253dfa12e66cb7b2d1c68d51addc52321e8a9","b178a1b83338c84f1a44bf8fe330ca4b62fad9df75daa4f4e38c0d04e336f831"]
Anchored: 2026-10-05
Public log entry: search.sigstore.dev, log index 3081733041 · entry 108e9186e8c5677a0bbb…
Expected log hash: 88ab7ac46d4614551fa6e665889f054d7592b15d91016a45621b5c46a7ae8e2f 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":"v1791174108170","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 (c5671f9a997d…), 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.