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.

“Tolle App und Service”
Google Play · 5/5 · 2025-04-20

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): 04fc689b8f406e923a5f2de321863154fe23b5c8ecd791585a6d3ad65d131af3
Signature (Ed25519, base64): jBef/Ldn2ta2Z6Pu7ZbKN3Zc8D09he2UXKHVN+T0IF2aX8C6ogpIXDr7p1/fQY6ahK2m+/TIb0XxhU7F0uy+Bw==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["05002504488321dd2495fdb9baed95a7defef9eb475180ecc9f43e4f7de57e64","019c3ed0650c5c0e0c5f870c70ed508681fb398c7f03e293d28734da49b4e401","d8dc7ca56ea385575b372fa00bf4793940d71038bc2d9302da2864a2d4fe5465","fa102ee1c6302f8a643b6c5f664335e0b78334f62cd05f7839ed33cc02c957b3","442ae9857e61d57e6fdad01dea6f38776efa9830e384838a539d3dfe0e3d30dc","8cc7b52e1b940e796ad4ae7035495051fc5c61be5418fd22eaad959bb9e6a7d1","26bdf70ddc614159dec3275990426fbd553e9d2b2a868b7c015c329dda078bd6","caa47b67948f3ee1f339902eca71c17a46f37610c1f5c1c1255cf8ccdb99747a","727f7b3e331868d56ae27af8b1aa41e68b57cc7cb1d939756bcf033a9d163824","b78ef6842a4b48ba08130dbe754cc7950c26ef6c0a22ca1224f1faa808e3f0f3","82910a5026a7e6ca5de409e1fec5e3a85e26dcb97a04bb4734e3b891249e3f3d","c528a565399f1c43ffb0fc3019a2c2cee2d7413a87787555bb34d4d613541976","3eed51977edad6c2579b7e509587049321fa77487298d3b73535214036c0118d","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:relai","quote":"Tolle App und Service","rating":5,"review_date":"2025-04-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.relai","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.