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.

“They refunded me everything”
Google Play · 5/5 · 2025-08-02

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): 1d5447c751eb3806e2e75280bd434b094bc5223fc71d3424490a955c2a448956
Signature (Ed25519, base64): OTOLsGH3xOY4O2bQsmls7Fx0J4eFVXSZlZgWunTwUNDbXLmLDyx7uNPcx5h+wYc+tNbLBqh1rXf6S3vOJVrwCw==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["1d57cffb3f2c375685b588270cf3b29758948a7d4597197a1fcc39be52641b3d","60b343768f3fe12ad7df04c60a28ac6e545cb0b377f35515ede3c56b06f839d3","2f0879ddbacdbbf5dfd84450655d11307f911ae27c8410188947a09f1be4213d","c402dab2cb27f1fd0501585820c712335ff0bb5996e474e21ca1cd7221fdc966","c909b7c45c31c7bec42710da8bd80e90291bb2214e4df30838ee2a7259474b22","6312ac92dfc5ff46bea38f0ea5ea6e93d2fcbabcff9e61748f01e428271ea926","fd8b2c74a85b9e2254846db1534db34fab4843cb61b3a60b14d60e9f317c47fb","f40f30c24cfdb77f11309fe38ae7a30512b602d6449b9793f7f67a8df43ceed4","c3e97e6912f24e70057529e0e9743d3fedda63f647d1556669c0ad2235365d32","07e33df340bf65f90d7d54b0f16925fa2c94e200ad431c64d867123d98a36a84","3c861171afc1234c13d38e0a9581ac6cb6efc1343332ad0b81835f9345442915","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":"en","page":"brand:surfshark","quote":"They refunded me everything","rating":5,"review_date":"2025-08-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.surfshark.vpnclient.android","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.