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.

“all on an unlimited number of devices”
Google Play · 5/5 · 2026-09-02

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 3637399944

Proof data

Record hash (SHA-256): 1269050b5f775fb282313f5182dc6e4d6191190d73f41cc48ceeee9b1dc8352e
Signature (Ed25519, base64): jjzyZKARthJ25dkjcjqjLVcOAcuo2NFtQ41SaDVqsXl66gHoq4510GQBK6eH4LZ1ZHwTxcLBeSdGEy72vFYRDw==
Merkle root: 7dc417186ff758c181cdbe9905e2a9f7c2944eb88a41e7dbd52a48ac04321d3c
Merkle path: ["12712ac3aa342584a5d42926ab5d61612ea4b4c45d441a3ac8caa345cbac0fb8","7b99f9aed1a3982e9ebf244f20c39fd79e35c1b2df4dbd53a1825de92ef72d55","25ff28eaca72514a7e117dc50ff7d770ac3814ea8e24bb993c872eaaf627bb25","12176c7ac3ec98b76a428abf34fe83ad8f57ae39f14736e20f189593c9527ba2","a997aaa99f2a7a4716fdf1c69613b1501688e0a02abb1f907f512b4e0d926554","f59f6698ccfc25513af028090cc4541c97df0887a46bd5328cd9544ce654b13d","9870629632ca9aacff41a449969e44fa2cdddfc426ccf21fe5417498c3a7ae78","9b1b766daa6af031216c7e7098e090aca01348974acf55844b2c0ed27125433e","dfc8046ebf116e924f1fd32aa023c2a606fa6644fb8a73f2835b369673920674","07642ab88ebf224ae3791faa4d4534870be10ee3851ce4b9dc113c838fd8789c","416ac72626963bbb3122bf665109ec7d944d4d5c17f5d6ba77ad19d4c322fe84","c55a157ba05a1522cdf00c427814e744bb2583aace026375d741f884a6dc41ca","c2630b6b9ca1d11e16cb99a494743682b41d3604aa81f0e537e045d0ceb25c0e"]
Anchored: 2026-11-02
Public log entry: search.sigstore.dev, log index 3637399944 · entry 108e9186e8c5677ab939…
Expected log hash: 17b34089c9aa8091fa75e421b51f027dc37b50e8cb79082ca972af63c8cadbbe 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":"v1793587696188","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"all on an unlimited number of devices","rating":5,"review_date":"2026-09-02","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 (7dc417186ff7…), 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.