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.

“I recommend everyone use Proton for their TV, computer, and phone.”
Google Play · 5/5 · 2026-08-13

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 2622009440

Proof data

Record hash (SHA-256): 08bacbf273bdd216f3f0df7277246680dd18f8739bddefdfd869c3a4974e9ed9
Signature (Ed25519, base64): pWBssJWEKv5/w60RoPQ3YQHMvThA+GDZ9Nn12dTrZGQ641WcNtFQv1PfB7UEmza/0oVnTL8avJb590ohKpIQDg==
Merkle root: 0f9f1f98772de9eb66ade362612cd5ca656a4d200a8d47121b2fe38d9ef47140
Merkle path: ["08ba0d2603d65ee27bbc76b0751d6d802a8945f3f63764ece479477cf8d772a4","dec1715a1598dae9b47b8da06892a0d236b52fda975cbd8760e31e890836b057","1846168ecfc0c25dfc3b9791424c0de813e98a3cffbfdef32439dbbb0a018e52","92d8793d4c54880b3e5b08c415242f347b6bc02488f7abef0f9ffc56e46a6c96","5b767f6354c0c390bf692ea0d4b0fb3b943ec6ae77b73006b0956429cc3a96d8","8c47bb8bcab1a2ca52f438b03b182b8b19bfaac8011ce12cb15388912964cd35","94408bc564ecfe60907fb8a41ad08bc1b7701c8435ada9ce619c32bd04e2f753","efbe61077a960bccd085af0771609068344a7407c880c26b1d4b759831686a6c","e4d67208cfa841b77bce44823e39b50eaa9b63a28e021b31582a06ff2465322b","296da21d02a6d3033e4121706ea943892f4ee81a3aefcd72b57a3174e94ab89c","d736598e58e940673b37cd0b2da30b60e366fcc854e2c13e78db777a29f68edb","f1cffb6901dda2e564a480f1dc12dccfb1877504694bf2af489483f5b76dfa4a","2e2e215b111e44ca5db59fd252c4a02c1c9515de15b6a215ae68027b0429249c","cd57bc537bb7f2134c7a8f3afc1cbcb5294dcfd31bd287a44d448ecd8cfeebcc","e65115caa429385de2c5ad8bb60d388a1855282ef8d98462da5e136e2fb61d61"]
Anchored: 2026-08-28
Public log entry: search.sigstore.dev, log index 2622009440 · entry 108e9186e8c5677aff73…
Expected log hash: 46b80bf1a64c019a2ecb6a0303a553a66b36eee926131577fb3ad5bc065f2f13 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":"v1787895207832","kind":"published-quote","locale":"en","page":"theme:proton/quality/en","quote":"I recommend everyone use Proton for their TV, computer, and phone.","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.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 (0f9f1f98772d…), 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.