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.

“Very good privacy”
Google Play · 5/5 · 2026-08-05

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 3666413656

Proof data

Record hash (SHA-256): 0b53a6aef59d7ed652e24fb6049989af036b3037d992e148f456bf7be6f657d3
Signature (Ed25519, base64): UDOqdMXTq/yhEm68JU4HmE4Ad4T6ISWPZ64MU/Ag9X6BcKsjMyTdUAPNlWZLEe6+JuotCPKzExxCD2fn+okxCg==
Merkle root: c0f36ee0335bf71d5c03ca59b0f191f950cfafcbca9602c3bac8b2183aa81d49
Merkle path: ["0b3f75f4df690452558e5a44bb8d4c93cf612f91db29cb38ad7c6374ad2e10ee","13723671ddd381d56a4241a91c5439b19a2c8fd456c9baa28249ddca44cf81f3","f9cc38115cf4dd63e00eb925cc6f956c0d72fc36d7456c8f8d7b7595553801e9","5da25a55a64cf089bfb90597091107dfec250a43d5297e4d68f06f4b147aa6db","f2da3cbabf928509de2361e25a0e59160cc28a8811e4be6a51db038b2e1a79ff","d7cc4ec6927e609dbc0d3edae8726de685938d3ac8429ef1cc0b85811eeb21f6","794018829553d86dc6251054bb84d45b3cad9bf878662e1b6825986d44de08ac","be3428533f226431aefcd9e2d77e3e3e8234517085f7bea51e6ec9c67915f47a","da83fde08dca4cef6e0af4b648fd4eb72186ca378f669aad09615e7670ca2f63","c55f1032a06733c14d9312180ea7aa8c9d3186558d84c0e94fccb23a379cbbe1","be5b621904c3c26c98d16d2cbb89bcb78a3e53c55fc14229bd5b5b77f1f59015","927de500e960266e9b12c9524aa43fa0bea81f1fe70a1fb15680bad0fd81e947","b51875ca42ff32753b93a043ad0f198e3e1ef2fe1aedf16283da4cd1b4b1d542"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3666413656 · entry 108e9186e8c5677a8e86…
Expected log hash: 0d2952e2a04951edee30f820ff095b505511cde698e520c69b8bd5fc03c1eb96 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":"v1793701189085","kind":"published-quote","locale":"en","page":"brand:proton","quote":"Very good privacy","rating":5,"review_date":"2026-08-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","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 (c0f36ee0335b…), 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.