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.

“Much better than Google Authenticator”
Google Play · 5/5 · 2026-07-23

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 2514750008

Proof data

Record hash (SHA-256): 0b0cbf0da30c7ec00e3a636cf8c8efc1e2e2be316475b170c1abe1a75502f43b
Signature (Ed25519, base64): lRfFCjSTFs+9AA0q/uQdXWQaAS3ajtZt3DUV/g9RAjxSP8FAGr7hEqUy0XZuVIWkHFlBP1s+vLzvuvHJ3LStBQ==
Merkle root: 1f4f3b5edaf264bc6a00193653378e6f11cdf7d052ca5b778d915c1c21c7403d
Merkle path: ["0b06d99fc0716557b70e6b80d27513e1b8721a4f0cb1a31c81c96ad16fd0f966","295a5685d5e6ea599762c7c3e80e2cede4b72e0b47ed1a1959c639bb15d98e25","97593d08ef4e0adef879e15fc467b0997e5a3ae214ab2f684f40cd2df6ef70dd","e31e401e2cad8cc03984ab33022cfd456c0db60229d17c7b1e31caa168003ea4","548e17a8167dcd6810f64268c9efde2404212c922fce223d3d9ca4d340c50307","80b927583e7aa67f6b4c05c455d4a0ae1e4007c42a0a57813fd900ffe1637d1d","41c6c514d6d93f160fb7be2ccd9586892692855bad3ffe92560f83b02993b2ae","a5ae96f49d8362c5b44929803be0fb15413c8bc837275cd3f00418b89682baef","9a38f461b60adc4507dac3c79bb7c94abdfe7c07a360349fa23ca18ff0ecaae1","135952703080f60a6aaf9bd7362792d33dbecd7f1fc69ba49babff1f6cf65cc0","4a6f8dad4b5dee30619c26179fb877bf29cff4e0fba76ee23422cc611dbd283b","00f55b6b281b15b26d1e277b522acbdbc77de17457ec38102c811b8ac3a29248","138cc39aec794b5e40407de02fbf6256e5c6e88e3b28ce0749290b058b1d725a","20b25fdd62f3ca5757c7b65a8879088679733fed5432f6a9c311d3d03b993093","354ad39e35fba32f932ca084b3a174e4cb81b7aabf68001f138a9a4088e307bc"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514750008 · entry 108e9186e8c5677a7ac2…
Expected log hash: 72d3f466bc589a4186e04430bc1133fbed10c2c1049384c2fe15c1cad3406981 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":"v1787133679631","kind":"published-quote","locale":"en","page":"product:proton/proton-authenticator/en","quote":"Much better than Google Authenticator","rating":5,"review_date":"2026-07-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (1f4f3b5edaf2…), 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.