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.

“difficult beyond reason to add new codes.”
Google Play · 2/5 · 2026-07-24

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 2525430207

Proof data

Record hash (SHA-256): 0a13f7842393f8a9babe3c239e6f2bdbf8a323686bd00cbf76afb63e260bda75
Signature (Ed25519, base64): ho0ZMLKalJTopsoChLTmNzMdHZmERKNRZcWWRQdqsrhPzoGvlxrQqN03KAerPQOylAyq5cZwVgUaCpuFTZBvCQ==
Merkle root: 689da4f5bb049dceb797a1ebd18ec1f343afdc6a2eec17587eed167cc7c21a02
Merkle path: ["0a1504d482e21b000f35350f23cb3145718437a2beec6e5c6b1850dd6671cf5a","d2fdf0b93d8126d1303ea49320ba73702d26ca8d529b8a5305d1a9e53fbcd7c9","d5e53b7a75d1c1a9df0e1a319325226ddcdbdfb52e87826af39ac3cab9a00d9f","b4372ee3bcae207a8f84ff557ada581d89e6ec9a2c235f46a4a201d0be8813af","907d0e33cc7b93df13695d0a9513e5f060c8b47a3ccb18873f0904aaa97af742","6fcbbdd94d17dbb01223470c5de785d1d7de826802aaf74c9bea337f144ab653","64ae6abef733e2ff3a15fb5b8a77f67b81d2ea11ea0b17a8b090985a73d5f2de","d3c1b2a946ca38fe27bef22d30dbd5456c12f183f327c465312f11070d61c09c","5c92bc22fcc5385b60e4492c9e7012025acd7b63bd9d4c45fea9eadb4221a071","4c9e74160a22446192235b14f78b389e78b8e9b2c5440ac70b64e9ba051120ef","e946fc7f79f8ecf4bf4dce719b8880c585cb43864fbdf848e2ac65dbed6253ae","76299de842eb0e0f889b88da6c0bd5b62c2da544fc8fd32539ea8b904c9939e8","b29f01d1d4fd5e719afb8d2cac2b7867993dc07c08772adb1bbe832e05e6603a","b93077b5d0d90464bafb01f0d5e12407aea90af234685d3284ce5c610fc51b1e","2492d624e607c70378839deb70fe4bc4c618faa9a11f2be7d0e42b467b07d755"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2525430207 · entry 108e9186e8c5677abb21…
Expected log hash: 68e6afcd6c232c11ffffa818a4cc0c5faf1a86dd24e2ab2a7811fa1f4f43bec8 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":"v1787196781193","kind":"published-quote","locale":"de","page":"product:proton/proton-authenticator/de","quote":"difficult beyond reason to add new codes.","rating":2,"review_date":"2026-07-24","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 (689da4f5bb04…), 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.