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.

“Ich finde es gut, dass ich meine Daten über das Proton-Konto zwischen Android und Windows synchronisieren kann.”
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 3668908157

Proof data

Record hash (SHA-256): 09d81f295a7b477454701614c9909389f19acdaea76cc07b0fd0d730f61d08a4
Signature (Ed25519, base64): 27oVMAU21MhJ+wzpqkb/UYz09JeJ/wvJabTi6NOU/kdZJBxsiSHftEybBH9IdL9jFiBlLujYgYbgrTbr3BvQCA==
Merkle root: 05cfc62de4d0c54d5988c234e4de0ad83bfc41ea25849dd9d979eded6f322593
Merkle path: ["09edb42311df662422626c4c7f7c4a1dd5ce655afc4862e8690846b60350bd2d","6c92c2eca02c7d57d5604a9e902617ae82dd6436cfe3e2d89218ca10eb3390d0","d90b7083bba55b85c0b7a5a186f267ebc9ecc983a500fa69834c20238c40dfcf","3de0c6cff97e72b03db037ce7a128f0e77a6b8d4487a8a1c8b2de52095a87de0","4b8a618e32014600abeb425ac66d85eba548ed7198a66e943a1f36bc25b4a457","fe56ccba3f0159cff82942d89def667cd5279a21eb8407c78c4da6c33eed7bcb","702c89f4b36ec0e4951b51d0dd3392fedd6e3c80e8c4232af4ef23c9f6d476ea","a926f92425ec80c33a855abbe4818746972b88d03129bd06d35725479bb86b02","d012ad49185c2f36a91e3a1deb47a54c7a2d4fdd2cea604446a93109afe05f38","24ca0b75807d76aba4d46e3d5a18cc94e8df1204d6607c0a2dd3c26c9695b31a","065729d96395e304fddfe27eeff74b8f1f0d5044a256599a2f899b5336b6cbde","c10e7a497069a8ad0d43c03574ca1525bf4e3c77b72778d80149d53e277da637","63be509b3dc15b74d2801a17187772630297b93244215543f157cb4be936b8ef"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3668908157 · entry 108e9186e8c5677af58f…
Expected log hash: 554a3bd1bf640e4c4cee904a7897bcc74cb572b6d2b741111b4ee09cd6a9dd1c 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":"v1793707394647","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Ich finde es gut, dass ich meine Daten über das Proton-Konto zwischen Android und Windows synchronisieren kann.","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.pass","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 (05cfc62de4d0…), 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.