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.

“Wichtige Dokumente sollte man besser nicht in Proton Drive speichern.”

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 3668944551

Proof data

Record hash (SHA-256)

01be85402970c5e614bc6792d03e0d06c9b2860494a0f3569056f39225e56119

Signature (Ed25519, base64)

+3vVVA6xTNm77+z5vlT2JPxcGukfZZpvIKFqRrU2EI4HhE0CRaLlCRncF3NN+PTMiX8AR7QbRvd9oYcsYrlDCw==

Merkle root

d8f145f4dd25b18e2b87daaf2aeaecbfc54faf99bd3bfdd8f74aa4efc5886bf6

Merkle path

["01c38fbaed150ad39436af3a67d9ea9ab30f9beef08ef646d13727f7f38806f1","da8a943aedf36e1542a86a0e49ab1e3454cd2ea6c18cf533633e8757a2c38d0a","7b4be16dcea95781067f7594f461375b704dd5edae46acdfebed8ed602b983d7","1c77f34bbc1dbc6d7d6da9b80c91390afe0834159dfd74cc2c78c9ad60365e75","07778a1628630c3d79b0e9202b79147ae7d629f2ac9de9078bcabd7170883e95","6f90b838d0f7bd50dc1830bf9f0f9063bf3938b4c02c8026788c01bc0de786b4","eae60964243b5ef5b3dae7556e073e4da709c40f58959742e42bb7cb0790d656","17afcb2f2d5a853ca8dbd85c6234cc871d99a0f7b8926fef76b62575321a2dde","c49b7602c10b14e0552aae42d086172f8da3886a97519fb48bcac531f94e199d","1b5e51717df5dbd79e213b899204d445aebc84015ef81819b768505201356e27","201d44a330ce43627228498a1a6d2056de77241b782d03c819087e11ea8adfec","2e900c12d34400e39fc8c3ebb99077c31758e236ed2350484065df834f416d2d","4a105e509823ad7c5361d9c34172b0c0d78481a597dbc352d26fbf6361d15520"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668944551 · entry 108e9186e8c5677a0e24…

Expected log hash

29b4e6eadc957394341c639515bb23b43b99093d34033c988619822df54fe84a 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":"v1793707472796","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Wichtige Dokumente sollte man besser nicht in Proton Drive speichern.","rating":1,"review_date":"2026-07-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (d8f145f4dd25…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.