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.

“Es ist schade, dass Drive keine Dokumentenvorschau hat, das ist eigentlich notwendig.”
Google Play · 3/5 · 2026-08-10

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 2593501033

Proof data

Record hash (SHA-256): 0b9a9157b7b4808a5411f066cef2ff375c681153c1f79bcd57262b940a75f826
Signature (Ed25519, base64): PeJm9kL5CyA+x5U1sS1JjpErJjZgPIqqYl3bbjVU9cjY1y3xI7/j4uKAm2Aw94zNIxX/wOpKPBPu4Ro4+bDmCg==
Merkle root: b046f5df2a406d6c32d4f87e14105e0107f6e314c3d6063465b8c6441189c891
Merkle path: ["0b982d4735dda462a5cd3293c8639d92d7c1b8322947cdcc7dc4f09f2e764aaa","d5aca3ddd70edd346e0e9ca7c40655623c3357ca9b970e2d88a3959d33aaa4eb","554c61ff378d33344ad4e617149c31977e9025a59baf455713ea87043040ef12","c93e13bd8344733cf45850582946ff432735cc180474dd93f9066f5f73a7f33e","1c36c7b19502745abcec415a045fea2815392d2ea44b22e92f6129e912e15907","f4a6d5113540aa941aba496c687028712844cba06908fe9c9063e2e8d6cf0a94","be2a3a9190a486cbbc11b30f231fb7a3c36ddd0090b17946ecae766899e1b839","b36cd1cd92fb69827a15135b393a679faedec02be90cba0921ad5177649016f2","e4ab923e4dea32795299460f9c1bd6ebe9d97bc659e9f04e65c1b8b5c61e3612","ffe5e8903591031f1496abb82322fadfefd9c6d5be33b4cc325bdb72701d88d5","a25180395f3c5c7b6bbc657c17925654f2501306c2c5a7fabf36328313bb90c4","01f014457410f90e975eb3d5f35c027d99a0857d2dd4e4d65fab61eb21c2e49a","f337a72b5c8d32566231b69df119a20fca7daf15172b90c66e1b6d332dd78858","c35362d8be7493456726dffb35f813b4e10ace25b8e2c3679505eceb5d9a7bb4","4a4ef39d7ab636950ca6d9b7d70c958b0ba84299c7f375e0932c9308990ba8e0"]
Anchored: 2026-08-26
Public log entry: search.sigstore.dev, log index 2593501033 · entry 108e9186e8c5677a6e5c…
Expected log hash: 804ea852a1c1b02b8c86a35cc42390aabed87fd2aa29b8fb9f7f25e79321f581 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":"v1787709693011","kind":"published-quote","locale":"de","page":"product:proton/proton-drive/de","quote":"Es ist schade, dass Drive keine Dokumentenvorschau hat, das ist eigentlich notwendig.","rating":3,"review_date":"2026-08-10","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 (b046f5df2a40…), 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.