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.

“auf dem iPad Pro ist die App nicht installierbar”

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 3124210377

Proof data

Record hash (SHA-256)

13b93e32ac258cb6d42d89de77a8aa2df4b0fd517dcbb89bd8840cb98179120b

Signature (Ed25519, base64)

m/SwQteaghps5/O7iTxzENh460MZ836QJjqEh2N8aAfToj8C201rFBzKz5YcdA7Wq96OafgkvTyjtoDVP3ELAQ==

Merkle root

3b820b0e91b2475ca02a79fe65f1dcaac35af570ee21f4c868099b9c17e17c1f

Merkle path

["13ba39b2ac26ae76469e291901e70d456238abd49158aecba5effab847a2f6dd","d4af4fe4c97a320b141115d07f9e1fac8f4b74c5d4f9570a62f386c1ffd32e8b","ae816a0369f4d5faf062a6b535efb03ab2e50c47bfd987da3d925ddff41103dd","1e295d55ce81a8cc92d590ddd2b6936a1cb32a51f452e7635d3dfdd3c76bd01a","14b7195dcebc9bf510520879392e2efdd6d79196e5ca0876ae0805ae5436dd90","57775d48b87df5abe90977d2b5394e86a2c7084a8bf22bb89b6e2e51c4b851ab","48d1dcda1e9276c06084e0e82b8d79f0c314e3c5c4f0257fb2cdd1b807c48235","33bf84209ea8039835febeb75c4a79a2a1f3a75710e2f0e5558d62b2cec1d9c7","0fc9eb38aab1f57a071869390c540809b215297e313f597bfb4671557d0ff49e","db700500a403a859ebed7d142e6871a3a34a172f596b44abd63a1cd0db405b71","eb64d69c96d7752864b154bf156e3619786d398cea2779150e3f2111458c7d07","4312c1ac93e9a28633e1ccba91723fd983cab402115a8acd8573e15d9ed9f630","3b28c91ed1c07c20e7a9ea170d94b917c6d123814303aca3f92997be066c952d","e448e4cc350a9a69a05538fc74a8236040fbec1cdf0c4908e91135fd4a29e380","92de2c105ee268f1f08dcd9d0a8fc946130cef7b39b15a2b5ed0d7209687c9ac"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3124210377 · entry 108e9186e8c5677a0172…

Expected log hash

20a5241ced0c7b94303a7b8002f1aae217df3f1371aea54ff5745a148bddda47 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":"v1791349684588","kind":"published-quote","locale":"de","page":"subtheme:proton/ordering/einrichtung-konfiguration/de","quote":"auf dem iPad Pro ist die App nicht installierbar","rating":2,"review_date":"2026-08-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","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 (3b820b0e91b2…), 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.