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.

“selbst die Zustellung der Nachrichten ist nicht mehr gewährleistet”
Apple App Store · 2/5 · 2026-09-27

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 3247957099

Proof data

Record hash (SHA-256): 1495d645cbee878b07074d7731d4d6e276c52e7e473c2d868ca0a5f009aa0b9d
Signature (Ed25519, base64): nCY59y4WRfgb26IrrfPZWJbHjwLgQ3E6CRR/6uK6kvWDDNPdSpLt1LL7FOYnBUxu+rTgaZiJFVRq0OUijP81AQ==
Merkle root: 417e79c5636392fe3ad064f685f70971e5d532c1ab257f052022be5e8b8c0dd5
Merkle path: ["149731cd97ac07e3a4f8d23d6f43a2942c42db0ff638acd568913df7b2b5ce46","e0d698b1ca5a354812b411cdee4dd133c60ff93881349a3c32e5215d7a6acedc","73657fcf93b48f53f7ca421adb29a5025aebe296dc95e7d4ed9e2bddbf94629e","d1dc55678605daa5b3281cd30e29d1c702c4fc2817fee3ce8420eabacf3ce064","df6bf05d8cbb6a3a725a50c3ce728a9323afe7eee27b0ea89a0c7a21e8910c8a","34ce8f3fb00d74ffc7c41fdbfc89adfe12d965cf84792165dadbf742eec64501","abad58d10391f5e9b404e9dd77063e9de43bb1be39a4f6fb99e49099dc01a121","6fc7461a961f307df5e59cff95481572e6c9a0f9e5088d53a4d3d7a0708fb1b3","e61bb9c03fa26c085185e92118722fb28dd9cc4b0e5993179a576f99f1e5ba2b","1251b16766b116aedc850bb59c3cbb6a474767921198cb2502e7883a9c0eb800","9848aa7690391972fc1e1c527156d4ff6421d5bf48b49106c60eabbbfb4edc4a","97cb88af2d1e7978a1c013f49971981dfc6f6640d100770066cc14dab4231824","a3445df7b332a2879d9dfcbad4af79652a13ea138d6afeb81448d347f1f2d128","57e0ae13344994ee6a0ba58ca5aa3276e7427d3c63abccf6f53bc322580decdf"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3247957099 · entry 108e9186e8c5677aa2a1…
Expected log hash: 86fba1d35010991e0e45c044558780825516b744aa3dd43e559455260fbef42d 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":"v1791946591199","kind":"published-quote","locale":"de","page":"brand:threema","quote":"selbst die Zustellung der Nachrichten ist nicht mehr gewährleistet","rating":2,"review_date":"2026-09-27","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id578665578?see-all=reviews","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 (417e79c56363…), 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.