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.

“sehr gut vielen Dank an die Entwickler”
Google Play · 5/5 · 2026-08-04

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 2681187280

Proof data

Record hash (SHA-256): 1a43c70b90f921e76d0eae60184a81d08c1ae364ffdf138fb865df1cf5f632b2
Signature (Ed25519, base64): F5XyZHfAuPOadlqupqYIaPZPiVMGHe2IZuNTlSQtnBSAqHr0Y2nYLBpT048JCJoYJODNSppBfsvrUFqmHYESAg==
Merkle root: 33c00cd8782e83e7660b36f31023b9067dd316746fb34a5456c153a308339c6d
Merkle path: ["1a4638cfabb3f3a2f2219eeabac0c12396c09e6e1876f57950b972dcca3f69bf","3fed6a343e7a968318bca0abdc1ed09b1cad135a1db15fb366f5082c0e3f37a9","f164c7e72803f61e66ef7142de2c8cf2e54f50e63e92ca2194dec830e8b7b2bd","cf4ce945d98937e1d1770ae1c90e268a8b369f4c67c3af089f0eadb2fa0ed603","4b96c044751b6d3e7e15b57dc6abb29a3f0e60f1e41c73b1487d79caf64dae92","b3864d867ea9d95786b784e1cffdac611f7174b44f2fbe1308050e9fa706bd40","a49caab3c0f934fc4f4fe8656600b5ec274467f948c90efaed57b0d36ad995cf","0df8719bdb562223af8a28fd7834e9cf3cd3368315930c6fa591457fdc7ac560","8a2678d063891aff75b40b697c696fba7706ad274289ec80a4c13017b8faea12","74e150fd03656128245df30ff4a83e05b497763c3cf3bb5a5c454fb8596d18ba","cd51fdba5f0fb33710a8dd4566068131b71ca3c953e7eb113e6dc2b4dd2ec1bc","b933703f4bfb1c2446bea975148f6b547317945a5c9a9501259889c86123b621","d18f27a41b03a07d2014714c62631a673cf276797806c236330f5fe764feb6bc","c4aec0fb70f7ab82582654e3e3f71a251f73979eaf3fcf5c39210c14e09f34e5","1c612a54ea4200be62bfda791ae9c32645368a1c77880f74595307b48a6cb39a"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2681187280 · entry 108e9186e8c5677a68da…
Expected log hash: 6c4c4fe04f66541fe16d28c86bc42894dbce07874d32b961c3ed57a7667195e3 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":"v1788300906973","kind":"published-quote","locale":"de","page":"theme:acrobat/quality/de","quote":"sehr gut vielen Dank an die Entwickler","rating":5,"review_date":"2026-08-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (33c00cd8782e…), 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.