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.

“Das Angebot bzw die errechnete Rückerstattung wurde kostenlos erstellt und transparent angegeben wie viel € sich Zasta davon abnehmen wird.”
Google Play · 5/5 · 2026-09-16

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 3248278454

Proof data

Record hash (SHA-256): 06372f14d7499a5e7801fe66c9a2c555329a32d6fe49a432ac2d6be3d3683383
Signature (Ed25519, base64): tGc5KuHJuEz3U9Pr6nLQnuGZRxp71PzYGpJHZXj95l0+YZSZ8W8LYa4Xz+J2p10nAe6UTpIhicaNG8lXsaAuDQ==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["0635d52e12abc9e59a75241549324103c518174146454a0eb0bda6b494b57a61","4d5657a8ace7d438c99f1223de994b45ceee23ef8f78bed59b262f89d0b41c99","b661897ff25855dc6fc0b4e3f8aed148fedb2200c425dcbbe8b6091e1c82031d","e75f894e3bf988966514fd58e241160d16f35cabf70e7bfa1d0b8d78566188a8","67de4fb77c912e93357e6d68a67619d7e7a00a1e43d0483bc71c59f27edff7d0","9f9d3b5ec1f506c3154f0af3bd9e024fe2ee552eab10fa14150382afed51cc66","a80bdd792957e768583fbc1ee7cab68b8cf445b1ce9f0ddba0b736665911c839","aaf658056387fbc1d4f3609b5ca95a1228a4f966db54c51e40a230516d6324a0","476cf20af2afe4c30b450c7b343ddc515b60f527194c8580b2a122cf6877d905","80c1b1f10d8bf284e2787ece94df09442da637212ce15d57f52e414d13828c35","9008bdb00edbaf075b061c2195544fdadfcef10f8389a786f7422f7a7fa7a2d9","0f8ab31a8b7f9aa6ba4ff019c72fbe9792e5837d40b3bad40ea1cfb0cc79e40a","4fd1b36929337d346b3723be273df6d7588bc7b080f058260d538b3f309857bd","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…
Expected log hash: 4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"de","page":"brand:zasta","quote":"Das Angebot bzw die errechnete Rückerstattung wurde kostenlos erstellt und transparent angegeben wie viel € sich Zasta davon abnehmen wird.","rating":5,"review_date":"2026-09-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (81db1abd6b6e…), 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.