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.

“super zufrieden und einfach”
Google Play · 5/5 · 2026-10-12

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): 53c0be3cc069903d579a1b63a88129ff9b30dd5c6aefd933156e9b88d797d689
Signature (Ed25519, base64): cthI1kJbL/CPQQ7w/SHveA8DjCTZTBRKTn5FcqKhIwLB8VfhO8H+OJRO4S003tk7CHJaTUTSCCjqRQw4ZeyUDg==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["53c256060416bbb53bad96109129c0c5e5f9ab5070de04e21052dbc9d38e6121","ac6339670acded4f0c2526da43bebc9433f620504e42c5fc20f3514b0bbf49c5","b2be1baa4307644f3b9c9c3530fdd3aafb62f41cf978e68bef45959fa244822c","7726244d02298135f848fda4b9b5a269b59db1934ba8d0a9905624bda7310da1","ab9c709653e9cf0e13b6023580faf2f29870956b4c8ba6a434f29dc1449553ed","662f8cda582d333fbed752ee5083a9ab661e5fcce33d2449c4edff0748f89729","1e5b45a229d9d6d741bf13dc2ff5a25a28b25b1b603c2cd75bc7378fc000608c","f937529e38c5f00d4faae56f63c7235bf82578ffb128be3cb0f42a2c1dafb285","9d71ccc9f8de1f41728ad4b017f7851502fb924daf53cefd51a9b74b7002ed62","fa6ccde5491dafb2ff778b45d3e8a09145a1c3f73ea1c2557d62b83aeea5355c","cfd5cd803ada667f9ca2715e10233c8921b1a46fc863f814c429b8b24bca26b5","3fdfbce5ad21b885f11747a0e764cb6dc9b91f78a8b6101f3123635e0a22e27e","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":"super zufrieden und einfach","rating":5,"review_date":"2026-10-12","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.