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 klappt perfekt”
Google Play · 5/5 · 2026-09-20

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): 19213dee23e1bc2cb5500364cb55ee143ace1a377aa1957caafb13dbdda4640a
Signature (Ed25519, base64): ohC9G9UwghclsVDNT2cUKj7N7uHZ0aIQESwTsqpMTTVWgtWShtsWZw0Mfhrji3/nyauiBVD++Suq023DCS4kBQ==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["192e47efe5372aed6d3f434778e64a20c67cb7bab9c959cad63f985558be7e3d","da7434068e926b69a532c00a285f0a59042767bbdd09fdd0705918f0a10479bb","2515f36aeec2efd7c235bfdf05afb7146cbe1b86b8920c7a14c13f294df5bae8","dc0033334bc60a0f17f608cd04137d71a1cfdc0c7ae1791bd10e548edffe0027","433e23f2e423f6397171fc6c936961904ad3278b830ecf9d30fa416fef8729b7","7911e67db5d477af939083af9b04302888a5d0adc990aff439fe412afe9549cc","a2808a940eb0eb3f80e671ca537f5bc77db9941dfa5f8d9783a17f15a0204e5b","226b57331517fa187e90380b0bf2f7695567c08224d4108fe37aa809fd5c25ad","16dc6cc1cffb97b8761419de342feed8300d01975ca4bac20a0e16c428ba681c","7555ca7755ce0977aa97344e9edea28c77141a78774910cf9dd1ec7f5be52ddf","f0d849fe2b2b2e8ac46eb31ce8ef0940645609e0ab080116168fd866668ba7ee","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":"super klappt perfekt","rating":5,"review_date":"2026-09-20","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.