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.

“hat die App echt sehr viel geholfen”
Google Play · 5/5 · 2026-09-17

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 3177778280

Proof data

Record hash (SHA-256): 7e490838f638e2ea3ce7eaaa1516a27d4f5568ef3187fc7e14aaad1b935c5f3a
Signature (Ed25519, base64): PoQFQAswbFrtcdgf/LZq56qAS8DjB24HDSezzEJLhPeivtIFcERAzOcJWsyg0axLs1Vr5YRD/0243EeQpNJXDg==
Merkle root: 9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59
Merkle path: ["7e48c8dbc63067a4d96b5040bf7ebf0d25cf20665c534ca9036899c498651867","b0c125fac65605e86cd105377b619e711e47f189e4daf3775ed133c522d27aba","2013d0e90f8af5950cc864864a908c5b9bcda12ae96910ec459d40830570b1a1","8f85234f3dc151fe1af2405df326e84087e72ea9c7cd0c655247c4013037833b","2c45f4413d36de1f6d0922e8c8b24fbe870cf983c57da5bcaf600cd83aada9b8","2814cb82a861b26b8d769c1c0f8abee8ca144561b07541de4d38dfdad3f55901","0a91aa0958bca2239d738b8fe85665c5fd0e3c024ad6a3dcab0264ff4a728030","c5905f12d59c3c012d8c384e90ca16f376b999f7e5a817d514611d35ad13fc35","3bf212a3c763051260bfb7f8cd239c99ff8e07a097252e753dab74e3610ec71a","091a7193a79ea566012cfae2367f1585adba11f4cde89b23d34a689db2d334de","992d22df02a2342802900c6dbe84e6f1af561b269842a209e5ade1de56665d3d","41463e83ceeb46951ec6c8ad9bc917aa51baed7fe823c51e10fb78e1729cda44","aa0e555b7739d6e04cbb925a0d34787576df4ae9ad90f53f6416ac2f935a93ac","e3d4f74560ebefc008080794ff80cf2bbc3851f4365eda6b2fbf79bf3ad31493","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…
Expected log hash: 6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"de","page":"theme:zasta/service/de","quote":"hat die App echt sehr viel geholfen","rating":5,"review_date":"2026-09-17","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 (9bf5e8bc71b8…), 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.