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.

“I received a tax refund of €397 for the year 2025”
Google Play · 5/5 · 2026-08-31

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 2948162176

Proof data

Record hash (SHA-256): 1ff66dd9e5a3e6eec9bb554dac30a8c3b0f55261bbddeb692f8ceee1f9fb1d8b
Signature (Ed25519, base64): 7ua8GYF6758TeX4JP06YmSo455GEWYpGzEbeeoWSO166Go3vXl0Ablhat6yEXVAKRJP4//n2sr0/W9Mb2t60Bg==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["1ff23d91b0dd33f537bcd461e1ee020780606c842a3090bbe65ffd15c2f75d35","48e07918f7a356ea56a7d4cd5885e66aac71ffac9c1db027415287e1fe4de022","bb4831229c0e787a5ad54633afdd7522ba2d9c784d08824a3b640c96438f3d4a","5c18378060eb032552a1997e5d0f575eeaaa8e2a3bc2726a8276876e8e1fcf80","db56dfdcdadc2eaa80c38f520095d832e2e9864790b29a5faac3d5a7d17d0b4c","895944a9ea12d6decec0af6aeba161e80be5a6ae74b6fd9474f0454895406958","5ec46b88e44911382fb0f5e932b3a5613c238ad5d624255aefcd17361a6ce36d","da99c1059185e46ce1bd7281e2db9ac6afa5834ffb7a0c680f3d6eedd0a5b2d1","2982cebcdccd9a8d54e592beb8078046a43da822106d8bb3464bdf056b28b143","468ca83ff55a7b670ac3b7fa99569e6593c55217c35a9013e3997118d6915e89","c72a57b8d1dd9686713731a21201720f6dd67d27812538987fc03760d1ed1b67","6364e68670997f2580620295dc73fc1bb7219986bdf8202c9b9ef24d8e7f20d7","a46038d90afa57a10c269469667a209623fd066d3f084698343feb099fcfeaea","e892ec98bb605644ecd2848bdd788a136c626ca940d293df8f2f1ab99110b2e3","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]
Anchored: 2026-09-25
Public log entry: search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…
Expected log hash: 5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"en","page":"theme:zasta/billing/en","quote":"I received a tax refund of €397 for the year 2025","rating":5,"review_date":"2026-08-31","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 (539721061967…), 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.