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.

“Received an above-average tax refund.”
Google Play · 5/5 · 2026-08-23

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): c64872914a277c49bc6bf83f825f71ff9d3a4a3f8e71aea358b78049b03ea7b8
Signature (Ed25519, base64): d/MD0uf13vn0QqpsGE/NCFyQVhOAXNDAcYrjaNbW33IyEZYe0NN/8TEkRgRAyLNKIz/GFVsI18H2Fod1XI7XBw==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["c64896266eb96dbe9d8149285ad1c18c50f030f304f0b437dc4d6bca9c200b91","5c05714a4eece4f8482a347c2d4d3b0696475c7ed5c1a156bdd6c6f67beea8db","576b8c10a5b08eecd9d47799a4d079cff15353a3918671ef400c950acc81fb3e","0bf68bbc4a5115a4704d349cc0a2ddaeabd00331305e0511046f38d7a0b3e04b","cbe79e5f991a646d33931c8b2d4216aff1d8cb34a3ccd201fb94c82b7a830e41","14c67e11a3989ad7fe6fc6e8079f669a282793c42aef9081f80e7785c9b5b167","c4cbbf30107c1cc50d2d4c3f6d41fe74913b81522f2f338ba995e5972e91d1f9","aa1d29358fbdd681e04a365b194a584d706aa1a69bdb84843eddad8d705f3d24","47bffbfe1566b4ccffc3f42a9370d95982bd610abab762a91c61b1b7f0d98007","b2af4cc3351c0ddf6846d4bd50febc82eb3a860c484c5cde2d5cd64a5a2c99e6","9d52e13a7864d7529cca85a4b7c15a5f7242a077b239eeaf0146f44c46bf9c65","0a9a33c75948420bc9c46c8097da1b06f4fe152fd5716276fa9112799a085a6f","108f3d171e4ec3a22d208fe56e34b1a576bfa9e9f8a046f3c09e78ff42b08593","468adf75cd56eeaa89e39f50b974b405db9921529d680bbe88ff0d1caae6f316","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]
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/returns/en","quote":"Received an above-average tax refund.","rating":5,"review_date":"2026-08-23","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.