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.

“In the end, I even got more back than what the tax advisor had filed.”
Google Play · 5/5 · 2026-09-10

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): 993cb9479f21fcc62687788ef6080e32b969dc7daae8002c2a29cca8e45a1569
Signature (Ed25519, base64): uvtkkENU3v92GqKSV5+k3gzWwOPxnBIXiikUf+jbqnkv7tXXx0qCFPW/l6uyPiAzxBqzE+DevUOcM6oPR/5MDw==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["993ef10637c2d8a0066d282f505b1af2ba5877bd9f31ac2aa20f6382f612bfe4","e3c5bbe52063f95d30d7476c96efc7d93e2a28074c4e601801be98fe5172db17","0167c06bb9a4d61833ce0f5d2129373063b1d4979b66c14d84416f04369d8138","a4630f3b65c2b000f0edbf4d6a5fa875d3b0a4a2bf41610812ba3b74dce7f39f","9babbdd794024919ecab332a4bf121eb503210749044aa01f45e8edb9b214f55","802513d4c2f36f6432d28620a0d442b3c455f88f66da4d1c3d2bfadb516d3d7e","b7e4c6922216229139b8a95a79497d9b6ce6021b3ebd380997b3b3e13dee6385","174faa1cea30141ef6589bc8683ed1e5e872e1cb63d1b9486303c74952e1c8c4","cb78e732c3854f521cb88d1b7c85639ff04d12929c62c734c30d6f47d04cbfa4","9aebe12b7ad5fb9e613d08b44aca2a693e3ba70ab4b327951de3c0f53811cf24","2714638b7147c0d0cb1673c1a0e1ee4b526ab6eb0fb98ab03c3875f7f112ec87","3a38d47949efc602ff6b616965b31e8678e49342630177cf4660e5e840948405","cf100015419b4e08a8d3e2de5cb23ad7a262130bd3e6bdcccfa47329e90a07c9","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/billing/en","quote":"In the end, I even got more back than what the tax advisor had filed.","rating":5,"review_date":"2026-09-10","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.