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.

“great experience, everything worked without any problems”

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)

d018af221a0e356dbb4da5d348924882d13be000bda4b15230ffd028cce249fb

Signature (Ed25519, base64)

6yOnIVv0yRUCEpbimznH06qUh38pt6OykbjQmo2t5xZM/vDmKFEQJ1IoHMDmnfmzZwaOWd6x9k4VoNORtwrwAQ==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["d01b7e5bde40f232bfa7ee7b5c0a60c44ced2322a766b6651706b18480eeeede","a2c83cae4aa222bcf54dd5c684315304a836fccb80d3334956cc26e25d35f180","d4625d7abcef7d7bc206a32ee0ca0260138cf4f7b651f26dfe1c5b909d45473b","1129f1608d3f56d78a962e420ce42b509e42407330b728bf0cc4cb8684affe45","4bb10b2dd63a71f008c95a841c183c699dfbb8c1b3b59e3fc9ddcf359646a729","b6c4413155d6fb948a31d5d56ab278df8cf40ea3bdb909a40e95bbdaf3df9cc3","9d48a627dddee432afa73ce0c2b5766b0717954512e5c5cbb80ba94bf40d99e7","a87b4752156d47a754a3959705fa7e640089b094cab78fa317ce6b6c7ed56b1d","5b48a932d92d79e9c66fe8914a4b520d73f37daabe0de12bd3738b6fab1a9824","8cc10392dea6fdc84f06a565a855bb3808374cd32f5d905be2f6691dd37f84ba","e608046c9c03d2d0b6ba3982ccabd707eb41cb602007bcc540a3878ee51db3e0","f0bbf34c1dde9d32919100878d63d35b3f578b04c286b3c7e9b27a0d61c8d8bb","06275dc2003d93dff6ae62dae412a16841a241c39c4d4453231315397101e1bd","aaa7b399bae700ce8013bce7d22a5956b227f2e0adcc638da32f9fc5e72da67e","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/quality/en","quote":"great experience, everything worked without any problems","rating":5,"review_date":"2026-09-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. 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.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.