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.

“My request was handled quickly!”
Google Play · 5/5 · 2026-06-08

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 2904877428

Proof data

Record hash (SHA-256): f6e4d5396dfdde73977c30f7440ed0a361d34ac694baabba0d37a3a0b9c5952f
Signature (Ed25519, base64): LFFkdCnH21gWiysdhw9VbYgdql2iwVdHfg0ew1HXtlhgB1+YOcJ3gY7N23n6XXPwjRSUSOfQeKHLuoJN12TyDw==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["f6e6163c795ab352d416aaebb16c443aa6924288ad2294a244c71b873b43fdb7","ad5bd01456d81400e7b02ae10c4f39deaff515d2318e040c4c6733e28105f497","823b769a531d284fb24e6138be44cd9b9561e4f197151c3a232b5c105b047332","510dcb14f3fafbb83ec0b461a81419687ea15c4b30f9476c9d1f6af1b1e00676","48dee00e3c6ac491a0d6b237b9c95578e9931f07bd93038fea68b6ecdfd9f99e","f7c997fc3bcbada6d8b22a590f6504bd930237dcdbb58d427a8bf1f50cf421a0","6a4cf523fe42b8b351d0b41c1961177593b65da34d5bf0b88d49762602ef1c95","2979ee265450fe1d6fb67683101e05891b9c6834adc0b7e3e72cd5ee122c56dc","f887f5679935604f9dd74fdb4f9087842c6a4234be0d906b741eb0ba8c990c41","a52e1c5235962042ecdf6bbef0d4db003a996786fa4b692948dfb4ac38e552ed","a3cd6a309f10748c6992d7d249a79b7e2e2669fa48a49dd673039acab527d8fa","b382aebc31acbad71afb3ae06e4e6f9b354e9da57050f36d03bb1ef97dab503a","f95e3a68f572f5650a4093453e2bf28168547fa91a01ce08e539b3d7016a3f80","53a8a23597d45564e495678bf6125e41ef42f347693c924494330dab53ea1e2d","2a462314156907e42d6f0d96eed96123f1d79516aef73ed189d9f5466556b638"]
Anchored: 2026-09-21
Public log entry: search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash: d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"en","page":"theme:vaia/service/en","quote":"My request was handled quickly!","rating":5,"review_date":"2026-06-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (e299bf38720a…), 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.