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.

“It is a very good app, it helps me do many things.”
Google Play · 5/5 · 2026-08-09

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 2684135818

Proof data

Record hash (SHA-256): 12a59a1d7308e98cebee5e21b71c1754f3c8cf34a34a4e5d698f106625e0a6bf
Signature (Ed25519, base64): NhxQS+ZcBr71xkAdOIB/edArXnZ6g8c9PHI2jdWKkSGhPeaJoLZnjm91MmnFLWXd9a4Tl05tpJKtvGSyN9AxAA==
Merkle root: b3122ddd7ae78437c88b5c432d1d272e932d99a36327831f741296c5804e0eec
Merkle path: ["12a5e420a267b16d87a7f3184360d3c6329ee216426eaa89af130a0178a42186","0facf2a2eea347c59fd9becaae250f18bf1d6aa9bfbeb2737418ca12a69e5ff5","bb63334c29a9b7c2c822e3a260c3906175fb739f0f314fdc072f8b8ad65f1920","dea7cd0d4bab9d93604602fff8b3e2efbc509b458ffd767c2961ff8d8a578a02","c18ad96187cfb93bd69f898fe3a840e83f2a8dd385a8dec533bd448f062e3497","a0320ff07853c831961737a5ddb983e94da782ebed7eca3cb154ce69e2424120","583ce40c0cf5e677bd041d459bbadfef2e6e456dbf84673cf538157cea8c0370","33cf577db854070d83720de44ff7e6ccba5bb3d46f6aa4cad5bdba4ac757c7a3","16f83bc72a94310f049d2b2567a8e2d7f0c3d46300cdfbae7f63464e66d9b851","417b74fb65c84f1bd7ca7b5be8d631e289cb505be498fd3d3342077c1886fc9f","2af72f591887434887ac4f04aef10d065a53ca23b48c80d373c3274b5f82853f","afc410f4c7c2995a0b70eb5b9073e0604c33387ebf2e2381b9760ff10ab70cf7","c22e3ca4e13d6be34d7e2d787b0073655e272c17b975ef51a9080763273d2609","e0f5a3f9535914a67d876a5c4daca45483a20818791753e411dff623a270df15","3414a8c2f9a037e1540995688a310f939676497d9d86d0c2118ec57a53e60c3b"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2684135818 · entry 108e9186e8c5677ac65b…
Expected log hash: aa65ff4939d7df1f40b93b48ba8bc57094c1090543a7b0494509e8f24b5559df 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":"v1788334509514","kind":"published-quote","locale":"en","page":"theme:canva/delivery/en","quote":"It is a very good app, it helps me do many things.","rating":5,"review_date":"2026-08-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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 (b3122ddd7ae7…), 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.