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.

“une excellente application”

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 2621946731

Proof data

Record hash (SHA-256)

320ebd18859962d65878c3573a87b936554a9fafc96d7d0de9cdc1e5cda57601

Signature (Ed25519, base64)

hvUZWLM/9Jydqmebo1qsMAXOuEyQ7exrSsRnAOcOzsn/fwHn4ZW7J08NFtpi6tOH/BarsutIHpigRs4H69qsBg==

Merkle root

3dfdf7381c8d7ad52c2e382f4e16b6f321af764e7eaa340297113fa50b9a0792

Merkle path

["320d53a5c9c8dadea938ee466bae2d1bcf4da292ed7086339c8c3e3ce7aeef8e","444e3ab0531c17f0468ebc3d18f47d55f9dfd1c5516ff97a37343d0d43f89bc1","dbd98808a78a5b1a1f157b0f62d4a83a1dc1cb92f168a5bec79520cbc87c62fb","e49e05c0b2bdc7b40ad5dfcc1fabd1ea50d4a6a9bc7339724bf9d7696d04fa07","2fb2a7bc1d88a431cd296ef4ae7810748efd398e6a56ab5cc9bd4f430ba6f90c","ea96c61c6c2d604fcabc1ddfc78aacf937a066766475c12ff384d32963a2a4bb","9fbb27f566e55d001e14f872eb4393a38de07468011bbac2a7f57ec0101f7d0e","04d174bc1db0f1da09cf0483b0976f55820a686d317f540040e45b85d99e1c3b","0406709d68beffe2f87e7d61c088e9ecabf948d3ed7922cef53c5c5909658f0e","af409fa05653a35bc5678b6aab5608de5b8e83f40bb8de830459d58c2e67f525","39d48e0512c6c858ffe13aa8d9c3cf064696180f1c57f8e2992972537a715189","44707c9175eed8f58c6596b548418c4f1de2c3d95b2bb5964cab0d14f7d1aa45","6a86c1b0b9b1ce71531c9f122b4604e98531a63793a187206bc1aba684cf9b7c","81acff1af3c2bfcaf656a4ff2b93eca8121fe44c1d5b5a4dbce370acad78d2b5","377cd45c8c0bf5fb2c54ade6d9c4a053bed5d007e1a30f5279132a3d565864ef"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621946731 · entry 108e9186e8c5677a0a42…

Expected log hash

ea07e2ac95e2432412286c8e9f169e876b2f38f9762d26c0a0ce3cc128edcf3c 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":"v1787893493942","kind":"published-quote","locale":"fr","page":"brand:xodo","quote":"une excellente application","rating":3,"review_date":"2026-08-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (3dfdf7381c8d…), 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.