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.

“ALWAYS BEEN HELPFUL EVEN IT IS FREE”

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 2514750008

Proof data

Record hash (SHA-256)

6a7a6ea8d99777e65508e892bb08acc363fe9e2b319bd3e67bfa17999308eaf4

Signature (Ed25519, base64)

6z+7bo1i8IcWWfZgcF5bBBnN+lnGsnyIbhaQhYflZ/7Hp24YK0bZWphpgrdJIbKhWvbmooUHO5SQZkJcxDV4BA==

Merkle root

1f4f3b5edaf264bc6a00193653378e6f11cdf7d052ca5b778d915c1c21c7403d

Merkle path

["6a79938143f719702b4789bf84945e748a3dd1d131fc3d52536e3d5836354383","743bd3cb0d23b9e0316909c5ee2cf3cf7eca5fe8fb75983594a262b195d2d516","0f533780168372f688172b5911380cae4c61b94974c4cf80e39b20ae93a46c5a","1fa8d418cc7a835284cb04b10173de3317e4612ef4dbd154424fe7981260187d","79c527cc29603f043167706ec6e86791ccff18a88ec91c3167ff2f7ec2ce4acc","0fee1ce9e5cb10e7d67255168c5907243c30ad314a74cab45cee8bf20efd774c","2fded5f4944b01980a7ee8cabb83113292c302fea997eabdd79727dffea14b67","8df03cb8468b6e06b010f441359ff880c8d2a1448750806282b58afad3d9fd57","c4092bb12416984af79d8b62788a88bc33a6a6895c6a379c105142daa5b513a9","204e3f967b5746053c22ae26bfeee5b3d8ae248e4b3fbed81610b72a93093e7a","4fbc9071939473acb822f491e80d7ebb9b2f2220a5e9046f19bb48c4ebd9331b","76314edfdf88e7e9b8d1b83120396a0b82e336f95ea9a9f8e107cda76d7f1a75","262a9f81238583e2cd1857070930778ca81e80099af74b7a470c955d877ca1b0","fc5a80f8a33a91194ac04bb68228972904c735c88173cb742b33f0dc7c73d75a","354ad39e35fba32f932ca084b3a174e4cb81b7aabf68001f138a9a4088e307bc"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514750008 · entry 108e9186e8c5677a7ac2…

Expected log hash

72d3f466bc589a4186e04430bc1133fbed10c2c1049384c2fe15c1cad3406981 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":"v1787133679631","kind":"published-quote","locale":"en","page":"theme:canva/service/en","quote":"ALWAYS BEEN HELPFUL EVEN IT IS FREE","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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 (1f4f3b5edaf2…), 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.