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.

“canceled premium three times before they stopped charging me”

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)

728db290416c3dd772b874ceb300085db7622cdaedf53846597e31ff89650635

Signature (Ed25519, base64)

gBqveJ6BXKSwjso2Ap163M1rDz1EPOErKe697UsmWyfZKhSuf9fc13BmuG+hovWro3xlwRtEpIOww0PwwG9QBQ==

Merkle root

1f4f3b5edaf264bc6a00193653378e6f11cdf7d052ca5b778d915c1c21c7403d

Merkle path

["729067d9b8a9f6af2c276abb8af18784395b1d62a217bcc468e76110b7a7aa9a","a73b134d941b607655f31040feb4048bfa360ed585f7a021ea5b5fa47d1b585f","b55aa0a8e7afe643145d6e6fec5b572938f731b1316cdc4e3bd6dc45de5452cf","632cecff47916955ef023ce9900db7c0d2824e78f4a0b760a3c1d5853018d379","db4f6787a67cf24a328f86fcaddde0ec80e35f7626d0200c89154c7b963d8160","96e5bd62378aead624087d1eaeb3ba77b3ace85dd0216c09e8c703b4bf77ee39","cdd44310efb51a9dc3fb80ecd6745408f76377721c1de4e26552e9a90362e883","c40406def56d33a5f5257e3ea50acc6be8a21fc2de83ba6354d568baf91b667d","154905509b0f35de8b5dd645ec9f523f0a40cd1f1dd2930aba43a71d86f42a04","2dae4254032e448928e6b1e419a80e933c22cf64e4657a3823f2599d0110242c","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/billing/en","quote":"canceled premium three times before they stopped charging me","rating":1,"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.