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.

“The free version gives you ONE operation, then wants to charge you $119 to continue!”
Google Play · 1/5 · 2026-01-07

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 3198489507

Proof data

Record hash (SHA-256): 028b87227010332abf066d22f65c22ecb667405fa691d1e6a47a28954d2a2cc7
Signature (Ed25519, base64): xxTa0+Uc96rUYmUeVZ1P4cO4hZvOFqIxdwh7RTC0gPIiBEv1uwKLhNyKp10/0CmBglvCnTgpunOEfe4l4lzlBw==
Merkle root: 240cb93491796b59a812f7182e64c43781541345e454701e4066e1786c286494
Merkle path: ["028be13e640d43035315cf82d5a9c762ab9cd62e3f7e5dd81b6439ee3b665dba","7a5825d1388dc58537c52ae71b82d80f5b6c53274e728a614fc453156771fd40","ca7e407edb0819f3902258a31937c778630931918b4286f571d39c8d362acd5b","546ee950555ab33cb97318d0ba51dea477d794c018e4a7fd4a6f8815519c15b7","30213e329f57f58bfd906c1eb705528ddd9aaea7319eb08e361a8a153e042515","68a3333a8fa6bcb3bf5c754128401ac3a393ab1b2df27df0cae2aa079a859e5c","86c2f3330747fcc565420c962fd2d5088580842bea0ecf333817580205250a45","e7b05fea52ba72897228005fb5e8fe5e543a0c2945b06cb7d78b30e910bc9bb5","8009b111f1f7876cff9e250c49eaf544591d4d82e69f7763b4edfcbc5afeb7ce","912fa476c0b6214eb193d8ffbcae47109c7e05dabba44d75b3c644e29585b492","d0703001e5871d88caf60f12d372a2a578e62f739115a92f4ff929e748ddfcb8","8d2863d47cf1e91a5d95d44242edd815a5e649d3aa8c8ca4de0cb4b30fbb42e8","7115b4e40dabe303dca48b39285385aef0729dc23733c818e0f3ca68286a3ee4","0d65160dee55e809fe06e5334fb3150d04f822ce1cb47b2ae30b5d21efdf0eb3"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198489507 · entry 108e9186e8c5677ae5cf…
Expected log hash: 50393c13ffd4f8ef4c37424a8293b422d8c3ecaf6b9593225e2bb93e0cf2c210 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":"v1791686710415","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"The free version gives you ONE operation, then wants to charge you $119 to continue!","rating":1,"review_date":"2026-01-07","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (240cb9349179…), 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.