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.

“A message would pop up saying my subscription was not valid”

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 3248278454

Proof data

Record hash (SHA-256)

0269cd3cb45de27c0949f14e9fc2a5624b22c3005c1c7c02271cc60cb208042f

Signature (Ed25519, base64)

p4g3Vo7vsNs52u2sEY7Th/Kv4zv1QgWA8AiN0Qwt5O8/X1xgL9N1R95/aJJWGW0aM+4QtoExQS/iWCY4zKKzBQ==

Merkle root

81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451

Merkle path

["025e43c801a5ab747854887da5ab753112b8381208b80d9a0954c36858b6c667","41fed9b5c8d0230898b47d1e236c5cc1f30d67e9e6ed257a6522db85beecce9d","75328ed63201278a476b099c0afee7ad11a5d60ac969a8029ae778494a0bbf8e","2aa642b4e5a674dba369d5e7f9fa0de9a4121facb97f126219eec30e935d8ea2","17d9e52fdc9f329f44ec229764eedcf99257ce91e13ff78e48a7f9bf910433fb","8f409a91dc2866287e8abd1b6768af9c43438add2b272e83a6086975b23d58ab","ae39a892b5377b3f9be7d5b8d3bef505f701706e873ae64c59f6d87a69276c2d","4217230bca35b784521957fc390b80954ecffbe3e5fa8789324494df575a0973","7131e82b44930ae1a8f52f0aa6193ea359d9dd419e36434651a122dab9ba9d2f","80c1b1f10d8bf284e2787ece94df09442da637212ce15d57f52e414d13828c35","9008bdb00edbaf075b061c2195544fdadfcef10f8389a786f7422f7a7fa7a2d9","0f8ab31a8b7f9aa6ba4ff019c72fbe9792e5837d40b3bad40ea1cfb0cc79e40a","4fd1b36929337d346b3723be273df6d7588bc7b080f058260d538b3f309857bd","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…

Expected log hash

4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"A message would pop up saying my subscription was not valid","rating":5,"review_date":"2025-08-20","source":"Apple App Store","source_url":"https://apps.apple.com/mx/app/id1485259500?see-all=reviews","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 (81db1abd6b6e…), 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.