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 3140475820

Proof data

Record hash (SHA-256)

003a9284c2cf6a1f713e6f6ca6e39e93d5fc2e0fbabcda5ca7ca6a3dfada91e5

Signature (Ed25519, base64)

iNW/ENflwkFmX1dqMViI70UYoNJNJqkCdu716q/2PIOOKd270iPjES6hYIg12prl63gkgx0o73mlY2Oj1VyXCQ==

Merkle root

52d6be1abed15ebd0724a0e1a493d5805e1ea49ddcaf8e9e5584928cd3e4d759

Merkle path

["003f0c75a371b3e7eef368a5e04937c9e9a35b4d1c64bc6a62419bf73cef35e0","ffd456d39f2fcf16790a2d92eb2996bf39da617b7a8ab515892113053068587c","53ab62a4ea8f8146b80c91d46b6107806eaacd64b22c5d4df7da42ce552a4c40","6d058b4983fb553d1ce65bac453e1abed21165311618097188ce833670b31879","edaeb1b5ccd884cffc45992ca5b49e4e465269caf0bb3870909c0635b2826b0d","08a519d2c2093584983b6e911b3ff00a12b711259416f73c57f8b66b43aab176","39433a2424e032780a34978d25f952ac3c5305310ff4ade9c27c72725031fa4a","ee8fcc565965af8098dc1089fd5e9738cf9217286152d2046d584791f78ccee5","0cfabe22e37e99bbab4ad50e7f4fab43c31e120b924e4866d6600d483e803b9d","a7275e5061f7d5e092e8b9e5a47a08939e570cff5d6ea31a7cc8eb0409902af2","a40f2bb60e5eda074f992dc27377775f8bf3ea20cc9afc6bdfe86924e68144f9","2dc8e1d0a0e516acb8dc01ca15884c459f0a0e973ac35b96e1808b584dc8c14f","7d5e1a3da5381843d312196fd4a9f69dbe86b152542df1be09d403d47d5e49c4","71d5ef7f970539b9a82546e0bdc1b1069245bf71351875f786a78e5550da4e15","b72fcc24171828b3fdfff6be65bb433d37b8e51a187739d27a216a784d84cf36"]

Anchored

2026-10-08

Public log entry

search.sigstore.dev, log index 3140475820 · entry 108e9186e8c5677a78c2…

Expected log hash

bb68bef30792bf00f645df162a48943f770bc3f026216a44dedb4651c8ac0917 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":"v1791431489246","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 (52d6be1abed1…), 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.