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.

“I love this app”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
0bba6ffa425e0d9c391895e09b42dc57f3bca8a92465f8c451f3d9572cec2913
Signature (Ed25519, base64)
bc5YjMLkWpxka5sPbkPVHrsq71nZJ7flAuGBnGSJ3IUwtyRDV4NMzzR54v+ZkmsDXGz7jtMMRcrPZM3RFH5LAQ==
Merkle root
4354cafe0e2ee66c200238a4bfe005f997e761de26d9e528ed6c12dfe1b33129
Merkle path
["0bb2e1275da08019b1d39e3978aa995b3967e0decdc0db3296d15fec279f899e","0384ea04893379ef276703ee48e0844e6d1966e290e15eeb5e004013e017d309","81bad93fae1d84b6c7b811b37c61d589eb3e5ea4d6e3ac8a7604ab643248a5e7","661e4fcc8bd896d2ba016c7ca13a37ff5ef24dfd21745dcc3a35651a04594354","9c1aacb0ffcf98dd9c50f82d7b93e89b1e3c278d856cf685d6f968d4d757f33d","00e7dd3ae5b627d32905fb35fdf2663769ad8279e0a6d2110c1b00a833b93469","071e1c610b0cf1388599ee0546309a45d9cdeb65663b881f14daecc9884fcc9d","65d1caab2d0bb01349244978e6046f322d4aab37f3ca76099070cbb54182fdef","93943f1165c4fe3e9feb141a94cc8b50826e6b2ebc3073c0ac7aa9b02168dd4b","4021e48b7a4778c41bb74647abdc4d0639f3d1b606cd7aa88da63d95100cbc2e","7492104a60008c8ff17d2a61269ce71d0a45a629bda2bd27c03834f883794aae","b7c031c5d5a259b30d42108b4ee16783cd741d935b245cd223ba5132a4508cf2","8768f82f7b88a738540ba1a3e2c8c04be4a2e7d425276e7dd71d0f787a7200b2","34012874980befa2c4e79572fde2605e3883df8e5878fe4daaeaa8bcd10c4d2a","16ed4be9ece293c235c5510e2cd19a05055f034548e73c12f8a9947de7b32591"]
Anchored
2026-08-21
Public log entry
search.sigstore.dev, log index 2542443729 · entry 108e9186e8c5677aface…
Expected log hash
1f12c9d846c7a9fd8aeda84057eb4d8f639bf78886a62c6290a2a60cd48e0812 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":"v1787280389476","kind":"published-quote","locale":"en","page":"product:smallpdf/smallpdf-mobile-app/en","quote":"I love this app","rating":5,"review_date":"2026-06-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (4354cafe0e2e…), 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.