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.

“this is a very very important and super useful application”
Google Play · 5/5 · 2025-07-28

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 2514602687

Proof data

Record hash (SHA-256): 0ecbd0f14b6d9e0b3f5102eb1bd880c1f0a40e0f09254179abaf129f2c37fcd6
Signature (Ed25519, base64): DCYTfh72AvgSjPmqC7i7PLtsRFi/8Cqf9tmqfc2dndT2S1BWsa1c4qny05nL75VKejLxTHEiXk/6UisdQjndDw==
Merkle root: 749703591848535a8600340214debbd99b61273e3bed402bec28b292f90ce9b6
Merkle path: ["0ec32342cae89b39435169cc4ac51af73e26b9913dcbe7bb63d8b031aca52c93","5b13b7005123ed819b6029640c23ed941dd9d12ba74a52bab6d17df08fd10b44","9e2cd437648204403a8f5c7c86c45e23da92131ec4927178db9418547ce94277","9c993a734602de7d88cd2e438c74f156d0da454eeec2c976d1c8d91786738572","27b93b6423eaad5f144365bf1ed8f6a28d6bb3c5f1ffd0f87ecd6fa31ecbe5b1","f82951c2384d5fd9a1d5c7d5b1d3c11b617084a9da836756004a4db9c4bbf90b","786b550d3b1ca27e0d827997151d3a4e45403533356cc01503bf843b90a7954f","e9fd9fccca1dcf2d075a3ace9725fe2741be69b2d321633eb1d333a765960fe9","417c85cb5bc74224a7949ccb9ce854d65a12d5a1b58d85021ca13c2ee26e44b7","c0bf6e4c7b3b7225bd7333d1b2c852c473129b6fe0d035f8d0e8850855d89130","93679534062379205612628dc9781008baf49947d9dbfa452e39b3c67e2ad30c","a7574a1284f296e344531b28e98ffbc4091b43e8e280936e3f14d9482fb06f49","34c0dfbb126009f4c79d4469e45bcea801fec7d101a7b81a66d8a0095ff6d708","f43a1936699be5b728ab2cee5100b0cce7fa6828f7bb521f1ba149ba44cd48a1","bc5d1d560a30e83fe0f1b6a9452dc46dc135b1a7f73575ec3aa5d459bb76fc8b"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514602687 · entry 108e9186e8c5677ac525…
Expected log hash: e53e7f935eb508100ef1046b60c784e0bda15dd54afae176c275a97cf1f64052 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":"v1787131269839","kind":"published-quote","locale":"en","page":"product:smallpdf/ai-question-generator/en","quote":"this is a very very important and super useful application","rating":5,"review_date":"2025-07-28","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 (749703591848…), 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.