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.

“However, since I no longer need the app, I intend to cancel my subscription.”
Google Play · 5/5 · 2025-09-03

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 3178600936

Proof data

Record hash (SHA-256): 8dfa6dc5fd855053135f11dc092d8e1841eec013f6d3cbfb360578533a409e8c
Signature (Ed25519, base64): L6z79895sOs9xkr5jks1wu9pvK2H6aXEkv9wYKzGCpawyGihSmCtpgDglz5Ar7uvRfCaIees4Csclq6VpRufBQ==
Merkle root: eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6
Merkle path: ["8dfbd0440cc26f189ea7dd6bbb08ab07187fd16c6f9ac94208579e02ae55d628","1951db924c49beb7e5c35a2e80e2d5f0b91c6b7ec5f55abadb4b0db91c3dfa3d","e626697208fcddd205c5ceaa79612758a2a3eee783bb217eab68f5b0ac852a32","aac3aa990e1ea4b1ef2c06658172724babf3ceeb5c9ad94d2e30f512c2778683","077f8d6d7eb9a1c3f110bb7435e9f387915304c1c396c9366648b4d1a8687910","e750efee7ddb6a2bbe75d9dc123d4f8a103fff7dd691ff7ba3e2f25d70a3d1b9","520e409d0fefb88de54c522fb22d35046f4eb7454bda74b67bb10b8672f05a98","be3e17ce43a6948286d8e1b93fd64d947d3368bacb14f8c9f11b0c75da4b3edc","dcfe22faffd48dc55f1bfbce4189325402459888abe03c1df700f6cb11973653","0328329a9708c723d7e209e3584049c47e85fdf618b3b9f79a590b399c2e037b","6f393bec751d776b1383d4a3edd07bc7a9da0957dba8eaeddda73e24e272d993","03109236374994d37cb03d835f824eb739eb2a726edd95454da9d25cea9f6c11","7461bc2d06b1d6bef7145de580cb46d87ddc9fa66e098a96698a96372c033f50","f5776b4aea049b369136550a2eba5c5f94aeaa8e5ccb2b2ad336fc6ccf74ea7d","452f4fcbca19997a15e6a6869c50e026ff02cb90a6ef21da106ee0457e55941a"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3178600936 · entry 108e9186e8c5677a6a91…
Expected log hash: f3dccf508afcb5e89d56dabc8c5aead85de215b1b896d057d463ea1c1bdb13a3 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":"v1791606586319","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"However, since I no longer need the app, I intend to cancel my subscription.","rating":5,"review_date":"2025-09-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (eee462924587…), 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.