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.

“try adding a visualization feature to make it easier for learners to visualize what they’re learning”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
f2d9b959f955d51be7edcff2ef0e6ab06a23de102956a0c706c0d03b99a9a2da
Signature (Ed25519, base64)
0o6w0U9OUQCn37OFVuftFJAXB1HOVSnbGcg48MZRQXl6WMsn2BCOqhRQ/CUHh+o2zk2wSJu32tosG4ExdnQzCQ==
Merkle root
b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path
["f2d9c148e7a912715ae4bd7a6a1088cd7171a7856c52ce474cb71b70369107a9","8fcb29d62ea34bc1d8b9a2bfd48e10b3fb80592b5a4a3ae81e099d54d8c05cb3","4be4da8a04fb022bc0dfdaf6a80a3355ecc2de31a42c51aeb41cbc29a07c252d","da8a518e64a7c7569cce1fec4a1eb64fd9d3256dedea527bccee7b7957dde787","e154b09bc62ff25f2144ea4164484dce72c5ac4d57cba7d5d886ed7f6ed03577","1c6f8e3a52e9d52c38fcd4d10b7d73fe2b021cab7d04e903c64cfbb4ac952652","c161bc538bdc73cc19ccb80f6986763dd451722e9a4b5f9cb66214b87ca04b4c","e18e9744fd0b4529c60993f3a3d7bd589a003db929d0eb3d05b5bd868a3902b5","f3b18e602df6fdc88edf582ea02dea5f20406e3e3fc2e8a60e1918a8c7784312","2ea6bffa9673f3a81bbc868569f3e6ff306870034622c6e56499753f4c5dd170","1ce8185a67fc0f0f175627564ef800e7835dfec27d00240c56e1eaf3b636cfe9","e89b125d6d75a826a464fa50668f6e82a6668dbc929bfd3fce7c23cc14adfdbc","c975f4076f62a76765a4bc502e988829db65110a1650004b828d2dfb5f90a9da","f92a7fda99af63eb008476cac47b147880eec6868f847624f8b438c917195408","4543e8b9ac7bd077d9526acfdae449f0a0d5517cbb42414f50ef930ecdb9470b"]
Anchored
2026-09-22
Public log entry
search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…
Expected log hash
bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"try adding a visualization feature to make it easier for learners to visualize what they’re learning","rating":3,"review_date":"2026-09-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (b9a08f9d6d76…), 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.