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.

“Additionally, the editor is very hard to find every time.”

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 2907673729

Proof data

Record hash (SHA-256)

413249844876512b5b080fe0bcb9d4ce5b06aa271a0aae233777c1ceb7ca73a2

Signature (Ed25519, base64)

sfs7ySZM31iGRs3sS9Qjw11DWdech8anHRYse9u/RYFYA6LmrRwn0kN0dBYloSXs/flx7E5jkCYG6mHTotILBQ==

Merkle root

b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02

Merkle path

["41308a20e6c9edef187088ee75fbd709796c9ee566d4abc6c6455cd6ba13181a","c43deb13a1ed5f99e4d20d664dbf4a7ee67c56efd5928f7a3c8409f64599ccd3","75089514e54461f8069d42ed8e9fb0ce9d8b8abd4b2e9c500c2ef3cc7c6dfdff","6e6a8a56684ef1cd630b9fa30f38b66d4c1ce36bb4c182237f580ab7938ae9de","8aae9438f36dbb722fd1429d7552497b75a4c68f737ddf9755607cae610b8600","e08bfaa2314c7627550ee5405b52d1cb55de439a7ed3b37d02a374035807534b","2d4413bb8f90b55196de341145e774e3fb1e94bf9aa8793a2cc7f281f32c71ad","bd59142d4d26a6dc1b48f39f963b86aae6702e76a386958874f03261e4b4cc88","1087fa1737fdefb6e8ccd52fb4fc25c4c344c8f9bc0f260b463a1920e38b0b4e","5287395aef2f8a25e88c8a3c50924147993f490f4003ef422cd6d48fa486ac95","e872ff0eb276cc0ea0ac8b3848489a979ea5a1ac479562bc60b28df50a3b89cb","94e922a61249c96280c1295d8745a971a94793a7c2dd589ff7c2b71a4d71c1e6","17354708d69221dcc11d442a2ae8d1a8fd9ce3422f52e63a29a599e2bc987d3a","7a4792c9dcf9466d19ba61ec3efd4f578e21f2d3035e8fa6a6264d3045083f7e","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]

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":"theme:vaia/ordering/en","quote":"Additionally, the editor is very hard to find every time.","rating":3,"review_date":"2026-07-13","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.