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 don't like how you have to pay”

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)

7765f1d66fe907ea02bea366ec4e185ad9e1709d4dec74b0d3e0a34908056fd1

Signature (Ed25519, base64)

cX7xTt5gy4CN5nfUIm/BBAd6+XZeWWGzf/W9a+VzkkVHGWYhxtZAD2PHXy0kb6tFfvf9DgOXPDiAQCSsmck6CA==

Merkle root

b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02

Merkle path

["77665289bd105cd60585956d977709c626b01c481a028e94dab57e51da1dc2ba","7dfd1de1d58e6976b7b114fcb920f016a2c3bcb29da772f9623e6ec2626b2426","c3d19c8816e30902e89a98ec9b085805e748436fbc000e3e7f59bedbb1ce4e73","5774f2e227077e9eca23e92070f1e1c2a6ec942876be7a206ce816b48f2fc448","8aa3b421fb5bc0eedd314a9284554ae5ca120814a196bff3df1ee0ed3f85133d","78533305b5e6d24be69a36c839b601b9580b83692defe4942056b6954668c88c","8067eaed1c8b9158d86af98f2020b88007ce1eb75c7cfc0d464f7a42ae4ead15","f68c52a80689a142c4deb990bc1ca9582724c87bbdc4ffeb57743ac4f2bf42d5","768d53f06e1f3750bb70dfcec03952ae13b6b68a58c4203ab3e562558e4df493","d9a48ca9fad2b2fa2cd0e15acda4c8dae2cefa23353c694d409bef36801c6376","fe718997edf5ba83b24bd1cb8cfa58771528317111e3e956c9e9f853ee4ee6c9","f8cfc666649943796cc64798f4b6be7235ebee26ef544e99b42bab2155b6cbad","8b252735b283ab7584d9f6925f08ed38c911c64db001463eafabe5061cb6f9fe","6c299608515c69a03540be35865f96ca4932f3e0403f8f39fb0e1c2e2aedffb4","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/price/en","quote":"I don't like how you have to pay","rating":1,"review_date":"2026-08-26","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.