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.

“It is super easy to use.”
Google Play · 5/5 · 2026-04-05

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): 754ce7a274f28789b655aeb1a6d00110f3ac9dd09f344afa93c7a86e8c0d0747
Signature (Ed25519, base64): 6piCM2wC5Qsnj/0O4x138wSk2hmRrZtxd5tTvBoHc577wiceOs74bi3pD80AV1eEo6bYbcLhFPa3firVLmF7Bw==
Merkle root: b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path: ["754fd99a628ab509f29d1cc1bd58a85c52e5b652dc43c58ce27de0b3020b976d","6e34bcfe64f1bc745b8c0d189826bb83b4ae8325900ea0de904b538ae39f3d2a","996e7e3330f0a21687aab4cd3badf05ebe527d091841d7ac78214070415808ae","2bce3cae1eb62b0c598a1d3bb581f6ca5d9514da3ecd3e84f69675330f9055c7","4b02a64d2d42dc0df627410d0e68f1df41a68cc5fefb7be0dea0f1cace18316d","57678700317df1316ec4c9cdbb4e81c3ebc57fd91f86fbcfe37509d9fa75065d","4c5b6bf4d319034e9ae037823e980a984b856040708a9c117af98b0b38e968f3","10ef18d5f54750e0cd0afe90a869f0e4a3758be7d6cf22400db8a57e379a9d08","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/ordering/en","quote":"It is super easy to use.","rating":5,"review_date":"2026-04-05","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 (b9a08f9d6d76…), 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.