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 helps a lot with memorization”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
d7a98a05f5451c178b2f40c4c9e0caed358560447d0a838fc52d6f9d21ea42c3
Signature (Ed25519, base64)
2jLEK6rDcp09Suq2aOtXMxIgHYNq5xPqdWxbpP+mgscKYP8XiDPc7D7tXMQNA/l9ZpCRWomcADwrNp6ztdSKAA==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["d7a6c9f398648e789f8dbad56d59882b99b7c2d7271fc2fa25cc288773a24059","d481f4da2a4e29161fde4278da98ea7ad3f2e89a4390bf82070b6eb3a35f6d4f","9e84f49076571f89f5087ab536a6d4b71ea3bb642a01ebc1cc6008eaab3d830f","0c0cd18ed581f6b6f1ea77cae262ef3ae5c4651aa344644aa3586a915e177f6e","160a7625fd2be6597a474f4e1dec85ac9d217066c28e26dbca323fc6a603905f","3ab6c0c7bbccec0808d1d442b237dd3d6c67c1204ad7ee8157ff1941d2480108","2ab91eb1b68c063582af5470bf507f3d0ab88443d81fc14ea89ee361beec4476","8ac575ace6a3d640b52cab5877b12dfd0231b274ec95374bb21fa18c9bdabf81","a2517bef0b76499007a01a17fdebf4241d32c825161f3a030e7af4d70f23df52","634d2be91479ee364267edd428e0d4b767a395338df1611ad1dd6483bb792eff","8dd3545839055f7d4fd148a3c52b8f00591fec4cff65bda0b272f8625df59986","bf08a7b70abd12d7b26586897b736d1c0404f066aa427e277708a875f0cb6bcb","06f94171d32c86f72a9e1d984f2a7c3fa7bd9f00a98eabaa3fbd7d57db71aaf2","e3714293de39ce3c6e3cb9d5ea7711343b19d2be532c75504682d8ef52e8f91e","2a462314156907e42d6f0d96eed96123f1d79516aef73ed189d9f5466556b638"]
Anchored
2026-09-21
Public log entry
search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash
d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"en","page":"theme:vaia/quality/en","quote":"It helps a lot with memorization","rating":5,"review_date":"2026-09-16","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 (e299bf38720a…), 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.