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 says form 10 pages it will create 50 flashcards while it only creates 10-30 max”

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 3240231023

Proof data

Record hash (SHA-256)

415edc914923794000756e9f80542d55a6c23dd2f00b2dcf42fc2565ff63218a

Signature (Ed25519, base64)

B8q6sKC53fpIEEeVudvfvw5pa0rWYZiWFibI48YtlEsfhyWMoEs4umi40hCcRd6ro8ZFFFPnVNwgXGZuajnTAA==

Merkle root

888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84

Merkle path

["41597c04a0b594b107f66cdeb998e4dbd50ac7a7e5d2e0237a95ffd5887dc0f3","ed69ce7cfcaa0a9169a9e551420cc26dabec113353ed70e31a7227e7a7901022","b7a7d53d6a846d496d288833975e9c64563210f0dfecc4ac1fffb1eef8e6331d","227f22d6edbd32fed5e609a8eb97fbf3335d0e52253dbf68d97af31d60993e9b","379d78cb692d568860f8f886c90bf0518d5b160f6bce51cc1b1ca7dac5072a1f","e3bd1411a44b06019be0319b26d71fa30e2ad4243f70e741f8aad7fc47a3a52f","c59eedd1b8a9a0e4e2246a15981224b014af6fe58a3fc2dae543a10947fb5a59","26dfd818e83d757e5e7225d26e546f7158e0a5403240437e7a817bbfb018d710","52d1e1fe2fa29cf428e9b2f33262cd961577934516986e3c6658856cfa8b0806","430d470e02f3bb75826f2b4861db67d1d24c3ce14285b0c1be6f059a28c52ec4","98b53817122fc86b6561e134e40b506483d29662f54858e04123e9f55ec0106c","cfcf82b47bc6a006b7c11e5183fbaa666e00ea4d950e64e1f574bdafde8e1583","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…

Expected log hash

bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 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":"v1791860805798","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"it says form 10 pages it will create 50 flashcards while it only creates 10-30 max","rating":3,"review_date":"2025-11-13","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 (888a38c73939…), 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.