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 doesn't let you forget anything because it reminds you of previous concepts every so often.”
Google Play · 5/5 · 2026-03-06

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 2904877428

Proof data

Record hash (SHA-256): bf18261bf1a64fe5414b81e27275833eb00f0bb2fe8d18e330b2e54f59b14d51
Signature (Ed25519, base64): GWtuqb+XTBnF2cRh8OjdzVljjv5GVba6sbBQi0Txgev/7IqfFL8bCc2yNYIo19cZkC7By8L8noZyj2Cb9FRAAw==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["bf13fc77710135a1eeef0408aa5760ff9209374998014c096c889eabbcd7c507","7553b1443d79071e3d3cacd849e9b189cb5bcbdf733119560120a28c02e7add5","e52fcdd3a8e65bb2005bc802c5784223ef1ca1e4d15c968056182ddb4b4a57a5","0b3e4629682e12c6774ddd35b094d0b34298aa6b8dc16a2760da215fa2129823","4d43e7eafa0daae801695c208fb5cd9f5848bf7571b42b55d2d12ed78a74ac75","904f1544d5b8db78db00a2382c66778fe8d7add9360aaa1608bf10d57c1994ea","e870f24705aa044c2404e086f58842a157b2085acc1cd5ebbf356b769ced8db9","437edf1b6dbee9b9bd43880f55065796d1bfa665aa725a812c827fcdd166d159","8eec826c0eaf85458fab7a4ddd4da0aeb6fb1ca691f2dcbe1f66bf33de153d80","9e7d655ca6a7277695c2a69e3da04df8569357510dde3cd8a0597f7d884d3ada","c76744f61713b161c2df73a6eec773c0acb500654c459ab09b4f8ebb3ba40f92","1b051bf1ff36589fb2c3614b917f0b7f052e466f644868f148d61dc06ad499eb","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/communication/en","quote":"It doesn't let you forget anything because it reminds you of previous concepts every so often.","rating":5,"review_date":"2026-03-06","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 (e299bf38720a…), 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.