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.

“When I want to type text, a white screen appears”

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 3198797320

Proof data

Record hash (SHA-256)

30520c4519a801013c92894746ace4d770515baffac811b79fd155b529e05141

Signature (Ed25519, base64)

fFl7klqbcuwLEnPaGq5f1Y3HlFz9CotGS/vlbtPF2p2zzCp5MHd1m+cRFoNrBtJabDVbnLLnr4C8ziBZuoN3AA==

Merkle root

199738dc68b66dcf66f6b0cc77e2cba74c3bfda88989684620837b4c4e64818e

Merkle path

["30526ca9fcaf1d3ff542c7110dc2ef34879103f82e49e8ecbe7b6d55cb1ba9ca","5a3da8c0cda579aed7af3020dc4e63a601fe33187dd8ad86e3a523a06b255f8c","8fcae00b9b652ebad97010e34e3bd6af0d317b66ce802da0717b530d93156009","6bb93e3c8d65a953d00ce8ce485519f77cb4711108bd1a151398c883a3e02f5f","76d37d3523134e1cf22ee7afd612a6eb869a4fba1f73cae9fbb6123d084c82f4","f186451bb2cffec037cb5b0bcdd0cc0f351b5a89922dbc4d151d7a8efcd281d0","73cbf44a2434e98cb0f772c9c563297bd872e8ebc5dc9ada8715d9fdc4ac3619","6655f5afc193910a4e88b8a8bd7f5cc667ad967ec154e0d100d00a46ec26f2ec","eb46d8b43d26e448bdd2e7bbe35f3198e734a729f41352dca410348f3df54e59","79f13fa08f4f4d94b0856df28308c6bd6ca190e923a2bdc1e440c71770ed400d","770097384447aa79bc7b7c42d7dc9398e6d7e7f587567b7d51c58ee89c64c1e7","c2efc19050cd51016477281115d61ba0bc460759f5adf7f1bbe5ac7cd5d2bcae","89c2d1ad10f8da8a1ced326bfbd1f55882866fd705571bc337258b3314dad42f","ddc8a66e59fc8f0934334cf08e419f621290129e658cbc58d8ec27bafd90b0af"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3198797320 · entry 108e9186e8c5677a14ba…

Expected log hash

46227e67415cdf5b62c43420eb8b7a80b35acaa912410c2711787f678b77c9c9 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":"v1791687727006","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"When I want to type text, a white screen appears","rating":1,"review_date":"2026-07-25","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 (199738dc68b6…), 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.