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.

“For me, it's the perfect solution for learning, refreshing, and 'preserving' vocabulary.”
Google Play · 5/5 · 2026-09-14

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 3178600936

Proof data

Record hash (SHA-256): 08387d4476678a91de4550bad74e2bd0a12ce9da7a3785fe520454b862060580
Signature (Ed25519, base64): BbUyBRDA2BbKiP6r1NEU50pfBBTAUGBtKEWX5hZ7UFxYXXr1GrTFgb0xgApEJ3MRT387LRfZWNVuV0u0xaSCCw==
Merkle root: eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6
Merkle path: ["083272a35297a40afa72b4bb0a6e7defe2e1a4e8c957b02045baa2aabce88854","4a7f3103369cb52bb6d07633993ae4402fa177f85cd24c6098b9ecc3eb10a7e7","246928507ca8b77450b9bf38b55c919fcdb2007cbeb65613235e8db37feb374f","f95d6462f6df0bd955e92a7e4199d5ef482849ae9c6cae199ba705f90102f2ea","eb8cae120ee7995da4be7fec1bbd0376355927868dd5573a72be14f6b069e6ed","98655f6b198291f0239461f10fc3cb0921e34aaf97e61b7da00e8436e2637b96","8f9b9b03fca636a770ef8500eb92de86a2a2b7d35ef0832013dbd2bbcb6aece6","71a3669d18e81a4913dec03f48e841faf2666cdc650029f67d05aedeb5be6602","a05deebda4d3ce9c5b0510f91a4e9d474203bbb9b1cb23d7cb44c97b62cd1bb9","20a37ccf641831a9cde6391a8767c719e3b5eb50763e7c22c62ef827dc8a1f46","ce5bfcf324b9314a59d413c765341b50971426d3ef6ecaba0e4b20b7996d48e2","9a818f1045e037b5c81556d7f6ec6165a24143565f78e16f2e84828d0670eecc","2671ebca141255a0c11a3bc51354d8cd008634f7e59a58a3f3f9dc756141bb9c","a445a39a48770a8fbc5d87a405ed660d401fa810eac6fbd1d284a96f8c7d5503","452f4fcbca19997a15e6a6869c50e026ff02cb90a6ef21da106ee0457e55941a"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3178600936 · entry 108e9186e8c5677a6a91…
Expected log hash: f3dccf508afcb5e89d56dabc8c5aead85de215b1b896d057d463ea1c1bdb13a3 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":"v1791606586319","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"For me, it's the perfect solution for learning, refreshing, and 'preserving' vocabulary.","rating":5,"review_date":"2026-09-14","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 (eee462924587…), 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.