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 is super easy to use.”
Google Play · 5/5 · 2026-04-05

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): 66b251678bc8331dd6afd835b3a6c099f626d66e0918e63238ea7e25a01c9161
Signature (Ed25519, base64): MZzqQy1hLaeKKK0VgvmGi44UdsAK4hPR4XVPxiLa5Mw2r0bEKGdsJIi+/ZR+kWGW80r+fOca+qnk5RssZ/0gCQ==
Merkle root: eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6
Merkle path: ["66af76dba60ae695df22d8c5b84685f0ca25832d079047e05b7fef9f8ca9919b","b37a28f61efaea1e2a73e2c58ddd08b97219b32823bebc46b16932ec7aed162d","a378a7c59823aa442ba232b60bf83b11b907342b607f8cdb38c673826e5d298c","92bd7a13ac74d9ccc40604dedcabf0f4a2567dbf7dded075399b9f2230e4abc8","b6f7218e24659af921621cdc8a2968623f453b57a7af7e61bfa8e2359c990df6","d9a93ba1a994e75c9b6e68abd765dc3568ef19fda958b54a74a72bf34b565fda","1b72af4ecf5029d9e221964ffff32448447244b9ac68b07185e802a72f2258c0","124c2b13989b4abba1795a142059a68f77eee47a6dde93e85f3c8eb4073ad25f","ef380c11050c3590aa904d74734102c044e89845276c687534c314707aa592d1","b37f2ff807fb8148ea7c5a55ee959a0b8d28ace1565b6326ddf364f3374fbda3","5fe4503b3307f13de42c732826bc151cd940707824ee79beda6f9ffa1d08a4b4","5b1894dfcb750cb74de963040bda8c5d7aae8b006db7bf1f2400cd4c8a13bad1","2a2a0e0a04556444a1f3e56af70f8f7d735501b2d557278ab2ea5948d291f4ab","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":"It is super easy to use.","rating":5,"review_date":"2026-04-05","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.