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.

“you need to pay for the features you need”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
1b26310c51799f09130807a57f09b3f0ebf872007a23b6237d5beb24d2a4f3bd
Signature (Ed25519, base64)
stodfLuaGPHL+zet2C80vDifxCRTQ/qygbHbczWv+3kf+PLnAbteek99JLfocs9qrqqCm9rFerw/fLbrS4RAAg==
Merkle root
eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6
Merkle path
["1b27c9b217b1d0b6480a4ba9ff0bb5e04041a52e52f8cc2f6a88c91b65ff5235","54b4c7a84f31b7e466c768738cce9d5c8cd6d38c3467b2cc88cca70ace16a904","4c50a61553e0a58f9e83e82388327963bf93668089209d90b729c9346d136f67","f67b64505ec69e08d87bd6ce4dc9191ca70417e263024b5da309450e284ea8d3","e0d141add14829f86728fec1310b0ab51fed200a2e5493ee86cb67051fba38c1","8a2466cdef0ce681d58eba9bf3b1f1e12f4ad26a37f51a7c34e05ff25ea82610","5b9242c2a6c2794ac2e9c6d9f4dfe6d17f4e1461ba79f4146d48d928ad7e36fd","263f389bf79dea007842f1a7dadb1e6996ce579c153b9785e7b0a3973a035af6","667bf00ecdf23856cf04e1581f186e235ded541fa60f7c6bdd8001e71680f450","45a341dbf2b164e43cc9b834c112f624ad62804b3851b6da41d3dcf6d5edd2f7","64ea0a98d3502e2409bfab63314088d374e763408e939b5355b3196a90401df5","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":"you need to pay for the features you need","rating":3,"review_date":"2026-08-13","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 (eee462924587…), 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.