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.

“I was switched to the premium plan even though I never requested it.”

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)

6bd41ffd5e719bb09db1c9509be7b54f99eecd6fd7a2bb90154b61a393531bae

Signature (Ed25519, base64)

ASi+ZFFQFljUKqs/ttgvUkL8AklkvYxm6chPBAMDPtljR9zeogOYvMlVpa80fgwAkrjAkxCv/3XdMiyJyR+oCg==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["6bd77b13a62f131822e68ab438043205c15e7f1359417c8557800bea3dc206f4","72103dcdfb6a9fa592ec9a16f71242a3477bb9673fcef18c4c4b6c6f23936c04","ab3670db520359dc6a7919c449fc5d9fa0dbb390651ce9117134d481bdb13c6c","cad402486ad4428046194fbd5cc483efbea0645587cbf5b818c2fd4a53e5008d","971ba983d815918498db91e17241276626e71096af33e42b41ad969860241ce9","cc51002d1ee28e59a02cdbbb78cdac8c50fe0659637621d67459924e159291df","edef36254d93387f0d50ce1b2a20340a2fd01191fa010679f469ed0a599bd478","1445abe341b3578be3b426a427e50d2a515c056bff2217883f869bfe42e81622","c83d44e5a491e95552ac9d009c9c358d222d41f3cbbd49b2a2c976e018404dc7","489843fbf13bade3864db2315aea5f10e3bf841daa78ab414bb425b102864af2","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":"I was switched to the premium plan even though I never requested it.","rating":1,"review_date":"2026-07-15","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.