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.

“Ich habe den Support direkt kontaktiert und um eine Rückerstattung gebeten”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
cdb6a58640b237f2f155b8de031d067796e7ca6c4f64a343c647c0003ac0b4aa
Signature (Ed25519, base64)
OBHr6E6YbAuEU1briSgMDRu4X5mD9Tm/2mLCvpYPJDFshQulze7vDoyrBGIZM75um9zMJWpTH90C4JqWD8vbDg==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["cdb712f6b47b2a4b6a13b70c8aeaac3e67ec2283edcd590c44aa984375731e58","da8d1d146670bc81e158e1d9a7545411b436c1ddafcfd559c7a976dd2bf5f5e0","5964a76cb1956a0cdaeb9510fbf149c30cfa4436ac8b32d4fb2396ff2194cff8","189a472d2f674d61812dd99aede13b17fd352f26032e18e9a19f68f4321c15b3","e0ed06b494b2cb68b3a0222720d5e2ee71e86fb34143e9492f4a4817688beeb2","253bf7f9c410a27104d8095bd718865ee8a77e77e6e87748107c04bc978cf450","dbb4fbb3acd96eea740cce2b26980240e658ad60f1402fccc55214ad7dbe5a66","f715f4663b8cb9c4292524493e0094eb416e2ffe915ad85c1a7f886be3c357cf","1e07398ae3ef901f9485f82e2568661efd83a8677c9b25a837d2af5846a0cf7a","610534309bbd1bfa5793fabc1254f8e9ff0f3706e20effd4937239e7376cad5d","f88be881ea062cb0d1c908f07c2bc25877d657079958d9ee97dfeb71a5747da7","bf08a7b70abd12d7b26586897b736d1c0404f066aa427e277708a875f0cb6bcb","06f94171d32c86f72a9e1d984f2a7c3fa7bd9f00a98eabaa3fbd7d57db71aaf2","e3714293de39ce3c6e3cb9d5ea7711343b19d2be532c75504682d8ef52e8f91e","2a462314156907e42d6f0d96eed96123f1d79516aef73ed189d9f5466556b638"]
Anchored
2026-09-21
Public log entry
search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash
d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"de","page":"theme:vaia/returns/de","quote":"Ich habe den Support direkt kontaktiert und um eine Rückerstattung gebeten","rating":1,"review_date":"2026-06-23","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 (e299bf38720a…), 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.