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 gestern für ein Jahr bezahlt”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
958bc3c01736b225c480b030742942656cf608c63bf1544fe9f8651027538ae1
Signature (Ed25519, base64)
w8zaxlAQVtSTCOYN5WkEuejPxc3SfDwnnIJdOHvLKiEHnd9kjPDxeM80tIvm7CLAszH99RwBzlCXAV2raLK7BA==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["958bdd93c81d3ca96ce52e2ba921b167764a0fe558892d3197c17743449b3878","45548aee855c2537f870610ecd237a8c2d0292a342dd33ad816c6965908873ee","8fd878c7a692d53f8856c1ef48451c4e71c4df632d459d0da9f713b0f040bde5","761932ef0b0278551b69ead3f8467eaae9f9298228f239600e45e7f13c034be1","a07161854137ba8c7b218f2c326edf9b4000107e5a60697cca1186172f58d68d","fbf18b63585f079015212aceef50923bd9870e0f4a78386154aa796560419b5b","d89e1e72888d6dd8a72fe3a278cd2d087fe8433c4eb2244005033d8d10ffd2ae","215686fc4695d2a872d5c9c1f768afef25e9b507a2532071d900cd986302c5ba","3e43710d5a589e0614b4165c616563cb62232965ba047d55cbd1bdd463a401a1","1a8d9e567730bcac77332919af77c31fb7a261eeff68bdd4a9900a8fbddef61b","808361c2cc11d1d62da97f81cb8537cc3a8a9e7c2b553285d63cecf18a95be4f","81ae0d98613af401743ec4987802323d53d8fda24ce374cdf2d369d04f6e8e3d","b5d03b72964f911025dbd61c2eea673598b47768b7619e9a279966a44a138147","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/billing/de","quote":"Ich habe gestern für ein Jahr bezahlt","rating":1,"review_date":"2026-05-22","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.