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.

“Man kann nur 3 Nachrichten und ein Foto pro Chat senden”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
d27430e9633979f6252f06934c2d3046fd22920d61a799c546f1e914e7a15378
Signature (Ed25519, base64)
4dnam9+5U5ZusfYzSk0bng9P6L3w7le3JsXKt9i22REBSL1K91PC3+00OLuJUV4qjEQVZ/Afwffob7bV2sLfCg==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["d269834f35c2fc5758f57f08c7deb7bb99a15aa4de9f0225ef0696aef97c9df2","e3b1b8a0e7888b4f4cd2f116c7695485e01f30409604c874627f4d0abe07a1f4","e6fca1c254b7da61f9a6b3721448c5882ee40ad03da2351efa981b19be55e9b0","812599757c445d448cfcb6ad75998fb7bb6a020ee319c0c639f4573062e51be2","f6ad29bdde9a4b75d808748d669aed74039eef6cd79905d1d8a540a47b104d34","551827b1de84ae9096777d93dc907a63646be9973b51206ef91d2b8dcca3fc77","6feaa9437ae1fa91c689b2697627347bc312dd8aba30701c63b0b45c674bf103","e176f470deaecc0d3e1e1db1d4523106c74683f5a1dbc78e8aa2d926d88a1fb9","9c006a2b073439d25bb1f73f7096ac809057a45e9335bb63cc7b74772a781533","64af775fb7e27729ea2cc1b3c5d5f572e79919303ede1449f6a7f905276e5df5","8dd3545839055f7d4fd148a3c52b8f00591fec4cff65bda0b272f8625df59986","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/communication/de","quote":"Man kann nur 3 Nachrichten und ein Foto pro Chat senden","rating":1,"review_date":"2025-06-05","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.