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.

“Es ist einfach zu bedienen”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
283a163b6fdd691e8b87591dedc17984beaf07feafeba6e4b34fa3c13ac237b3
Signature (Ed25519, base64)
eWmAzL86Cc4gm90Jsti0ChxJfTC0KTOZLN2FCmftnKi+/srxFIjaayfLUKfKWJg6Vk3ayMDhvxYxS5nSYwsCAg==
Merkle root
4591ccf5fcdb01ed421243d02df5f30203ce391c077d4ade1ff5ee97e69e252d
Merkle path
["2839a47c18de1b40defcc85ebf454916752e8badaf6d0f4cb1027d58172d141d","4d23915520189fbfd00746b9e331f4c3eb2525fc7e9ee89395b82504a468bf1d","41b6fd12313289af0a302722927d00a5a4efd155e3752a27aedba84437a2009e","ecf64d5bbaa2cf1b2226871c9eb3dcda48b852f718da63ff2449de5c7d84ebad","d0c3fa19fcbc8667f70bf7eb3c11958dcc953134d3f985429b1091d996198f68","6e29781e44eff542817e7217a2001afce42a0bb240b2a5f3891ed075dc0c2106","9c13afcceca6195143a15d2d86a31731ed5b9294a6290c0f7a541fc7df42840a","ffaa7c4ffc9e7dd59673b454cc871c2ec814e3e896a587c7740451fe5b4f6b24","9181469868182fc718ccb30b3bd902cf38164efdf1172e65f44536013cd51766","46eb24f739b389806d6838c3d9c97c0dc973020538e6ebf11b7e6766d62a8d09","76248b44b9ad9d60e7f57955141277233f0834109c44c736c126c5e9ab5f3075","152c0493178cf6b4404f105673ebfb1205dcd47946cf0dc7bed8ccf29e922fd8","d52611af45c7ef524ab63e970b046a1061f8173af77bce3332bb854291964d99","04789af0aae7a52bbc7d5e129e675a1c89df82999aa606ccdd23b89f718c4ff3"]
Anchored
2026-10-16
Public log entry
search.sigstore.dev, log index 3273084324 · entry 108e9186e8c5677a4edd…
Expected log hash
52df3e0fd214b96d6c701f5f337408916b7566fa39826e2404f759c290be1eab 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":"v1792120358245","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"Es ist einfach zu bedienen","rating":4,"review_date":"2026-09-09","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 (4591ccf5fcdb…), 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.