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.

“eine Aussage richtig ist, die Antwort falsch aber richtig ist”
Google Play · 1/5 · 2026-09-09

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 3199173952

Proof data

Record hash (SHA-256): 4dafc8c39ed53ee556600409cd2176be3cda0923c2fcd25c1b9d186c7d62451c
Signature (Ed25519, base64): rjUeiUf9jnlhh1BllJnRinhJoQ6WxTk+rC/a9PPHhh9vvB5moHLdH6v2jyqySrtFWJpAdcSPp7arAJephsDODQ==
Merkle root: ffbc979c8901fdf55f43c5151768b18a738fc1c271c9b2dc97349c3fa8ed35d2
Merkle path: ["4dad85c5b80bb06abebae9169c72b2028e22e5ed84a6f1e2342d8fc588982b32","c029b620f4751c16b8dde593825d625133c351bfedcdb0d82ee01b090d0516a0","337d5b102687ee0f1698da939054fbe7e7c1b8aaecfca961d74f29a987b22386","e0de92b34b85bdbf6d245f6fceb017e52172175dd4cd4978bd8ef0a00ba66969","a7aaf2a7c1fc7fcf61512fc5b3e27e2b0336871d4e2cd3889a5cc94db6efc35d","7417943601b48a91d7a686bdf1c98eb7b09122d86a51664024a6a9579e803d0a","f686c08539b242875fa6c92bda9f1f63718237c3a2adde826a64d7af144b793f","df44ef16edde77c45d5f34e6e679b54a3a2b392223d98eca3c712f059a07ab2f","fce5b3b208bd7e6235cfb37c347fd8d296a5c5c7f279a394ce3474dd05230177","3f107b2807f170b6f35bf804fbd86ff43800e8d5e9922a17772f0651cfaa3772","88be0192ba1b13ed14317710751f2ad2f82b2e1f6f9c1ec81a0a8d8547ab4684","45fc2238455aa65e3b4c8344b94c4c6c999df482a430c903a8e0496e105cabba","fbdeba35a2e566aa48ec8885bea50296aae01205515c3657aa205e182ee9d5ff","2f35432083547a52411b4b8128ab118601abc6a6e158a38894add0923255dc0e"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199173952 · entry 108e9186e8c5677a85d2…
Expected log hash: 3bc66074c7b0a853326bf5ba0590a111eee6455dac5c98c791c22eeea9a48920 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":"v1791689192448","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"eine Aussage richtig ist, die Antwort falsch aber richtig ist","rating":1,"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

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (ffbc979c8901…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.