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.

“Das Einzige ist, dass ich mir wünschen würde, dass der Zugriff auf Community-Materialien für alle möglich wäre.”
Google Play · 5/5 · 2026-08-02

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 2904877428

Proof data

Record hash (SHA-256): 8e6f89e0c606256b643e1280636461e8a9b2e8d2d89a66fbd925d6266b375ee0
Signature (Ed25519, base64): DJTLqjlFaL29OPR+MqQUCwUxylplBGIrqT+al75dUjZT/Hx4LoQbXeDLQUWk/2PNAplIcf6apBD2SF8TQl94Bw==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["8e6d9491181a40d81ad8f792caa9bef674942204982ccc970ea1164e080c12bb","8745198f53f3dfadddc907520481bb248912db9e06427d761b5ea7b0b1bfac70","49e1ab795f8e5cd3038d4e9b0fb8c4ebc4ebb533fa6b285c33ce85ca1a40bfcb","5b6e47f0e73c53b42deeb3ebf2eeba75008f7aab5590f9b20ab1f56e95a9ef73","cd765f5fdafc606d36125fcbb17bc473880696fc0407cbe716fe7508adf734f1","cb211b2a4ff6501adde0ce31d44d1f83501e2a73931e03a0fece0ba3e730b558","2e81eb54353240247f891f0bd2a7d2087179a885661debfaa474335bbd45993e","5f3da8b4ba73ea687eac521a4426d39318d2f2f5e60c8a1f86510190db980d5f","3d81e34dc24982360504b539e466cdb720296df965c5141d5bb949cf654f0c0e","39e0541676b1b5f08764015169838aa7ed6eaea7e123a116d8ba1e7e5b3b2e4d","3ffdc1ad653f39c0429787d5c91bba35366ff0cac1e131f271cc3308cb191be9","9c56efa7498f22733bd81d9e1a9aa96f7fa30f782f3e2c5dc658ff683f136fda","3fdd31064998e61048d534909957bf68a4f9bbe35571f6d185756d8acc2a5420","aa4bbeb87247c2797626ab02a549451da6dfce4dcb854a36fdcc601e3e788772","bce5d442c07de6307e5ea8947098e74ce88c2246eda5e5fc1015a6d7519228a8"]
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/service/de","quote":"Das Einzige ist, dass ich mir wünschen würde, dass der Zugriff auf Community-Materialien für alle möglich wäre.","rating":5,"review_date":"2026-08-02","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 (e299bf38720a…), 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.