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 mag auch die Lernerinnerungen, da ich dazu neige, Dinge aufzuschieben.”
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): 4283d2d01de77c1ea41f9d70a989fbed83f3e8d09d2ab8b95ed5fef84bd54e02
Signature (Ed25519, base64): 5J1U8nKWtb+BionqyyU37wDOyXiz4HPgp/sEmM8L0Aai2wz5mzmbdSsRwxAcqIYXAwV032B/BuMfh8pPct5WBg==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["42842eee182f148e14e96d2c79c64209a7f6b10923988b580b315d6640b3a782","2c415dab78ab2b225c289b0f9d9d21949922d4374019df6f35cc94ef1e6a7b3f","a7a70517174014d5b2752c723c8ec252c68a4570d0081673d10bb396d8c70ec3","6ba42734e01d5a1045f92728b4ab2af062ba411c2e6233fa324666ae60f8c233","c874a8c0a03bb12f1171ff30d2ac66866be727370b4e46adb86aaf9d9738c5b0","1f3614659ac85c89d2a90110780e6518f762518645c0bff9ab0a7b69ed421f6b","54f8117a058cefcd4cf7c10e1d96dee650e2817e46e86d9123337a228c732361","7c18d892b796791ae366ecf197aa5f6d238c101db3eeb51db4eb303e243ef5e1","3b63f0cab57899c892d338e5315ad74dfa3ad0452248c91cd637ae793b30dba8","c80fc408040ccf3290c4de2119701b168b84212d2e324fe71212b15a64aedacb","15f2fad90dc8311e9265dc984e03cfa8427141500b294337071539027bdad228","f61ec008da9cedb952cfe797489f2f8391c0dd3d9db879feb9a9aa5b68ebbac5","b296372665f7c3838922f5e4d88b25d49437a77f990ac53d0dda027dc9495fe8","2e838893ef313b8ef0f87568e1e691fc197dfcee84413640a12968493decac73","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/communication/de","quote":"Ich mag auch die Lernerinnerungen, da ich dazu neige, Dinge aufzuschieben.","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.