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 vergisst nichts, da man regelmäßig an frühere Konzepte erinnert wird.”
Google Play · 5/5 · 2026-03-06

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): b248c53c41c7a713bed793b874ddad79f62fd63104e473c59f52ddee10732bf7
Signature (Ed25519, base64): LaMY8p4CxOQyC5FT4gMWYuGkz3X7N7c0rmAMZVw8Ev+H4x3JKfoQOoUNMnOTX0sx40HRehGoUBIzIDTyjE6+Bw==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["b2458a78f2614fb3c8a0921b5bba5008f2f50d27cc3544527d110f502fb53c4f","6a2f1e04bda9ddaf0006e98fb64db54b6bd8635cc2d2067535c7263f4bf148ce","508865a99f5d32d4bc74dd9abed8d18574f4ae0bf4d4f9c3732cbc0314d877a4","5be48510011094c4d413728d33d16b65746bc2da4dfcafd224995286fdad0a37","26be9e7732c01a282f0a97037385df7570f3db99883d63df53fe87403e9aa206","dee96fd8ee9a8ea52e5aa7d644eca16293f093a9091aeadee54f7a72875cd9e9","cf7814bcdaba817da9ac56b5db299e3244ebcffb4750c39ece6de107d4eb41ef","55f43fb61ba6e36a5b43913339670fee86d21128d37cdbcc85c3e13c33ac28d0","1c631459a03859c2a8f16891e1efa88336cc5e0a6303fd95cdf572d0365bc99b","620413bf2476cd28d325605187d6aaba277996d6475a9bac38fff50da78fe34d","c5b7e137a8013a4a21c1d5b67afcd303b0734422cc0c2253880dfe8a42a53397","6c2612f525e9372e44b0deeb0737e4e68d621df2f62b7144b07119251a9b517c","b5d03b72964f911025dbd61c2eea673598b47768b7619e9a279966a44a138147","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 vergisst nichts, da man regelmäßig an frühere Konzepte erinnert wird.","rating":5,"review_date":"2026-03-06","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.