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 3139760477

Proof data

Record hash (SHA-256): a5cbdf97bfa38b7c2ccadbd0b14516cbf4338c9ec96c9ef8b990df8f5d3a0566
Signature (Ed25519, base64): bQzlxnRL3CBh1hdm7GJHKV9PDROe3GABRjLyA1yUWye4dpJ4xUibgSuQlyJa4u16XoBcbwc20HcTGe3cAU68Bw==
Merkle root: 49133e6803d24035baa1544a5c730db93dbaf832df48f680ca855944337404a2
Merkle path: ["a5cd5fc4b443e155468f6ebe3c379975a0e5bbd8aeab918749410e49be1ec97a","460a8e534b21ae77460fd244cdfe69bd546825fd92feae2a8b717b0f68d4c974","7a5c06863cc8c5ca873852b0f0ba0e216f8fea82e0cb576bb3694dbb5307b08d","e65b4dbd38bc977e6a5a0a11305047cd5755a050809beed0f1450c7105a8bbeb","cf58d8b9738457b54584fc59070ae7e5deec00e5a56877ee6a501a4b77c40522","a1dd0516818fadddfa849ede2364960a8e3a342b2d11b4b7f13e658417bbf9b0","9c4bc94bb9f32902929d00cd7cb5494520fa80d89de5831b4c4f0f380dcec279","501ae5b23c122f8cde9d3c0eaba27f3b791d894c3c4142d3bcecc4bd43508b51","e90f87435dc9707c1e89545c9694ddc5692e9ed6ef273be6344400eb738d70bb","735bdd190ec237b432e93e4f11a3773e93e7c857a61dd20f239814704d195c27","b952cee95e1c92206073c0b02682660d7812d51f0ff51a4c5a54d477380adee4","62cb3735bc78d2fba60e7ea9cd1bfed3f29a37011e58101dbfac3a4028d86eb7","64f6e44d0d153cb01fbba011c770c85da4e2899c81c01e95d009474dc99d3150","541a456de48928931fac4c28e56562983bd2f8cd0c9306116286df2e2f1c9422","d81f506ca96dea712a8b56759200b270fc625cf496d323ded3475eaafeb2d916"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3139760477 · entry 108e9186e8c5677ac88a…
Expected log hash: d54b6e5e20903e9be29e6a5973227ee9b3dbe61bdc0fa6481a5788472cd5976c 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":"v1791428432986","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 (49133e6803d2…), 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.