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.

“OCR funktioniert nur mit max. 10 Seiten pro Durchlauf”
Google Play · 2/5 · 2026-04-11

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 2460081835

Proof data

Record hash (SHA-256): 0a908c2ebc8b201fb9fc52c01a408ca0f19095fabf07d9455509e05efbbcf407
Signature (Ed25519, base64): 5klewTnhfeSbAnXs5OiuCFaapgpgqnn0PVgC7ZaYcAalGsSIM1CETwolW5xp/OMFCUxrgak/eDVVkk9kUsk3BQ==
Merkle root: 693b3142de1a19894d0451eaac41455e1d3aa37919b3ae5e2edff2f233caa80c
Merkle path: ["0a99db23503aa7ddf9fd47cd3939ae05fa4ba4bdca5417a5d57b47120612e286","4d4eaa981aadb6a749eb8f1e2dce7a0e41cc20f6f1a5c1a6cb1ec461a997b455","3a5a13a1bed4edc589859e35925036ffeff2639bdf733cd77862559a59e82695","e1dbda6cee3ba09c16546274f0f1df6e1ff1092f160d221222f01305c0f6c944","85e56123a63982ca0f72788e77dd6cb57e3c5a7dac1c1397d82a06e00b35d0cc","361a61110dafaba3d43f9ead93a67ab34eda0400d1fb4903524c79e72352cc56","84353db69878e928f6cd6011e000ff707bfe761e28f0c99da524d6947433d2cc","f745a49be2d2d08c089fc87dae870c226c923f9fc63aa53ed78dccc590e2c920","e68bda3f30eacd7bcbb951578195112d4ef5a70abcafbabd70f142c2c01bd78f","7fd10a3b94f4dd45b14d1d7cd59e636d1e0ece5093d2248c92a12d131da7a954","0c4631667bb5856cd8a29b65662046a77e34f6c7ef94c74546fe8eb30c390170","2bb5e88471e976da7fc6b14da8977d2732c138a8cd16bb7a6a524af5ca4d85b9","820e91ce7b2fab163d9b115a0fad694ae18ddfcdb351eafb21c56652b7db54f3","da05b4f5e60707f1d2bd0d32dd4c2b8ea5e4409e0de9f3b91b43f6e1fbc24293"]
Anchored: 2026-08-14
Public log entry: search.sigstore.dev, log index 2460081835 · entry 108e9186e8c5677ac4f5…
Expected log hash: f3b8925aaf484fe1112884ceeca2778886407b26d173d2f69563f9491621f073 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":"v1786676915924","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"OCR funktioniert nur mit max. 10 Seiten pro Durchlauf","rating":2,"review_date":"2026-04-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (693b3142de1a…), 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.