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.

“Seit 2 Tagen gesperrt”
Google Play · 2/5 · 2026-10-13

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 3668944551

Proof data

Record hash (SHA-256): 6492b6e2babb2a63c6b0c134b310f3ac1bc54b0a63ba7efe8f8c99a3709b91e4
Signature (Ed25519, base64): CBrEyFYd4RAYb//Xfu3pkhhpyaxTSGNDZWf1IoTpiumW121j91Ydubkj4VqAGqUjQ7+7FGR5bT+e3w3yyL2qAg==
Merkle root: d8f145f4dd25b18e2b87daaf2aeaecbfc54faf99bd3bfdd8f74aa4efc5886bf6
Merkle path: ["6492367ed9e46177848001fa8dd10f01a08e45690e34535cfbefdc315e09d1f4","b4c584499319bbc11127f31cd11bad46eca129d0474671ab45ed8feb25638509","6e6769b2161176c5cc91d77807afc82c2fdbdfe625a1011e975641b340ffae45","f6f9d932d05c4fb04f296655997e8d3dbcfcc6921682b5e81c60935b6d993091","148e65dce971e4bf7c9354596579a93d51531632486d3f85ac741dbacd76da85","09cb03e0e791ad1d4b079d186960d633cbdf2bfeff7364650dc7d91bd08e4dc7","46c8d2beecfd802bf0728d9fe06d9c7c6326a2f4bed888b72616fbd217831a2c","d82f362f889c3780953e7b8960defae812ada9b0a9565abcd14e5035ada20bde","fdb6e672a8ec59d3d99c2ad0d4ced8076539a4f09a5f94c09545fb7c7c661933","1afa516b80499ce142430de2e0ea8fe7e4378f9f5c890f872b93fb8c9359ef5b","4c6abfa77c5c07c8549c64faad9e5f826920dd7ab1f635c05c3f37b8b4fc70bb","408bcb479c81e40aa011fca1108758c0cd8113715612daf389f9a0abf9c27953","4a105e509823ad7c5361d9c34172b0c0d78481a597dbc352d26fbf6361d15520"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3668944551 · entry 108e9186e8c5677a0e24…
Expected log hash: 29b4e6eadc957394341c639515bb23b43b99093d34033c988619822df54fe84a 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":"v1793707472796","kind":"published-quote","locale":"de","page":"brand:concordia","quote":"Seit 2 Tagen gesperrt","rating":2,"review_date":"2026-10-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (d8f145f4dd25…), 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.