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.

“Sehr zuvorkommmmend”
Google Play · 5/5 · 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): 615d6654e738809d7c9cce93e30bab9c9cf1d113aa808f29a467f8df1d1e4245
Signature (Ed25519, base64): agEvjLpKrDs8iLLfFXhrD2vglER53PA01DdbKG8rUjyZhSS4JZCGk/2fDp2szw0ze7CDDIz9iMD6d6XEFkMBBA==
Merkle root: d8f145f4dd25b18e2b87daaf2aeaecbfc54faf99bd3bfdd8f74aa4efc5886bf6
Merkle path: ["615e7179a8fee5c328923af737a6e873249510a438ac07c17f4e95ee6a1826de","699064205635c8fb6b21752d36a4576ec9de0b55dcbf94cf3b42e07c4a4728f8","2382412c96b49967b3ed35942eab095e7f9ace86fd9c0af1e1d151ab10ea7aa1","7a6561a88bb2f56ab6b3cd505cde4ae1df4a8d7c695b68ce109765c8b5aad5b7","858c150011974ee8fa084c7b5ad83b2275c75b540dfafef6b0007f2bd9fbb6d5","1d6c067c66f1daded6c8864b4593236bd1c1f91442367ec84e92038f40f27905","92f44b0c99127f246c311105386e1d0d5d6968ccda8659a3cf7cf8ab910ca20a","23b500cca4591c98b1cb4a6b638bdff9c15c3c88996e2c418f4633392da3e999","129ca7dbc4fe96fe78c30c37bc96edf2e8b1254b7eb4b2f5e902d15189a4f6a6","c68d9b336454ee40e9bb5dbe65b3db7aa11556e0b05ec8adb27fac65375b7895","2745cdae0cb239cea6eb7495a6520e16c9cfa061bfcacc3f6cb5ca40cc47340c","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":"Sehr zuvorkommmmend","rating":5,"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.