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.

“Ihre Website und App sind sehr ansprechend und einfach zu bedienen.”

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 3178115911

Proof data

Record hash (SHA-256)

4af9182452e96fe51b2b707063d21ffa7ee17e1392f0467f93862c2cf0ee84a6

Signature (Ed25519, base64)

9d33PME2mSmy8l1N4J8nX5ihKO9+9AR1Q8uy43DbJm2lC8ZLCeUM47zGJw3tNTrKUEQWXDWg2K8Xh1AHhWA2AQ==

Merkle root

afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b

Merkle path

["4af99e973476c86d8d590fd9fb7b8e533e4c316f2d122e555e1785d4bc2ed768","c9cff814a4f6846ac28a305110f8535a232694aff666ab137eee5c15e7938ce5","7eee91288fac8148106d7f9202ebbaab5a0d786c338efb9231765559be35809f","cb3cb7056d9fa7af89ee184dada5f3e06d64b53ac41adfffc7a29696bd0234d0","9371dcc8679f0e982223ea0045fac997fb269d40c68abc25b40ab4b1e56e3841","768b8bdd18b3d871af894a10eecb587d48c1d3133255f77490ebe025c8afa868","9a88be4fba2acc6c61e67db04449cfd8cd7f17394de2e9466b10e6b16427deca","ef19e12d5f1ef890618b66774efc80b553d6b4fbb1d8f985fa95fefc77c27d6e","d817bedff2809909d36713bf7f8a743b9e164f47ef44b7d6de72235eb338eb03","a944b2bed0dcb518ce8dc9378f31a852a1846c9219113f6b05ae412a94b8ba04","9f372f75569a18e4bb05d863077337355bb923165d334ee979313fcba831d207","ed12f30047dd4c3669ec0c51ddd1fe0336b8b598549b0f1447b25501a6c42fa5","cfc6855eeb5cd3bfbc64cd1a8365b676fdd5adf536ee2637beb35214ad734bd3","15ecb20ce6559654c94b8b858c027c014996a92eb19771813db0b794d6214fb6","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…

Expected log hash

a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","kind":"published-quote","locale":"de","page":"brand:atupri","quote":"Ihre Website und App sind sehr ansprechend und einfach zu bedienen.","rating":5,"review_date":"2025-01-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.atupri.myatupri","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (afb9ffbb4b4e…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.