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.

“Gute Versicherung.”
Google Play · 5/5 · 2025-01-18

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 3273402563

Proof data

Record hash (SHA-256): 733faff72546b793f2051973c19f84833a00247de1adb8acfa7f71e3a7038335
Signature (Ed25519, base64): Nev/lWywbPVzqKtpTJeF/oTQjp2Z6JQz+80aE/9zIZqRrUI5WyzKfsSnMfe7s4Zxj1bPx3KSaS6OhHQJIQ6OCA==
Merkle root: f157206eaf0681e32c282b6c87b482d5b05edc0371242c4555dfe07a805d46ee
Merkle path: ["73494d5dba3b74548274cae24df0e2fe949f082befe7ba5e5254897bc014f369","15b92383a8ea41ca44a28b51ac91ce4f12f28de415f70da2f92e036fe87fcf8b","9a72fcf94f096fcf9f05bf8df807090f2cc32538a1a2db815c4177d953d6e4f3","bf851df960c8f597bb0158e6067e745b77d40178eefd8a5f091c96d986e812b0","31274de7be3893da870673aaf657d8d97172b5630c674bb3f1802b2781c10426","800ff968f050d2e53033c8c8a06d932d17f810fac535272b990eeadea8f3d211","dd3640a85936ad1852f2f91d264e85d9e496ccaecc4c6ef2282e863e5043d03b","e54b40b58a46ad0ed0139073c7af1844d12545d0106f73c34d9a46771ff39dca","28aed5000064bd1cc196bbeddada36ad4ed753c24345cc5490028d5dca1d9e50","bf620f03c0bc52a3cee1c19175dc2d8ebc28dfcbc70e57f2efd72940dda8a5c5","e2d5588a1c570a207f77ae6b6e42eae1465d4799cf7dd7c185a4df0ee6f106a0","0ec3997da78c0441022b4f7641654cce724991e23e156dc83ab76349fc3b21c7","bdbf26617ed72bcc7e854dd2503d7cef77faeb2b6efa03dd28139f11ff6e93b6","72cec015fa128b419dcf741d3ca687936e9595c259ab78dfd4256d8340270e61"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273402563 · entry 108e9186e8c5677a6df5…
Expected log hash: d39be9954db9139b182dabecbcfa2b9510337ba2b23ae56a3f9ebed18578385c 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":"v1792122859337","kind":"published-quote","locale":"de","page":"brand:atupri","quote":"Gute Versicherung.","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

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 (f157206eaf06…), 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.