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.

“Sie ist einfach und funktioniert.”

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 2682517241

Proof data

Record hash (SHA-256)

0b99e8b467a05dc1c527932002a595f19da7bb54d3525d98a8a1f71a1365332b

Signature (Ed25519, base64)

eAh9zv43Z1SuypTdr2zosC7qo9Cwlzfz0lIcS9i5U0oAa64YWPkz3wRNCfOeBLYE5+r17EM388yfzazhp42yAA==

Merkle root

c280d9ed12ff4c0b3255dc7898b16f1930cd4119f42946bcb4cd68d076a2b332

Merkle path

["0b993555f1efbd339a87761c46483f3dbd6126ea55b30137aed9dd2097abc3a6","2be613b6e01bea33d81bad65b1618b5c35ce6d63e013337161a0d9aca017e1b7","35cd8601685c335c47bc6b0722b84504112954b6427f7d8736392ce04601545d","96eca2f8fc77aa095c91cbaa413cff9e9e2bb87d25d0013269192ccd877bad61","a0f296b0181a239755df811377d3c42b5f85cdc22dc4f9bde02c182011eeefcf","6167123a5f6898665436d64df77466fdb65b23054f9dd0429f09263f88aa1963","b989c4d3b0963421bcc646d5b17f8cd06b176bc556b78fc93b17f0a1bf2ccc09","0d3b6b3a11b02806eacaf1a6764e5c33ac5e73578c6142167a39622fe0d92ca8","6e2d99bb24cb267b59599f3c25a55d212602f5fce90588438cb0f09733ef3e3c","f9cd9e88bc8e1ba647b06620c7265ab939e9ae0d60bd3d2d1a6ee3c22261ad72","e3a79915a3879ad8716dc470587747d333f9915bb4463272f8889d94bc3cf160","472a46e5ff22ef13f95849371f5e56cbe4eff8ebf99e8a0d25beb8257d4ebede","420b89a5765bf5e1ee3ca525653a85d95f68d0a5f95e1e3aa883275c5f706eff","1bb9d77697b03c52c52f610920bf29cd71b9d55ec5c24ed66e499e51e9290526","318e458e36dfc92952cbf790d510c87679554507275d835c305b6eafec626494"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2682517241 · entry 108e9186e8c5677ae940…

Expected log hash

4dd627b405b5e14bbbc331be73be3f78a12bcfd7daf600ed87868080d5d2f664 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":"v1788316240490","kind":"published-quote","locale":"de","page":"product:proton/proton-authenticator/de","quote":"Sie ist einfach und funktioniert.","rating":5,"review_date":"2026-08-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (c280d9ed12ff…), 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.