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 guter/ausführlicher/freundlicher Support 👌🏻 (innerhalb eines Tages)”
Google Play · 4/5 · 2024-11-22

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 3162767972

Proof data

Record hash (SHA-256): 218dc5cf8a22fc761ed64855b547e6d19d964848943a417b5fcd3f273d545ae2
Signature (Ed25519, base64): 0z7cM38dqoLp52xqoz2eUW8BoyuBzmvUdQydYRz/TSioBh6Mdb7olNE1bABNHPNv95qZ49lRUwWsw4Jd++8wDA==
Merkle root: ea9653d48be6468e8b38c47d968f49528ccd17e229f6df41b5fdcfc232720ce1
Merkle path: ["218ea1af5843978226744c3ba2fc3d85dfa71c7f10af7d388e75255f74256522","425626bca757f6568b6c48df818dad55244003d7687ba18e8213f75e94bcc2d6","57bc279bf632fbddd0665aab3f7402ea0a566fb8d0465aad5623b06bbf71c6d4","b6f6999178eabe861a204892201da4be1d14b65bb091fb66df43832082acbb96","380cdbb853b089ca27d861e669325b940b3f325fef71df9c38122f88b3582809","2215423eea62deef2173c52e8385b7cd35bdfa01b2b5de96d8a58a8f20594710","e55a8215223ad2ad0e518a136f5d555ce799a68594524b166ae88e1673828b38","528bec5c2601b625a1326504a6a9996062fb33e3b0fdceb599321749043ff8f2","32696a4bf197f5a87d4dfa97dd6a5ae0b6e3ff41e33252d56c3ce30e1ed69355","7d675657701f973341f57e41f606f6c9181968788462880699765351cd1f4bf0","b3d24f1d485eb31f67983e8448b9007b3580341c636d7fc910a97ab8873d9e5d","9253fa4f5bb69c032cde6a50eb05a9214fda55ede5998b0ed751c72bcace6cf3","6cd34e3dfbc2bb436f1bb9314162b2979f7ca90ac38686f80fc39acf8dc29914","ce40f5d4a6c2a1f06b7e5ce375094f8c75556b02f37cd3d94ca98fa0a38a1e5e","142248530d485121153c09b780e08c6af592fdb4c333042d3cdd9e4160c6db55"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162767972 · entry 108e9186e8c5677a40b3…
Expected log hash: ea8f60b663262eef5ec0ce5a9fbc0ace913092ea47c37bdc70ac392578ea0c35 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":"v1791541525227","kind":"published-quote","locale":"de","page":"brand:threema","quote":"sehr guter/ausführlicher/freundlicher Support 👌🏻 (innerhalb eines Tages)","rating":4,"review_date":"2024-11-22","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","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 (ea9653d48be6…), 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.