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.

“The app's scan function is absolutely amazing.”
Google Play · 5/5 · 2025-10-18

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 3162293789

Proof data

Record hash (SHA-256): 01fb17f7c1bf8b9ea0eb327ed19c25e0bde4dc5063ced52a3eb65131a7be7c82
Signature (Ed25519, base64): JeV6t55jqB+IE7X6jUzWPdSV7naBL+1RF6tySzzYHmS8bcKdonOdisxaN2ApgV+54/v9V/qGikvnFNyHGNfIDQ==
Merkle root: ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78
Merkle path: ["01ff81f340e1de82f3f0560ee2900b213d597a10d44e67cc49ea376355ed0863","6f97ad8f8beda212b30819569348d1a3cb12e828ff4ad4b90f649b44b5f37797","c0a9e2de0f6594f657db3e531f9b16644d5632852fcd1bcfd7f059b593d43872","bb515fa5bb5d54022a145e36cab7fb166de3e165a72e4c447c9734bf1cad6ea8","c1d23effa1a30b3273f70fc08c6b90c4f6b78040ff34ddda7adcadf69594d1d4","8ec528da2330978370827ec10ae189b3f7eee734de344188df99746bbacff106","c4302243b145d75cd3203abd3602444bb64944d0e132cb2b4f7eddb4f19e1503","770b8874c5ea4fce0dc61b9d18580d5421cd8a0f8a372467b81ac654b25f05b5","49f11e688ef8dedf5c0d16472e95676a77525f825e46590b45d0176860c92ecc","6d303fd2ce764d2cfa52a4b80a7f7f88c24b3cf95da10a1c14bc5a33ae2235c1","c05c95777d267c19c11a7321f727d98146b8abc20dc2b7086dcbe43b27c7245e","cc82dcedf1803fb9cd4fbf2969503996cb7816723bd49062350004454130bee0","b5d1a48b6642f5e918335ff168c322a90c6461c94c3bda6ded76ea663842f62f","6b7938d0463f2b633e195d7021170023360849e40ff5e64ffe0633d28e084f81","90ac6c76618b09f3702b50a6410c80828bbcb4ead0d9d85dda294a654717f483"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162293789 · entry 108e9186e8c5677af0ef…
Expected log hash: 49c1b9c7cf9c0180248092c94f6cb48d5e59f6c65f471decaa61f120e90874ce 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":"v1791539611981","kind":"published-quote","locale":"en","page":"brand:sevdesk","quote":"The app's scan function is absolutely amazing.","rating":5,"review_date":"2025-10-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.sevdesk.sevdeskgo","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 (ab8d4de5853e…), 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.