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.

“their email client! It's responsive, easy to use and offers all features you can wish for in an email client on Android”
Google Play · 5/5 · 2026-07-11

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 2647332298

Proof data

Record hash (SHA-256): 09a53cf8ea1d4eb4dc6a4e9c6b655d3d16b2c690aefdf6c31d49580a83696885
Signature (Ed25519, base64): GVP8cUNza9H1YdAdttZIhLaCKdiftNDCX5z1JD5cY5qm1PG9Chx6lcDq3Q16VUp43utGC4zkIxvRBUGiMDesBw==
Merkle root: f91c744e1108c1bb1ec3259bf4dd752db9e3b06ce3ca7c817c48f3174bb949cd
Merkle path: ["09a81e196cd96f2e631b1b1a158232da10d6de3b0f44a58db6882e58ecb5f6ad","5d316d08ea3819b068b1bf64eb903ef471766ef3953919acc00033a29a04f142","5507bacfc971af5250774c6df175ab74d254db41f16bfc7a017c326bd6036bc9","16a84032eac122c975f8027bc10a3d00af4a3528b2164d014941b29c7e130ef9","e0015932f865b9fe8d81d69d31fe3414150aa779fd4cbc780d8dd6c13158b9da","e2ec89936de384ced75713e695041e5287563e4db39c05b0912036bccde5a4c9","313e2460f211776afaf294c4326d6cd1dd10d089968ece6ab0371732d2988c58","53ddade3fa9446880586fa3518c79affb158abf9f37769723a89ff5f351beb7c","320e1417884086c619cd1327972b712e70dd5ea0068f845099b1489f93e1d3cd","d14d66e890e664038908607a81a4d79583af65449987a2f251e93aa94f836d68","58fc9ab3597281cc64768b39e32e077189527a6136d373d70c6f7a67696a9613","e2f14ae6121f38aaa4982e551914713979fc1b85e0916996d36fb727a77cdd06","38add9619d9f1ac1a688809de34787d9c7d7b4d2116d16ab225a1d2f875ff278","939bb6f35c7a9334365aa0f05d437301f5b11fd1649b761216a467d624b12d5a","7e33dd613a6ba5c13ea4ace578351ca5e0375312f966275d25485ca016b59318"]
Anchored: 2026-08-30
Public log entry: search.sigstore.dev, log index 2647332298 · entry 108e9186e8c5677ab309…
Expected log hash: 5d995478a14ac45f67e2121505e769136cf509c045e6701e0235a25f639d0a15 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":"v1788058735671","kind":"published-quote","locale":"de","page":"subtheme:infomaniak/quality/benutzeroberflaeche/de","quote":"their email client! It's responsive, easy to use and offers all features you can wish for in an email client on Android","rating":5,"review_date":"2026-07-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.infomaniak.mail","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 (f91c744e1108…), 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.