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.

“Guter E-Mail-Anbieter.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
08dc92a46d7e132f7d298f1161706585b2b0b4d8ca1e10c558487d4e95a7451b
Signature (Ed25519, base64)
ujQVhFZIUVql8IggBV4z73YyF6uYfL4fnTqMDCJzZY7l8jlnRtULL/XUtMizJetO9Ue792O7IJO487kTJ/QQCA==
Merkle root
f8b4f722de05d6805a889681c3818dbde0f5141f0c8463f2762c4a9a02d66a2e
Merkle path
["08d6f545ab34b5817ff5055a3a9dc7f5728bd7879f9113bfec054799f2db6fa0","a71c43a2abfaf3a1e184d72dffb1b5576f61cd53370854fc59e96c43a11390ad","817fb305284f87fc32b2df55db6f9b48032eb9788afcc7fd8a5a3b3671c973fc","fca373fdbc09a10cf2ae65d192cccb8804981710899fc6351beff18664dc45b0","51d19a49da575afb87f1f6ed93d76c63ffb83137f2e229becdd43b1dd4c73de6","2055c85a91c7faaa3ea9ec2be147fc78805f453b02922b3fe4a7118b67185cc3","437a124b8f545ec6ff94ab8d52d9e7e0eed99fd0eb2923d88640d9c3b0829f77","c481d90c4dd6779fa88f2f44710bf71da6aeaba85135608e824e2ea45f8f91e1","6a630fa358fa02f86b52ce64ee65957ebd285d58de02674b83dd86606f79fb4e","7700fc07b19bb2aa16f11a8b94974e9b9ba33fd9fae5d96aa0ed88db134947fd","6d8c836ad510c47531d2203326951d62b53cf7589f51f1e6198684bc9a2a5ff2","f01f1a88016d2021c5a10200fdb43dc229a8703904477e2e0791d78a57d84700","826328db0053b998cfac0c22cd6c575c128ecfa4f75e9fd73febd75c9f8ee792","fd074f6b5b50b116ac3330a06f290a8ebec7ed1849b30507ad6694033af6e1ff","1d6688e1c2658422e04ab99dfb5c8345ecb419dd1f8c6994b4040572f5b4ee4d"]
Anchored
2026-08-20
Public log entry
search.sigstore.dev, log index 2524422814 · entry 108e9186e8c5677a9741…
Expected log hash
e042bf60ab37eb8951abb7a408cc8c7483ec875b9606253deec7a67967130ae2 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":"v1787192294432","kind":"published-quote","locale":"de","page":"product:proton/proton-mail/de","quote":"Guter E-Mail-Anbieter.","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","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 (f8b4f722de05…), 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.