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.

“Threema funktioniert immer super”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
64d77bf313ce99e007c3ddf0f06313e6fefaa75d3ba081aa6d516b744050f9ef
Signature (Ed25519, base64)
NRIoGz0tu3+o2PlHu5WsNno0Ju2B3s/mjn3fLN8dONQ+X3UuQmStuv0upULT72IkuKG0Djpnjl2a0/TdsaaBBw==
Merkle root
62390602d5b1801b2c96dd61074fd5810278db65461e368ee19c9bb147d249dc
Merkle path
["64d4e63c6a2ce2443b6c339c31f26a3dd39d91fc2ee22a3d3490f0b9854e02b0","17b4eaa200e1dca0ab83e8139d19509567d32491dbb5aef74968d091bc628043","16eb3dc2e74b22c225a83ced1388d193de63b5e8ea64f3867660752031210784","9a54300e584694c3da37eb8d0a8bd45a4ada458dfd9ffe50c1eb9416e93c043d","beb1afc34de0d74d9f1e7e484846c94a7afe157da821d1a44853fad62b725cc9","074faf97f2c0d90950848403cd5384e1b1e82d77c0a70ed21f0e75013be69a8f","9ef78b22a06e7153d86aeae98e45a952fbe6d00d2ff99aa4cac074212c1afc2f","f55d24fa4bf782021ad822ae7fd17259e81e6e4718826a830c0cd8737b00feae","d68761447dff9d90d4db442ee71e66ce2051c324337396ac421870d174e3ddf6","bc8bf56776142307c1ca7d3a3513b38ec141d77afae8de425352c55c260786dc","f0c371e3549c31ccccf5de55acf0cb3bdeb258801c4d15f1bce6c1d6c854da0f","b0dc0c20548098133de3f9452c9e18550b81c81910057c978f584db23dcbfca8","a5b0f88103dec63c80bc1707eab835572838fff5f43aed265827460436ca21e9","baf7c3a9a57269bbb0661385ae981f5f3219ae8da84a7502572e283df3bc7435","9092fce07a46a5708f071a70ba5ae2d3ebe27de5e813ea1756180e7747d7c5d9"]
Anchored
2026-08-19
Public log entry
search.sigstore.dev, log index 2515033577 · entry 108e9186e8c5677aaea6…
Expected log hash
458ac564101d02a2c8a5f98465ce4e920300682f0855e017234ab870c48a16cf 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":"v1787135948936","kind":"published-quote","locale":"de","page":"theme:threema/fit/de","quote":"Threema funktioniert immer super","rating":4,"review_date":"2025-07-05","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id578665578?see-all=reviews","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 (62390602d5b1…), 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.