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.

“Technik aus dem Mittelalter!”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
4a7657ca025e6e8a23c382ae4878128aa192c23eb413993b69ca8f115f6f780e
Signature (Ed25519, base64)
MA4WE2d/uOOfgniTIieeH/Nd29bBmHZwh9Er1iDbgR9bbVqS8NZN+Sy2QJftUHV8qnm31+YtuPK9EJlS0I2LAg==
Merkle root
2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path
["4a78734eee4185b568c8a8a5bb60011256162bc5e207be2d4fc3097546cdfe91","b9909e0b9832798fc901d11184d819fb8aaadb36e4cc02d2d6ebb6d5e589a45a","285964078ecb2850bc120b6c60c7b1a7efb4de81c818aa7f07f676c1829e0925","16bfd623f4937bb25f7c824399e6468134c14bb62ecdc2429b6fe323f89b0d81","c4d181746d3b64db515443e655f7af7d6530dfec2253ce071066aa0a52a5fc56","a70aeae461052bff115ee360ace039e3c6ace3c132f991702d6cc5eccc71b3f0","ed8a7c2edd824f45f13075454ee2caeab27c11be09043e151334810c8352f04a","6673ed76daf4378c410b3e4283ad1f59e0c08d7cd8fe226083b1627ef06de1fc","b219c23bc24afed10de066a29f8d673c6e08da86fcbd1a8ddaaa5803b285834a","67a83b1125288e9dd0ec516ff73b9cf38ac9427a76ec268c7e87305492f09285","cc8eb8c110ad6bfe15d65752a33499baacb1799054e70cec984d4c86cc084a38","ddad24b033c054e618d3abbc2cd0303f49551ff001beb238cabbc4b73bc7d951","d1960e2348cd4a71c41d10f1fdeb248b829ec3849e0b1a948157b58e7b767ef1","f2c4543851e26fd9d1e3721e592d66b00f142e537786e975d115c14b9cb61c0e","98191c82333f4385e47f318835e01d44ca8835262c6d0df40edfd5f6a4dc5c19"]
Anchored
2026-09-20
Public log entry
search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…
Expected log hash
90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"de","page":"theme:atupri/quality/de","quote":"Technik aus dem Mittelalter!","rating":1,"review_date":"2025-09-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.atupri.myatupri","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 (2f068f3de56b…), 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.