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.

“Eine super einfache Open-Source-App.”

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 2611694692

Proof data

Record hash (SHA-256)

09a65491976d75790156e4661a7619be578091f96e181732758821787af6ab40

Signature (Ed25519, base64)

3U4JuM7iCVLfMLE07Q/nii8RGqW8pzkRr6v5wXZc9fMwZJMfLR8+mAUrPtDE2dG/GZgu9uwxv9tY4EkR23aLDA==

Merkle root

bdbf351c9ce626213a7937b083c4ac066820b0192efeebf285f31c724e7c7386

Merkle path

["09a6620ba39865b0198fae4a801bcfa084b2d9c534a5eff059ccad37fca4306e","da356295b088846c9d21c6a51d1428b30962cf14580cd0e9cc02260d45effe4c","ecc936912423416d841dd9f59dc9f570c218801b06726d41caf301fc804f1128","a9107392fdc41eaf53edd344c78d833dfda1c9415ddb108d4447707727f963fc","686fbbd51ee459c4218bedd573fe578f73f1829a67c97b9a2ed2c7659bb97078","5f01dc145eb648e71a1144457910ebac22e35f1d4245e6ffa89b62ec6f4a8698","f864d5f8eba89a353864d4a7b6618ec4b48dc75502dbaaf657e8cd1532d3c6e0","eead7b3f97c79f5d83a967b1b6f9d7bfd1e5c0d82ed52163f412cbdb15f66691","67198a9a7d5356431ed80578b5660da036e86abc0609759227c4ac6446b0ef67","9420687e62118fc59a34a303bb48c41dd2a94b5f95179207522c773d45f7041b","4298f4ccd6a24c4930f743455de3930d5a766b0340789d6f496f97f6c48b63df","ed0847d04ab049e21d5f1209b43d9db4f9d0aa8b87c3438b7bdd9107f7128c2d","73428a6555103c20fb5ea743b73a12642caa27a1cad4c3aeec7f2fe71e2bad2d","8c4971ed811477bb80cd783319a321eb7e74e629d6c92773766b417396748f8e","4ffd3e6ce61b4807f2bbaabc5ea992d56be24a3e1b0106159ebe9c57df57e830"]

Anchored

2026-08-27

Public log entry

search.sigstore.dev, log index 2611694692 · entry 108e9186e8c5677a584f…

Expected log hash

e78df4d3c8e2db621642a45dcf6ea56f33edf489d8662048cde27bc12924afda 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":"v1787755965154","kind":"published-quote","locale":"de","page":"product:proton/proton-authenticator/de","quote":"Eine super einfache Open-Source-App.","rating":5,"review_date":"2026-08-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (bdbf351c9ce6…), 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.