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.

“Nach dem letzten Update lassen sich Links in E-Mails nicht mehr öffnen.”
Google Play · 1/5 · 2026-08-12

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 2582604655

Proof data

Record hash (SHA-256): 177002af00484ee8e592af45f7d1d2315cdb8caafaddeb4b5f5ce1ed8db7cc5b
Signature (Ed25519, base64): ptHhaWj9Z91qSCJKWGVG1HWaI+wiBD0oR83mdqsCaXk0lBaCkrtks/ya55Uv2pnLfoWyaK0iH7dBxZmaXR2lBQ==
Merkle root: ce02f748e6331cd02eca8f57641bb910cfa3ac6a0583f19c214186c96cd0e8be
Merkle path: ["1772232901f339ffd2c34553608f12af6dda461d308d847b80fee5dfaefa4d95","ce0c272d2ec06210172d2c5abb04f26157d9c0f96a5fa02aefb052a3f8bae596","b58556ed45bffdeb44afd37bc44092ea87a35989f0bf9242cd0291b34f33198c","9ea06e16f07583bc7b90e03be9f11b47c82dda81f57edd3bf20c2aa2a4cb4865","4c8f051e89dd3daf90b7233298444002303ec094199e40cb1dbf801577c46fa5","306829b8d7217c059e5fb84a9f3de2816a8e9de8ee3b2d528594cef66801708e","12b8b5319ff9571063f605c987bef4fe19d5a4e73f05bf93f52c0a205e3002c8","8a8262cbd0baa1ad494ff40a34e793bcfa461d95137fe358baffb8097d6fbbec","8cbab008ca3c7c66d2db08c06208d3c1aaa2f8b80e7b4ffba5ba455956986669","c90d5523b670336100002203f3545196c45ba5ea069fcb703f4b24fd8b6762a7","da644d555e538c7c981ba2b58b54008d76800b41edb7fde9e57f8a4eddc673bb","b32c84383744c57b015abb43fa1400023699589bbec65b98d5d9a1020542c84c","2ca5fec314a169184d28bce72e10be4d0dc96e78ea6b0fcf500eb6558685fbf8","1bc99d2925512f6c847da60b09ad8a40a192f29b50aac2ed7ad1b460e9e23fc9","8475fb82080060bd6fa491c94e8e1c5001264fbf6fc66e6998631ee565101bbb"]
Anchored: 2026-08-25
Public log entry: search.sigstore.dev, log index 2582604655 · entry 108e9186e8c5677ad979…
Expected log hash: 3437b01b95be42f034b7198b6d5e9c0aa9b5bd388493d56323aa647d6d8ff38c 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":"v1787626024249","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Nach dem letzten Update lassen sich Links in E-Mails nicht mehr öffnen.","rating":1,"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

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 (ce02f748e633…), 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.