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.

“Der Abopreis ist hoch. 5028 Rupien pro Jahr.”

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 3668983302

Proof data

Record hash (SHA-256)

0272ba723576c665eeb2f54388936236a0ce4342e6100e88832ddd971f313466

Signature (Ed25519, base64)

V4MfO+UoAHRgaSZqC//zeXAI04MG+/x9OikZ6BcvRSBg/2C3Vo9AEHpV5b9Ds7/qKY4gJeR6Sg8Ayjwmw/6HBQ==

Merkle root

405d85333c1c03a7ae86f6b232380a3f0e8a386e4cd2c9bf5bd2480ae9ba2988

Merkle path

["026d75c41e549031a4348f65e7c53713bb9ff3a1d967f39d8d7067bc229d3ffa","7e9c03f80b846203491c2231aaa81bcd72ab648ca3fc76dd53679268adeb5155","91164a28edf6abc7bb2a41a1ea3bd7f761a8137c8cbe46e9e31a5a1012dc4103","11b2382d9a660cc05ed805114965aea2bf6b4ba82806832fe871771f41eb6daa","b80a38e15eafce265f7a3aed32d05893f2106d2403b1c88798d5f45684b4b587","c6ace107ea04e953d328eb29c12eb4450d1ea3194b61a6135450358cfa688a71","30e6a62353bb7a8e6c0d2001dc3da609b772a1f3878f27482fbe0994097f1f7d","41c48fb4e205331b802bbf9a3861d88d0d8ecbf1fccc0b472e44537a27e42e69","76e74f0fe8f494438f2b6b5a579630f164c7e6a7cdfd1afc580d018bb4a11dfb","53166ac6aa2d72eed2c595c332cae2572567bc4d29a0d413a0bb93a319bbf727","9042b1a9a265251aa85b8f7a8cb217e986d09163da8aee80a3bf1f89ce1ddc8f","786bb926eb6a5735d53cb29a06ff3e65b4d29ef8fd39d596873e263e6e08aa4b","19a71f7971408d12f874f3ea09b06e4f9b44cd26f6dbc08d0466f033f9881220"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668983302 · entry 108e9186e8c5677a323f…

Expected log hash

f9f0f1b08ea9ca6d951fb003d493c517d980826708a70b4fc99c8b9c98e286e6 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":"v1793707617662","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Der Abopreis ist hoch. 5028 Rupien pro Jahr.","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.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 (405d85333c1c…), 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.