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.

“Ich habe den Proton-Kundendienst kontaktiert und die Situation erklärt.”

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 2544236959

Proof data

Record hash (SHA-256)

109dc1b4fc6d61c8f5d461442c58787156a0f4e478d2f189a29098eb79541a34

Signature (Ed25519, base64)

K/G2wiEsRb30unLEPFf4E/JkQJfMrwJY0L6LnPEzUIzZ6FXp/FYMTUDt7SX2aBPuQttOU0M+y4fhaKH2Hb9ADA==

Merkle root

cc942239c46f13b1af6cdba0960a24a6cb62e7a7a462aae1e8126c0182dbffc3

Merkle path

["109c1e7eee5f3b9fda079334d97cd690c0230e72370d758a80bdf457fdd977ea","5270ae966617c32003485da7456728dc4e035cab0b69bdebc51038fc4c58a1c1","698c06f82d290f35b323695d17cdfd477263505823f79ada9626cd9470481cd6","3ecfdb370ea44ab4e5a391ce8da379c8492186c3bdfc0f22e0bb601a4a6cdc20","6790080d02ef87a30d2b0f0c94ea71f2603231f89ef5ae1470a47fd74f8f8f4f","926cc2d68b502fe4a08c08c81375af4b2c8a3be0fea0dc45b633f16caf531e76","235669f553d4f58807681b23ee097d102fbb0c70a1de0fa47d71ee8ed9587e2d","b2078271afc4965196e2ca7527504f1c6ddba412c6b37f58cd20c8db6db9010f","9669e3e272470fa23be829532d4dde26e3850f22d259a87b5569fef1f69a3bd2","64f5367554369602bdafe78c6137264d420bc038bd7b301ee269e77c337e072e","8e28ecae949842e6968d3e8cc7cfa46ecc015aaac02af57d21ca545064d469b6","ce148a613f994a846805895897725215688955ae601ca9f9f35f9ade9a27066c","29959b29034b6ed072468b5b39d5461625f307638700b9d566e817e6eed47120","f022ca67d84103ce2cdb199754ab60e49f2f04e17a257779049ad5591df59737","f25e568e6bd90a5619f6d6d975016290629a8afed06b80200730e4e12fb2d1bc"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2544236959 · entry 108e9186e8c5677a0341…

Expected log hash

c82e13ba2a716d66def44df55ff50c2e9db35da204570a7fd5650a8bc2702db2 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":"v1787290890795","kind":"published-quote","locale":"de","page":"subtheme:proton/service/support-reaktionszeit/de","quote":"Ich habe den Proton-Kundendienst kontaktiert und die Situation erklärt.","rating":1,"review_date":"2026-08-07","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a7636cd366de4153942bd88","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 (cc942239c46f…), 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.