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.

“Für einen kostenpflichtigen Dienst ist das erbärmlich.”

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 2683258276

Proof data

Record hash (SHA-256)

02742306bbf6418792e75b8114380739d76b3590641421c85640e86f3c044944

Signature (Ed25519, base64)

Ju5ZypcCT3Q6Zb0plDfY56m3/cQ3wH7Gvq1EFrtou5/D3eiQX2Lty9FhqKbuIUywwoJn2i1xo93DzNG3pBzFDQ==

Merkle root

1b4480a4fbb367e76fd34ca26880b5c46171f974cf3a94f9b036b42e01723c56

Merkle path

["027974ed3e0d16058c43bed7d201c06b78a20a1e7f7c7dfc9f7799d882cab9bc","3adc28b9ac3486f19af5866c265ef9743a65e9c34ea421fcd2c0c42c9870cd91","93b86f84941f6259d8fd5751d0de0bc4d4e37dd8f06eac9904e7e2d62d571a41","81a85f9b2ada1f0a386f1feb4fee0f76fc5e0b94f32c3f3fd71a37347a613fd2","ef2d4be93ed569192cb13579f29040c8783d8deabacb89dcf6372d61c0f12284","f6aa8534a33c21ed5e3b00e3eea0c938a71f367a7a6b492694082a07e8583398","57b2c09209331ef8392fd754aa76e14ff3dfacf1213e3710dba197367ace729c","359d82335d964482d10eb726d72ab3fb06a0c7fc0b0c465e0ed76422eb55a015","a83df201da518fa0357b66ac13a6a2ef9730a8487975a0a5fd12a9285045094d","d6076041f271e450fa4180bbf80d31d531771fb50e9f5ad175d81c09bba547d2","e0c283b47b543f455078cc097dcd3f294f75eeb92aa7e8444fca284f767c0f73","e87d3f640108f36247b0815e0b898eeec6b0102410dfc0c66c6f5f34b114e4e9","9bb9face21b64dc4548596d6f0fe4cf67321749c83227ee93ed882f3aa170652","e7218144e850bd19a6bceecc50f33cdd16123e2542b211b07ffe285b3602d2d5","26c4d515b1da79ddf02519980ecbc6a7fec0326ec612e5f075735f461991082a"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2683258276 · entry 108e9186e8c5677a44df…

Expected log hash

eeb02f3fc88cc5ba2c672023b294d6863b311c6353fa3c9c8dfe9c0b1e584208 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":"v1788322016973","kind":"published-quote","locale":"de","page":"theme:proton/price/de","quote":"Für einen kostenpflichtigen Dienst ist das erbärmlich.","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

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 (1b4480a4fbb3…), 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.