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.

“Danke für die Antwort auf meine Bewertung.”

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)

0bf7a9ba0710184a414c6daac930cb42d3385dcc27abf3bfde1ad27717353fa6

Signature (Ed25519, base64)

tg999nBx+5Uuxn1YZ6oBgpSOpZYQ/JxlkQiCj2jcYfSZ3e5IKTv1O9V8ZKKn0CRZ8eRbb/FFfMlINRk1nA44DQ==

Merkle root

cc942239c46f13b1af6cdba0960a24a6cb62e7a7a462aae1e8126c0182dbffc3

Merkle path

["0bf19b76beae43d65b0d16823d26f262fc0787f59c8b647f5ff8dae996362c8a","2778146900877c93f14aa4f2e9daf2a49e4ace44105e43f3c21b9dd59cacf99d","389316936764a53eec491e1274d4cdf27e03a849654efe89aaeea79b117e3f40","633fbfce3877b949750ed21ac2b9b1ad6a844e708e9f5eaae9937d080a603e22","6624be8826fe072a8bef6b4854a3b6233ccdd2a530b18de2dbe3b3c10a2c9ad6","bbbcacef380b7847940351f1d179250efcd97aed19a69229aed74a9e657425a5","10fbbf37b49358b66caa25857c6eb6f1bcb66fc06fa4e8c247ce06d5cef0ca68","2dd9d8b5e2a7973aa3ce5a74528f1c3c7d0cf551a6a29ec8f30be95fd17e2c68","61d6691c398157f5f825619d176e12b535eac632c25db2e8339567db5ae6a1bf","29cd417eeb527907adba3d77d4b0449d459f8c65ba8d0f4da38a95e5af5b5091","155deec12fe587e9d76545163e0a3ba9641db96dc9f375612c8edae799667237","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":"theme:proton/communication/de","quote":"Danke für die Antwort auf meine Bewertung.","rating":5,"review_date":"2026-07-29","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 (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.