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 versucht, eine E-Mail an den Proton-Support zu senden, aber die Empfängeradresse war ungültig!”

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 2647580424

Proof data

Record hash (SHA-256)

0c5de596847399ce2203de85aaed883bcf0cd1ded54be308e71492a2187a3771

Signature (Ed25519, base64)

zstW8Uq9xUDdjNDhmdvzSb+bxNjtVZSVJNtwTfnEZ5UlHJElnXob1flqCkYhtgJXbb81mE1THnSL2CpLSCrZDQ==

Merkle root

11cd275e1b8f31daf4151030cd5fc67eec90cc1b73d6c3abd8966dac0ea44663

Merkle path

["0c5903c874a55cf78b949f5b8016d5a178ccce9d4ee3c72cf3e69332eabea94d","541baa22e6d9ada415c4e19ec5803ea863dd61ddcda60016aa6d664aa92470c5","b6b853e5161187e7b8cc85aa65f54fdb89ce57a1d38efaf05cb19e657026e510","f7ed199fe88eb5a63d5a053384d25599ff2c26d9790201026beb05999193ed80","f9f3a36c67d73410d5cb9287c026a4436d59f21511d520fb8d7e31214b7a8530","2d3af287ca2006154c0401dfacaff5e93f0953cc6381efdd420162d0c4737cdf","64d99177e3fe65a30edacaacad77db073ca26b07020f3160f21c34428cbc7c4c","61d3081793e42bb31392d6b1f38d60830eb5f721cc04130ac88c1af31bb1cccb","4ba415ad0a79aa7c80aa284c925d5d01fb4c3da2b4944283adfcd96e31442fd7","e50275b50dc551670d74281af5ca62d385d86999d176fd3872b6c78918d9c06a","1195c4bb2d4e7df81076e3dd28f8afbbd0cb78d96d4424f0790cf25fd02134c7","15ef754b0ec11f0bcfb1882f47ccca6fc7a2c7ee673bd9ce3c5a3082d34781db","3012f7a2838d04f2071073f8ac34932376b18c2cc8805b9bec98ec1dc2d08a95","b9f2345d92694d25bd0490f4a3b26a3b973fef20d27569c442482b8bf63cf733","29dd516ceb1cd9fcda9711678cb72a0ee0864d72432066fb0af064f01b46c0cc"]

Anchored

2026-08-30

Public log entry

search.sigstore.dev, log index 2647580424 · entry 108e9186e8c5677a331a…

Expected log hash

29924cde6f1b08ef8102d24e7b21fea7f81e6b89af990cb81e380cc325864e7d 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":"v1788064620038","kind":"published-quote","locale":"de","page":"theme:proton/communication/de","quote":"Ich habe versucht, eine E-Mail an den Proton-Support zu senden, aber die Empfängeradresse war ungültig!","rating":1,"review_date":"2026-07-27","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a6771cba00b98fe70dbd64c","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 (11cd275e1b8f…), 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.