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.

“Bisher bin ich begeistert.”

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 3668680919

Proof data

Record hash (SHA-256)

041b2a8f88490ef009e064435525274b2fd05b842f932cfda469ce09759abbe0

Signature (Ed25519, base64)

uNAKNB6Dc1MgSvlg84FW6/oqIpvzWaSFxC/7kAUFvYtTWlaXVR262X6U/zAcdzAYG1SycbYgb2RSNUW0tYM0Cw==

Merkle root

2722cbf3688f456d398c2c349c50045e96cda26d0251a390f403bba716d64c3b

Merkle path

["041959a8f8984ce10eb44f5303674ff259d463a1464d20d5ae8ac2d5893bab42","c0b0cbe522512f3f29c58017901e8eae423bbd0530547c2da210764d3cfd6f4a","815211c941a71bd2bb2ccbb185d086722cb7fc8fac8b01e508c57d82a7f55544","79959a25126aa6ca3d4f10edf84de8fa3feac5f3e99fdeb58fe67c08c740edf7","7a7b480bb6e1f15058439ddd92a6b0abb5ed0ce77f4ef4e54a6c134064051a00","0868253f34638edb84c6b115caec06cd0434a67b25ef159770aac708ef3b960d","4bfee312c841959038377f9aa9f1268508aa809599d6cf72298d7152eb5659d2","9ff1173e0be055d036042ecbe9bd8a279f08054c5bbb64eeadc9e4bf4e6df6a7","6bbe70bb44757ba876a3bf52aa7968a437d49b7ef6fb30ce36cb80aabe207cb2","e371b4e731cfddd5e7d5600b642cff649fad0301124bf7b072b7d623903ac5cc","4af332339a39e6ea76d62ed99c46c31598919e13693263cf6d909d061d8efddb","937ccf716598c310ad94912d78036fdd767f36111c011e345664249121f46a8f","e17aefbd7b422ad270c6969478edd518eb38d3eedab10292a53aa045165a0e2f"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668680919 · entry 108e9186e8c5677a7c55…

Expected log hash

b9da8ea83055b2674fdcca0c2d48e6dc1984e46d36af8cf72ce2f4d2b7fd0005 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":"v1793706705310","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Bisher bin ich begeistert.","rating":5,"review_date":"2026-10-28","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6ae1e5beeaf6d51895e6f336","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 (2722cbf3688f…), 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.