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.

“Smallpdf ist eine großartige Website, bitte weiter so.”

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 2681429093

Proof data

Record hash (SHA-256)

05ee80817e96a24b74964623ce9d3da18665b01051a2cc12ff9f3f5b5bbc9c90

Signature (Ed25519, base64)

GNr8qyeoqB7iVDgQmu55GpbZKB6hNjpYXgWi/SFXdlKnvjrihR3b+3/hFauQYvUmy9LirSSjpM/sdk+9GgWHDA==

Merkle root

49d75a7972dad7fc75a734f764cdbbaa106268e1ea0f657aa8c6fd89424d4b2f

Merkle path

["05e9ac39493cd683c15db1ff167c518972cd24776089c730641f1678696f5b1f","ef12fe0a3e5a1943527c438fc332ffe01462c4039fa7700e7b327f7797e7eea6","52cd18a1fad1f4b7ada089cd3d518ca0cdef88e2922cfd20ae535f757027f7d5","960c6da69e9e2169ce671228b5036ca8ad9bd315aeb503b932597b4be18d8872","89a9b8a5e0cce14fb95ba1457e7b38cda0ba1e267c55b148c15f97d05ba4c512","42a3f6a1be7f52d6b32bcaa84bfffa39cd20c98962cb946ea7e1fdc5de19f2cc","13d38cf360ab7e89c4759f58e454af7a9eb2cd7e23ea56c24c5a7860da8440f8","bc2f117e3de9505b0d4f4a5e0a95aad041027b405c9fe84b88077acf52ab9295","7db38d30d9b6279e7ac968258987878287e701e4c91779b2c4b0fa190a7c5482","fc172dd3a8ec9a1de4590436e1ad8557af4b53d08596f247169ed4de669236a2","3e66c9aa593abd6d31a4550e5f3f86a8b21154101d738f82e8be072e185a07f6","9ad764adb090606813af8d981e25ae04fb555663f4dd61ecaf358a138629116f","f930e87d5846215d9d33cbd2f684fd0788c4b25eadd845d1575c3bc708e059cc","79d6c858c8d60d7d4fdeb98d50012f464859bd3437e8887f9a62b641664e5493","75fe8695ca709a884269711b05fbdac24cc3f8930abb9087723ce2c8cfa8fe2d"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681429093 · entry 108e9186e8c5677a81cf…

Expected log hash

89c17d1b707f92667072f2c7dc2ae2ebf8b7354f0952f06862b4ec01440c148c 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":"v1788303366831","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Smallpdf ist eine großartige Website, bitte weiter so.","rating":5,"review_date":"2026-08-08","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a770288bbfee3c2f5b620c9","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 (49d75a7972da…), 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.