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.

“es senkt nur die Dateigröße”

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 2682182715

Proof data

Record hash (SHA-256)

0af75fda90a6c021c10d55bab4af0018247196a4e5b262301f304c09192806e0

Signature (Ed25519, base64)

iKFcMLutMZIMyjcUqviL3PAS5wTnkql35D3n0OI83JAPKp8sYlbB1LphYa5rOhgh45sRRhYtrqFZoOS7i/auBA==

Merkle root

a98b50e535ae53279e8516802157b424d2a2bd6800d1c251ba60d9a742aeac5c

Merkle path

["0afbbce641fada2cf9e1b1c489eb84719542fc0a51271838b4bf05aa25a60191","5ddcf191dff707ade53c2d67fa9f2b10f97cabb37c363b8cddbd2ce5c71e3a09","cb85df6f40f1757fd0f6cbfbd0c6c50a5a1a686dfe0972b140578234ac9e5243","d6e683b7187d6e6f631339f72577be8986de12fd8d5d40e54bb4f38089820887","4e7867c880ebab02c21f4c45923a58dce0b15d9f194c82a28985766957d80375","3e1c8b9567a8d716bfd7afaae95231e12da3d3e4cd1aec8e7ff2cbba0248c169","2bc6f4df8814ceeb1840eebf5b1bc138687f94ceb19e5085f25ce328b318e877","6c6338763daff54989785d6b32047ada4d2ecd1c68fe02403e82789bdfc75398","a34571624d77c3b19fa39134356f272f6480b0ec6ce72f04a37e74f64d8d34a7","9044e8695c1d26c9ff5bec825a59cd07af61b11aea469f5bbaccaa74490eafff","106d40972bd241bfa4b51104a70feb42ef6cd4ff180d3dafa337cef17dc0dbe9","20524de8ff4267e2b0776624f09fe5480f9fe33a5239ddc15c15fd75e63758fd","4ee196375d66e09aaa8a05a79329d68c3a50100c830835060402aa8d235d95c6","71a4426d4276c0c224a382ee3cdc207a0a9d5ddfd42ee86b341203278911461f","86fbf391c95a64b4edce12edb659c77256c72926a279d6981a94152c2bc26607"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2682182715 · entry 108e9186e8c5677a8f73…

Expected log hash

50527829b2727ec3ff54bbc04509435e1aad57a1b8911c437a05134629a261f1 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":"v1788314008672","kind":"published-quote","locale":"de","page":"product:smallpdf/compress-pdf/de","quote":"es senkt nur die Dateigröße","rating":5,"review_date":"2026-06-28","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a41039ce95a2980f28b3214","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 (a98b50e535ae…), 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.