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.

“It is always reliable and easy to use”

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 3273402563

Proof data

Record hash (SHA-256)

040401c779b2f69c310c78a09edc2eece386870225fcbdb7c20d9d94ff133920

Signature (Ed25519, base64)

w+kc4+g7+I2yUDjWcKEY9Zl5j5QM0XMHNVMfXU4+MeMAk3rKPufbntOupy3nfI44gfCUGtvd4xbzKiBlw/2rDA==

Merkle root

f157206eaf0681e32c282b6c87b482d5b05edc0371242c4555dfe07a805d46ee

Merkle path

["04042bce15a6d1b03d5c586627b2fd1e84268b601ac71e30deb99e12a2d95bf6","cd99cb0f6e652bf9df27555af509c6d2cd29c5f16a50ae945e333ede8535823e","35fb80b175fc83c86ef003a0cbd76b37a8b7fa74ec2b44007bdd1709c0d11a24","33170aaaf0adbfcae4d57a65aaed0970e98031a82eebaf85e42feb1928db2d56","91298318c6f068f2329633f61069d1117829f2846634f9496c97882a0639a310","a6348cf924a6a1bec8bf41b08c3865c813522f18310220d975c2fd4990b00ca6","b678fa344564c3ecc436015f415bafe19b3120660c707edd4caf5daa1c4f60c8","d731977a6f20937af44998752c8014d7035558eecefec1dd0eb18e80db460a8a","d6c397197cec57ebe3b2b357d85f352528bd757fd705bb4e3be686bc1a36923d","53ec235b3ec2700df8e24ce964576421e1b4292a48306967e43ecd3007606580","9c625a75a9274c71647d761c2cd9f5bf940d702ef86f2a79f09f19f7e4637b11","c983079c81f3fe3701fa74b1f3d07ba4ae521d2aa67e53391f4fd7e312ac9423","18d3f68accc8835a5c40f0c374bff5769347a644756ac8ed830a1459ec4a0187","72cec015fa128b419dcf741d3ca687936e9595c259ab78dfd4256d8340270e61"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3273402563 · entry 108e9186e8c5677a6df5…

Expected log hash

d39be9954db9139b182dabecbcfa2b9510337ba2b23ae56a3f9ebed18578385c 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":"v1792122859337","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"It is always reliable and easy to use","rating":5,"review_date":"2026-08-10","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a7a25a9cb5fb18cc8ed58ef","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 (f157206eaf06…), 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.