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.

“die schnelle und professionelle Kundenservice, die mein Problem glatt gelöst hat”

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 2621505474

Proof data

Record hash (SHA-256)

1147a0f1e8e7ecbcdf480aa045dc6d2043fa605bda72f6343cc37cd0f5421195

Signature (Ed25519, base64)

foiqZrgwSWe0C0XSNUPkeTL7DKeIMJ5Nc97f1qpY+8FjvH0LKr6cyKtpBXmkuVzvXAiztkpDZ5DwTnbESZjQAw==

Merkle root

d07487a7d8598747d5b143d9a16722ca7a83f5bd36bc79d5bf9130c2672dae41

Merkle path

["114670bef8346f33e96e892827625ad281282231068a03404face1ec07841323","917fbffc8398e37fc7b1334734cd96c0a42f6c7a406cfb575779e82dba5ba2a2","600702df3c72acae6cf5c97588a9088bf95ab8471c6fde18f61f8a2f9d7d9efe","b84c7130faed9d5275a9d864fbf07392cbac8eddcc9dee037b418faa53476c05","728b7d9cd2a84f28317844190288411aa4eaed66a29503722caa3cb3c588d414","6931359a121117611ef32a4d52b0d6312a1646d40d98cdec484191a373473c20","d843debd6e6acc39bb12766d604d3c65744aac349aae066b86702b29ddf4fe31","9e7f3d4b2a3b1beaccc9bbc7975004136b00813138576bb5cab164ff0957b0db","e26bb24c887bb3a683009fb0fabe2f939a20ebeb39a63b284c8dd64e2885e505","5472aa95ee16faaf8cdb182168677dd0ddc593562c61cacdc67f4507bacfaa29","51e91757fb79771c7c3e7964ccc1e1bd4c83f91fd12f988f28fcecdd9b9fe112","a0fdfe7690d005e054fb3a90a34d7cb5dfb00910c185dee375fbde390d3c55bd","884e6220e81a9d5982bd71d70ff9eeca2e340f53981f663fa0ca7490cce6445f","39aaf77ef5b3e4cffa994bd58b84219ff7133fe1d71c02bfd8ea2a47d2f7467b","fa743bec0c13730c5e9e6be51f1ac48c3e9e0953b18cdf4cd6390a132151d0a5"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621505474 · entry 108e9186e8c5677a1258…

Expected log hash

7fc4ddca6f65b68d7bb8897b96188547f56c1ba672ff212c685cdf4bf7438da9 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":"v1787887633012","kind":"published-quote","locale":"de","page":"product:smallpdf/ai-question-generator/de","quote":"die schnelle und professionelle Kundenservice, die mein Problem glatt gelöst hat","rating":5,"review_date":"2026-03-10","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/reviews/","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 (d07487a7d859…), 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.