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.

“Watch strap broke only a month of usage”

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 2541942774

Proof data

Record hash (SHA-256)

fd50b4c278842a57e8e94df0a328294ab01d639344e98307fede76a8afbe9271

Signature (Ed25519, base64)

J2zqskj9gYwoSBDCKsD8D8IzPROjDV841xtzr24w8kF/pP9Af4wOajFBAD94l1WCP/1CbaBi1qacDVhn5kc1DA==

Merkle root

0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91

Merkle path

["fd53dc0176336c12a17f6add8c122f915a9e5cd29002ad65b4afe7fb7414336d","c4c1b9997d9de5af75a75f88287e16eae81003d8e62068dd636292c04b6ccdb5","6c1e0c798a51cdf7fcc81bc7b94e53215dd671286ed5a421c2ca2397818c99ad","bd0905ec38a64b0e9035ba7a0e84659c91009446e9cf02c7caa83da9967e3c49","3d4b7db47746a61984ab7e42e798b631805dbff79e33c15e8316a44fe6c093ad","df147a4a094c611f342709b8072b6f0d6cfc55bf17524b0e9fe9b2bbe87896b2","c0725d5b6bba08dd7c4ace2014c540061ea6596d8468f638b161a98699486dbf","bd3fdf5b43712b2e338391764959e530a4b1db528455858786fd5f118a23a221","34307bb49e15cacecb311aea3aae7d7d379c493ae2052ae3141a1245b4b5d260","35f0e8451f7e68be5c9eefbdbe96b74ee443546634aa36c7f9d982590aaf6ae6","1dd5c867a33c54be1170a7ccc2c4ecd237a04e44188420e38ee9c3c7d2fb0338","9df2bf9d1d071ae591fbe5cbeff73846c3d5554d23a78779c9dda4580ec264e2"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2541942774 · entry 108e9186e8c5677ae0bd…

Expected log hash

4825ba618d3c3368179be13912e101812df871de37f30b1ec256ca6d987713ec 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":"v1787277864570","kind":"published-quote","locale":"de","page":"brand:casio","quote":"Watch strap broke only a month of usage","rating":2,"review_date":"2026-07-27","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a67bc9bea3adcae59024a94","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 (0fdf8a945cf3…), 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.