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.

“Contacted their sales team requesting a time to discuss my business needs”

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 3240911465

Proof data

Record hash (SHA-256)

39ba9480ef1b999bf1673d7dcdb065043b86699128b69dba32f3784632ec23d7

Signature (Ed25519, base64)

ThFy1oayGt8W9LJl0tblZva1NYaBFOMUEAhpGoRre/bN37S0sjssnRZUSpz7ead+XXQf/fxriQWOZufzxv/dCQ==

Merkle root

274a7762154bd166543ff3cdffd566852c7127b7d67c5c835965884725fa5b5a

Merkle path

["39b7908437895675f0fb2f3f4a83d240cc779648e7a969ade85ca0ffd8613901","cbc21069bee72450875b8b6a01c8d33755b5efc62c54e0859e786c27409c4933","85055a57e7dd2c941b5b85854af7f3a9a4b1b350af1d4117bc350f43da7d5004","9f665fb07172a5632f4a52fd0105f6d6bc14ff29d34396a7433183974bd98a9b","37295a75c43148b344db607e37efcac1c28e8454f83637559ebbda9a84e0cc6e","9e1c75b1721a694566d652c7882e19dd4515e7ef8addb1bbe144663fbfb7e8b7","b0b0319236c486d2abbda05627c468556f6e86e4014e4d94e1f2870fd5f8bf73","d1dae55d49773c035391d36e73b29afe58d4eb0f93e4652d537478f294e1ff77","babf921312494e5f56408698914280be2e516f183eae6ba67f0a6a027e49f636","d45ede78b5af8838cb60ba3fe8467aca5d437f25c7a8f8a9266dd712f6af16e9","24702e06e291aa1cbad65f2549cdc9408372754c167fcb7249a712b75b1b92c7","4e9e9bf46c43d71ed5302f960a878d42b37361bf495c828ceaa24d26c51bfe56","37e0bacf6aea102741ccf02dcd42b0de6a02c60397ad417aaaf9cff69daaf006","29e5b66d9f235b4df92caf0fbc75cded7863ab76bbe1924bd45c3ed8fea27123"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240911465 · entry 108e9186e8c5677a3a8f…

Expected log hash

75e63ac56a22d308ee68ec8d436777d2fa26c934f80384e53bcc94d01475e988 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":"v1791863907329","kind":"published-quote","locale":"en","page":"brand:fastmail","quote":"Contacted their sales team requesting a time to discuss my business needs","rating":1,"review_date":"2026-09-11","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6aa3f5e7a439088cfe2cc047","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 (274a7762154b…), 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.