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.

“Paying for Email is money well spend”

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 2789279696

Proof data

Record hash (SHA-256)

95fefce16be259f75741c7fcc65083dd5382cac0f42b1edb71c3b8676044434b

Signature (Ed25519, base64)

N4dZbZkzqGbpv/gIjMdGzblbcplar3AXKXkF18ENMy4PpBe0/eHuiHryNFJXQ/c56echZ/GzZz1kHd2A+T3wBw==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["95ff9accede790c9c24b5ce33b6182792fa938ce9f71945057f6257d55c50665","110b971bac72d068f2c92732486480f68e99c9b0fa82a5274c0918dcea74d5e1","9edb69d8c3946b85bb0ad05cc515d7b6278a9d1368e4e376878868f97ab5c3dd","0eaa47b909a82abb8b4cf2b42f66d3740504d1248d5f0b7f420551ceef2c05c1","83382315eef683781b4379f639b48229d4f35b30e6412ae826c4e028397771cb","8246b4d8673e06b88d3205bc7811495bb733b5afe5d69151512514cb89e394c8","3649d861ecf4f8a404f541e9412d26b9dcd0c897f538760aa1bf91886adbbba1","08b5868802d5fca5f4bb76251c17c026d48d53ef33e002daa2291cbe96e4488b","9fb317babd0f77c905b5e8aa2035129bc8a52ca52124bc6bec42de36ff413dca","0ea0cd1b0e6b37f397d79f7571b899131005ff882607823ee7d291accf955b9c","400abd053c2aaf50c3e9947fd0ffb052641babc26e674c2fb04a1eafa76dd64b","0bbaca186fa570cfa914cb3e4cb0d5d663a77ff60ade12385fa90fdfef78367f","6772a6b2cfb742f4baa103e424787f6ab6a8cbdfc294db886f1451f7c9752077","90e3c3ed08ff9f4dee6683cf95bfff311f4715cac07e97ca75ea5b9bcf13efe4","01242865574478f13dcf9d888236d7a907264abdb87f360db7db06de0945075a"]

Anchored

2026-09-11

Public log entry

search.sigstore.dev, log index 2789279696 · entry 108e9186e8c5677a3885…

Expected log hash

05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921c 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":"v1789017464005","kind":"published-quote","locale":"en","page":"theme:fastmail/price/en","quote":"Paying for Email is money well spend","rating":5,"review_date":"2026-07-10","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a5112b9730007e38b3091c4","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 (97eb1062a862…), 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.