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.

“integrates with all my programs and apps”

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 3666413656

Proof data

Record hash (SHA-256)

28a54296fe592cc4c734671164f85b4115ee9d7c93f3b64edb6efb234ee4743b

Signature (Ed25519, base64)

IeIvGhcqk4up7I8Mzjb9VvyZFuKZMN4MpTLXH76ucLYMkpHa+/fRMMcBpM+SbCb5PCIQgDf1ibphc0hQ9kCBAg==

Merkle root

c0f36ee0335bf71d5c03ca59b0f191f950cfafcbca9602c3bac8b2183aa81d49

Merkle path

["289b243ebe65dfb02fb81759c9860489a98e18a07deb32e3cada8a34988e8c4b","daa1246be9b9887b260ab8b49111707037553c35dc3d5248ee4f8e5ddba776f9","1ad5c022cc7a5221d748f3d02fc4f9e2447dd82b4e2551e1c772c235c193817c","8aef96685e35e4beb451eee243f5d11481a32fd66704798bf1a1b4926b4effa2","ee771d37bd60e3581966d55c02d484ff2f01b7e7a2625b533fd8a538d8b110b5","cc058c29d6f60dbfce1b8bae968e0e4f1b92efc8dab13da21f1db980de41f11e","3113b19450b334e2b49a1bbe3e4f3fbf818800b37d0ad13f210eb10ac9b893aa","0f04fb042172c5b8de49122bfcba86d17c247562328e9adeae51fa4e42f43de7","edfa6309a79c7a6fa7612b46a81ad498d93235a0033a4b233a223aac9e80d71b","95b0fa2bed8cfc8cf7f1ccd65336010a9c04e3e3797556d14a79fbb7c95f096a","08a4fe29ff9a66acf227f10369aa32c8822afe6525127ae2f7d55c5e4b5d5746","927de500e960266e9b12c9524aa43fa0bea81f1fe70a1fb15680bad0fd81e947","b51875ca42ff32753b93a043ad0f198e3e1ef2fe1aedf16283da4cd1b4b1d542"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3666413656 · entry 108e9186e8c5677a8e86…

Expected log hash

0d2952e2a04951edee30f820ff095b505511cde698e520c69b8bd5fc03c1eb96 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":"v1793701189085","kind":"published-quote","locale":"en","page":"brand:fastmail","quote":"integrates with all my programs and apps","rating":5,"review_date":"2025-05-14","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6823cf1f4336a59c8298de21","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 (c0f36ee0335b…), 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.