NVOx/Unknown

QED signs a canonical JSON payload. Fetch the public key from /.well-known/qed.json, then check the signature against this payload.

Canonical JSON

{"block":null,"chain":"Solana","checked_at":"2026-10-07T16:32:09Z","dev":false,"expires_at":"2026-10-08T16:32:09Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsfAzPzYrYjd4Dpa9BU3cusBsvWfVB9gBcyGC87S57n","balance":"1424074388","decimals":8,"symbol":"NVOx"},"chain":"Solana","dex":"raydium-clmm","pool":"9BJmnQ8sACCJxkDviZAyXVogczBrfQqmQDcxZEFVAjNQ","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"141941504","decimals":6,"symbol":null}},"quote_share_of_supply":0.00004504420301171549,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"3a1f4793f77484f32f61fdf9a791919bd81b0d929f689375324a7e61a5629d0a","slot":454277331},{"block":null,"method":"getAccountInfo","params":["9BJmnQ8sACCJxkDviZAyXVogczBrfQqmQDcxZEFVAjNQ",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":454277332},"value":{"data":["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","base64"],"executable":false,"lamports":11637121,"owner":"CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK","rentEpoch":18446744073709551615,"space":1544}},"result_hash":"4c5fa6b071555d8b19331810584477c56a63e4267aa0417b02aff15fbec80faf","slot":454277332},{"block":null,"method":"getTokenAccountBalance","params":["2qU52LKwVP4t8BzcXXjeQdSPe1QvANbUXez9iHh7xdyn",{"commitment":"confirmed"}],"result_hash":"2bd56b14b8b4e68113e330c48eaa949a3f73c8ea770e4b6785df41392fed4180","slot":454277333},{"block":null,"method":"getTokenAccountBalance","params":["FnxtEVP6Qei4P6UiMFpY3eQMNRStBGuWTMnSj97HdR2X",{"commitment":"confirmed"}],"result_hash":"8e9671e904460e5a1835c81f83c595d53c307f0a6b2ba74163f6f5b4094e3207","slot":454277334},{"block":null,"method":"getMultipleAccounts","params":[["XsfAzPzYrYjd4Dpa9BU3cusBsvWfVB9gBcyGC87S57n","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"00fe1e1b89da04d574457f69690e6a1db58883a1302f5752f6da017f6aa24658","slot":454277335},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"5bcbd78dc6132167ce249eac34d096c712d76c049ea40d36703affdd835cc92a","slot":454277336},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":454277337},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmbddbtvlK+GwAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":535428469385,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"1302e61ff35e085ed6c66194568c922bb24de8568015cdc6a568451be587889e","slot":454277337},{"block":null,"method":"getTokenSupply","params":["XsfAzPzYrYjd4Dpa9BU3cusBsvWfVB9gBcyGC87S57n",{"commitment":"confirmed"}],"result_hash":"b204044eb899b75280192466e81e59f08ae3b5e87608764b8b9eb3c87af75107","slot":454277355},{"block":null,"method":"getAccountInfo","params":["XsfAzPzYrYjd4Dpa9BU3cusBsvWfVB9gBcyGC87S57n",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":454277356},"value":{"data":["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","base64"],"executable":false,"lamports":5644560,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":683}},"result_hash":"7fb68b67ec08d0d667ebf023e6c58e7c93a60aeeb078f92a462980ae8d6f8974","slot":454277356}],"registry_entry":{"chain":"Solana","contract":"XsfAzPzYrYjd4Dpa9BU3cusBsvWfVB9gBcyGC87S57n","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-10-07T15:55:09Z","name":"Novo Nordisk","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"NVO"},"registry_hash":"d506cc7387a16b9f48e7ff3694fde5bb980f86cbf71f737d83495780d0598787","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":454277331,"subject":"9BJmnQ8sACCJxkDviZAyXVogczBrfQqmQDcxZEFVAjNQ","ticker":"NVO","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"NVO"}},"version":1}

Signature

Epa9gnwBmPBRpieen903KPCX7KQEIr+eAZ5qaTVEDdcnvvMhSZNxCqKKbAaZm/HXPeeZ5bUmUdtsNZ1N/gK9CA==

API call

GET /api/attest/ab9dbd21f4bc93cddd3d0a92996bc161ae6e21d16121c36eda146ed17a024360

1. Fetch the public key and attestation JSON, then verify the signature with the published key.
2. Canonicalize the payload with sorted object keys and no whitespace, then verify its SHA-256 attestation id.
3. Run the API call above and compare the returned payload, serial, signer, and signature with this certificate.