AAPLx/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":"2026-09-30T00:17:32Z","dev":false,"expires_at":"2026-10-01T00:17:32Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsbEhLAtcf6HdfpFZ5xEMdqW8nfAvcsP5bdudRLJzJp","balance":"39751513808","decimals":8,"symbol":"AAPLx"},"chain":"Solana","dex":"raydium-clmm","pool":"CKwJZwm7oj3nu4653N1EpDrqXbXAYXoPFiPeEnLouF8y","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"156292069126","decimals":6,"symbol":null}},"quote_share_of_supply":0.0025852524684830953,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"e164e7cb85d969091fea83bd964c0c81850a5b4360b80818585436e16f48a29d","slot":451800412},{"block":null,"method":"getAccountInfo","params":["CKwJZwm7oj3nu4653N1EpDrqXbXAYXoPFiPeEnLouF8y",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451800413},"value":{"data":["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","base64"],"executable":false,"lamports":11655135,"owner":"CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK","rentEpoch":18446744073709551615,"space":1544}},"result_hash":"deb998018fab1378ccf5c7588c1e9e6f668c03beaee1c9c292fdf91a5895e418","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["3DRUhhz5q1wsXZxYYpujPP4Fq5hYNfEGggSq93d99Tn7",{"commitment":"confirmed"}],"result_hash":"27df864ed351af1ff308591023e7f1b8cad062a9037f57e7f6c5975f573906be","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["yMw7pT6pqeSNDUvHkv7626eeGEHC7PrRhXa6mAAuiuw",{"commitment":"confirmed"}],"result_hash":"9fd991641880ea2969ce7ccc008491675dde23cf206241ffa8d5d29f8371396c","slot":null},{"block":null,"method":"getMultipleAccounts","params":[["XsbEhLAtcf6HdfpFZ5xEMdqW8nfAvcsP5bdudRLJzJp","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"fc32949af56e620e54b8e91cdb1628359a1159b9b66a87079d2035fd363bbfff","slot":null},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"49abc982c0abaf0d0f01386015d8e26681c24c6300fd1847d0241c86d287fab4","slot":null},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451800419},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmbFHohlIf0GwAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":534808027998,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"a19941496bcdff165aed61b34353a88a73a7cbfd8556abdff5ae63e456e5ddfe","slot":null},{"block":null,"method":"getTokenSupply","params":["XsbEhLAtcf6HdfpFZ5xEMdqW8nfAvcsP5bdudRLJzJp",{"commitment":"confirmed"}],"result_hash":"62e7824578b12e6d5208bc813a46387f544bf85de5323dd9af5c85bcdeeee05b","slot":null},{"block":null,"method":"getAccountInfo","params":["XsbEhLAtcf6HdfpFZ5xEMdqW8nfAvcsP5bdudRLJzJp",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451800438},"value":{"data":["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","base64"],"executable":false,"lamports":647086478,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":678}},"result_hash":"6926cc9c9be0aefcfc326b00d9dfeb3b00289835eed2d6bd7d6810c267efd600","slot":null}],"registry_entry":{"chain":"Solana","contract":"XsbEhLAtcf6HdfpFZ5xEMdqW8nfAvcsP5bdudRLJzJp","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-09-29T23:37:23Z","name":"Apple","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"AAPL"},"registry_hash":"b3f72fc9046ef9a37e433405d5916bce13581b85d8cce5889f24cf56e53b77b4","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":451800412,"subject":"CKwJZwm7oj3nu4653N1EpDrqXbXAYXoPFiPeEnLouF8y","ticker":"AAPL","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"AAPL"}},"version":1}

Signature

zk4E1T/YjD2GNjmreO8SIISY6n7IdORrfq1gQv5z+TZERpADY8RT9NyT/0U3Slu9cJsURqbEs6QL4srW2RMkBg==

API call

GET /api/attest/df561900e7af456df4f8dea58a113782a83d2bba61547a160ac471b87e9323e7

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.