MSFTx/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":"2026-09-30T00:15:32Z","dev":false,"expires_at":"2026-10-01T00:15:32Z","issuer":"Backed xStocks","pool":{"base":{"address":"XspzcW1PRtgf6Wj92HCiZdjzKCyFekVD8P5Ueh3dRMX","balance":"22880887627","decimals":8,"symbol":"MSFTx"},"chain":"Solana","dex":"raydium-clmm","pool":"CLu4kFM4nb67xrdN7vJnMxXXir8Z5hA4HJUzPFccXjsL","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"280635821817","decimals":6,"symbol":null}},"quote_share_of_supply":0.00217975217200843,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"65a2bd4ef0f1969b338f3eb235f6e9d73ef9591f56a30d73a44dce65d6c307b0","slot":451799964},{"block":null,"method":"getAccountInfo","params":["CLu4kFM4nb67xrdN7vJnMxXXir8Z5hA4HJUzPFccXjsL",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451799965},"value":{"data":["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","base64"],"executable":false,"lamports":11647205,"owner":"CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK","rentEpoch":18446744073709551615,"space":1544}},"result_hash":"c6a3716ce2ab6f3ab1caf3dfd42609b6a27c5463b0dac27d4cb39b5868bff33b","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["A2Skn6UnSuFusfc3aPhBfiMCyYZugdd4ntrMcevo5xvB",{"commitment":"confirmed"}],"result_hash":"6817dde23cc33a7c3bdba1c89d71bbd32329a35024de44554b3f92d8b3ae3d0f","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["AtP8LYj8MBdHWXAdFVWmc3QC91wgBs1F4d2mxFGptepC",{"commitment":"confirmed"}],"result_hash":"50a5471331f32446fbd7cef76e109483436903d66fe1eb3979ba1118ac5a2ffd","slot":null},{"block":null,"method":"getMultipleAccounts","params":[["XspzcW1PRtgf6Wj92HCiZdjzKCyFekVD8P5Ueh3dRMX","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"510cfcb6d0816f3b6ba4891b33cbf573010969453f97946b9721a9edddd9cba6","slot":null},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"b22b493f12cb46d1bfee0482f91cb8f0a44c240bb93a05eda4e9169845964604","slot":null},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451799971},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmb6VzxeZQpHAAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":534808027998,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"66ca89d81c3598413b0deea5c8c360c7ec5d775894314a1817b03db821edf9f8","slot":null},{"block":null,"method":"getTokenSupply","params":["XspzcW1PRtgf6Wj92HCiZdjzKCyFekVD8P5Ueh3dRMX",{"commitment":"confirmed"}],"result_hash":"d5ef01e3e018357bdd8b6d8c6fb2d5857de26efdb6f734f9e025563c06654293","slot":null},{"block":null,"method":"getAccountInfo","params":["XspzcW1PRtgf6Wj92HCiZdjzKCyFekVD8P5Ueh3dRMX",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451799995},"value":{"data":["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","base64"],"executable":false,"lamports":5637601,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":682}},"result_hash":"87dfe9663f717cc86ab07289048b77aba88f95160e51ade80ca628b4789b55a5","slot":null}],"registry_entry":{"chain":"Solana","contract":"XspzcW1PRtgf6Wj92HCiZdjzKCyFekVD8P5Ueh3dRMX","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-09-29T23:37:23Z","name":"Microsoft","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"MSFT"},"registry_hash":"b3f72fc9046ef9a37e433405d5916bce13581b85d8cce5889f24cf56e53b77b4","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":451799964,"subject":"CLu4kFM4nb67xrdN7vJnMxXXir8Z5hA4HJUzPFccXjsL","ticker":"MSFT","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"MSFT"}},"version":1}

Signature

krw+zBUhakRTznIIjqMJ6bckmOIDCnZRerm5lATlBS8DoYYh81JbMWRABYIQQ4UsqWQxkZbe8BiHM/r40HocBw==

API call

GET /api/attest/780f99ceacd0a338661328ccd41b883d9bb43e2443e9503b9e6002fa2505851d

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.