PFEx/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":"2026-09-29T17:54:06Z","dev":false,"expires_at":"2026-09-30T17:54:07Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsAtbqkAP1HJxy7hFDeq7ok6yM43DQ9mQ1Rh861X8rw","balance":"488427150","decimals":8,"symbol":"PFEx"},"chain":"Solana","dex":"orca-whirlpool","pool":"9GyZ8fz5a87zrjjG1v4zJpuub1wLZvXtaJPGGVnx2fHp","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"255471516","decimals":6,"symbol":null}},"quote_share_of_supply":8.010891100487466e-6,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"29e9f83a59a7a36f2b25638ba4dcc692b36ccd9bd4e1ff55e95f0f239151ee1d","slot":451714644},{"block":null,"method":"getAccountInfo","params":["9GyZ8fz5a87zrjjG1v4zJpuub1wLZvXtaJPGGVnx2fHp",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451714647},"value":{"data":["P5XRDOGAYwkT5EH4ORPKaLBjT7Al/eqohzfoQRDRJV41ezN33e4czf8AAQkEIE4UBey3sloAAAAAAAAAAAAAAAAJO2mGk+gAjgAAAAAAAAAA9NH//3M23AAAAAAAYp0vAAAAAAAH6Cb54tkciz+eLZ+PCSW+3s74AEsLBbfoX1wFwJ4H3E1o3jSMSsP0BIBdIWNh1ouCvRO5GCx5A6EphQAb8Iy+Sfovy/DvgE8AAAAAAAAAAMb6evO+2606PWXzaqvJdDGxu+TC0vbg5HymAgNFL11hqVUggac8slqpKE0nU7br1ExoKVgDK52bnKWgXWI8HSv5upMuhGIaGAAAAAAAAAAAy8C6agAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAui6/LwKaI7GKR1R798LZ7CubYjLuw+NoR9dh+omDPGYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=","base64"],"executable":false,"lamports":5435764,"owner":"whirLbMiicVdio4qvUfM5KAg6Ct8VwpYzGff3uctyCc","rentEpoch":18446744073709551615,"space":653}},"result_hash":"fdc8ba57c986d4803c5ec526ee68daa3e0e5bac3d7af9870257a47a07eeee028","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["CQ1BtGKgk5qk5NYmNnQUpZCDGCt2CjSgbFgCdtVxvxBt",{"commitment":"confirmed"}],"result_hash":"ee591fee46fe898418467e7f0e2bcb89cda26f666634a639879a750c828d45fa","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["6DB92wmP83yCwEF9UUFUrHChLMSPvBGj5gKfBJtujoUy",{"commitment":"confirmed"}],"result_hash":"640f4e363af7e7ee9223e73b908fe54af69e43ade5020db466638290c00269de","slot":null},{"block":null,"method":"getMultipleAccounts","params":[["XsAtbqkAP1HJxy7hFDeq7ok6yM43DQ9mQ1Rh861X8rw","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"ae992557dc5691140e3132202e6a627bfad26731a5637a232c72e4119e6e2d88","slot":null},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"1ca343eb6772a510a533043bfef0023b8e2d8b22e7efff7f9e024783437d4a8a","slot":null},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451714653},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmb0m9WxiN1HAAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":534808027998,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"22e840db883fbc5b2d902a98579cf54907145370778b59d76a7562dd097043f4","slot":null},{"block":null,"method":"getTokenSupply","params":["XsAtbqkAP1HJxy7hFDeq7ok6yM43DQ9mQ1Rh861X8rw",{"commitment":"confirmed"}],"result_hash":"63ad4ec9343518993849579b9818b63baed58bbc88054c5266075c1aa75fb50c","slot":null},{"block":null,"method":"getAccountInfo","params":["XsAtbqkAP1HJxy7hFDeq7ok6yM43DQ9mQ1Rh861X8rw",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451714670},"value":{"data":["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","base64"],"executable":false,"lamports":5602800,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":677}},"result_hash":"d8f3cd066a861b66f2c126bfbf6078627678af20b030fd312432002e3f341089","slot":null}],"registry_entry":{"chain":"Solana","contract":"XsAtbqkAP1HJxy7hFDeq7ok6yM43DQ9mQ1Rh861X8rw","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-09-29T17:37:23Z","name":"Pfizer","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"PFE"},"registry_hash":"f189f325318d314f25c8315e697f5659668d944e1e16ca888046ea785bc1f538","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":451714644,"subject":"9GyZ8fz5a87zrjjG1v4zJpuub1wLZvXtaJPGGVnx2fHp","ticker":"PFE","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"PFE"}},"version":1}

Signature

d6TBVRF9bLeeuoNaAVFAHF2MkfjCa8CiQG50cXXq+j0eT90taAdbz4442EEav+eRN3k6IYdzyJQcjZBfslNkAw==

API call

GET /api/attest/804f503dba0b7bcddaed3027a96582769ab65ed0b454f19619041d49128d4f99

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.