CMCSAx/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":"2026-09-30T20:25:29Z","dev":false,"expires_at":"2026-10-01T20:25:29Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsvKCaNsxg2GN8jjUmq71qukMJr7Q1c5R2Mk9P8kcS8","balance":"7733767983","decimals":8,"symbol":"CMCSAx"},"chain":"Solana","dex":"meteora-dlmm","pool":"6zn15McRnAgpyqgF7WMdUY4vRFd2mMJhFvtGhiyxuaxz","quote":{"address":"So11111111111111111111111111111111111111112","balance":"15016891858","decimals":9,"symbol":null}},"quote_share_of_supply":0.0001461965293126349,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"f324a364a3355d2ead81ce12f5b27c3f1fabdbd9e236c7b04a181db3988705cd","slot":452071374},{"block":null,"method":"getAccountInfo","params":["6zn15McRnAgpyqgF7WMdUY4vRFd2mMJhFvtGhiyxuaxz",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":452071376},"value":{"data":["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","base64"],"executable":false,"lamports":5242560,"owner":"LBUZKhRxPF3XUpBCjp4YzTKgLccjZhTSDM9YuVaPwxo","rentEpoch":18446744073709551615,"space":904}},"result_hash":"d53e20fb5dfde18660b14f786499dd7cb0d62bb15103cfa3687512b3e7aae85f","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["FStq2FSv3VTwfnxRX1uSNjbhAnmq8FYqCFCAQUFrGFZ3",{"commitment":"confirmed"}],"result_hash":"ed11af9037fc97544cf2fc611cf5f523bf8c7b3f767a982b1f9f8a96082e120c","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["EteAcikRUX7YY2XU8KZKR3paVz2ecTimLJXuoC52yDp7",{"commitment":"confirmed"}],"result_hash":"3d29490f6aeeab5bf05d03bf0f64e52cfef899f717d848f9f1448e7aca38dd30","slot":null},{"block":null,"method":"getMultipleAccounts","params":[["XsvKCaNsxg2GN8jjUmq71qukMJr7Q1c5R2Mk9P8kcS8","So11111111111111111111111111111111111111112"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"e0e681cffe82d99bf3eb9f082a11602134972a96b731a47103fa20b120d7c4bf","slot":null},{"block":null,"method":"getTokenSupply","params":["So11111111111111111111111111111111111111112",{"commitment":"confirmed"}],"result_hash":"1ecd35b0357f1868e1022891e7f8c5e94f5f68a1b3648185910e3a5ac72665e1","slot":null},{"block":null,"method":"getAccountInfo","params":["So11111111111111111111111111111111111111112",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":452071381},"value":{"data":["AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAJAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==","base64"],"executable":false,"lamports":1848455052303,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"a5abefc026b469292374ad5ca84e82fb5a62458e092b7e47754218cd570808e6","slot":null},{"block":null,"method":"getTokenSupply","params":["XsvKCaNsxg2GN8jjUmq71qukMJr7Q1c5R2Mk9P8kcS8",{"commitment":"confirmed"}],"result_hash":"a7819e348483d2caa68a05d8a35735e0e10b33d182783d8c4b8a9eb961ee7f33","slot":null},{"block":null,"method":"getAccountInfo","params":["XsvKCaNsxg2GN8jjUmq71qukMJr7Q1c5R2Mk9P8kcS8",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":452071403},"value":{"data":["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","base64"],"executable":false,"lamports":5637600,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":682}},"result_hash":"32b45c8454bbd3268440218a69280c56efbcabeac44f5ce58da912146871a0c3","slot":null}],"registry_entry":{"chain":"Solana","contract":"XsvKCaNsxg2GN8jjUmq71qukMJr7Q1c5R2Mk9P8kcS8","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-09-30T20:20:14Z","name":"Comcast","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"CMCSA"},"registry_hash":"a99ed049a73be4334c4eedf803c1905dec813813d0057448e3e14e6a76807dda","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":452071374,"subject":"6zn15McRnAgpyqgF7WMdUY4vRFd2mMJhFvtGhiyxuaxz","ticker":"CMCSA","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"CMCSA"}},"version":1}

Signature

sUc04u4sr9iD5k0011oHbs+jSJV2SA7S3sR00eIy/6zceFXt4TKqZMmEqQUJds9D5nbjNyFk1FYhNlR0+XbvCA==

API call

GET /api/attest/edd0de643f7de87b66018b17bfe6750fbb1e11ff11f865828818ec0df787b025

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.