MRVLx/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":"2026-10-06T15:05:56Z","dev":false,"expires_at":"2026-10-07T15:05:56Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA","balance":"271129770","decimals":8,"symbol":"MRVLx"},"chain":"Solana","dex":"meteora-dlmm","pool":"6qGLyrG4Dg8iDJCmiEV5JSToGWDQU1n8FDGLvmBrLWjn","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"958152977","decimals":6,"symbol":null}},"quote_share_of_supply":0.000015056997811908106,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"aa0cf0040505fd719d1340a9b3408ff4e3122b48d59cc2af1fb2811c21c627d9","slot":453936876},{"block":null,"method":"getAccountInfo","params":["6qGLyrG4Dg8iDJCmiEV5JSToGWDQU1n8FDGLvmBrLWjn",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":453936878},"value":{"data":["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","base64"],"executable":false,"lamports":7183720,"owner":"LBUZKhRxPF3XUpBCjp4YzTKgLccjZhTSDM9YuVaPwxo","rentEpoch":18446744073709551615,"space":904}},"result_hash":"0f4e200fe1878117fc6d2f1ec3b4262ef360bd7a5563186a9d8d620330524a10","slot":453936878},{"block":null,"method":"getTokenAccountBalance","params":["CA2D4vLBD9JotLDtNr3sM2Mgf9KHi38YUjYWaD89EDbz",{"commitment":"confirmed"}],"result_hash":"694665315b0e0b0d66a9ce10a859dc3500dee5923d6e5f109407ac2364070a24","slot":453936879},{"block":null,"method":"getTokenAccountBalance","params":["EFAZLkGrMFVGJQBsUmz78TFe2khiMiRJdnchURErQTzb",{"commitment":"confirmed"}],"result_hash":"91511347410d6860244dc736aa22be1061f355ae6dfceddaef208ebbfea5c9b8","slot":453936881},{"block":null,"method":"getMultipleAccounts","params":[["XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"a9dbe48e2e8dc33b139d6b75e85aa8b502210d40dd9eeffa307d158f918a0a98","slot":453936882},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"99ffd28cdedf72c942531d54ae68f85854a617f34201f93c750d1363b07bc794","slot":453936883},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":453936885},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmbxcvWnh5RHAAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":535340471867,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"211ddd31bbcb8f660b240acffcc9b0529a3ec079efa4f4c4aabd8b224ab6a7bd","slot":453936885},{"block":null,"method":"getTokenSupply","params":["XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA",{"commitment":"confirmed"}],"result_hash":"4470f9175cc62ba80b1e7c9965db94dde38f281a4153bec00c948591e8d70840","slot":453936903},{"block":null,"method":"getAccountInfo","params":["XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":453936904},"value":{"data":["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","base64"],"executable":false,"lamports":5623680,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":680}},"result_hash":"7e3fefc1623f5d90a95f12cf796f7f05b8805c52baf6b197449a3646bcb4d137","slot":453936904}],"registry_entry":{"chain":"Solana","contract":"XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-10-06T14:14:21Z","name":"Marvell","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"MRVL"},"registry_hash":"d20ae7921260bfbec4610eac5e2d2c84565374edcd3c8030ed0f4e8ecb4b3f00","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":453936876,"subject":"6qGLyrG4Dg8iDJCmiEV5JSToGWDQU1n8FDGLvmBrLWjn","ticker":"MRVL","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"MRVL"}},"version":1}

Signature

b1Qv05I1xHnnpYr2JFRpO5UGSFvy4SYaV99/lHu2arFre1/FqIqrzf1cvwq7Eh2ajHdTg5EgxkyxYbFKfhnEDQ==

API call

GET /api/attest/084c73dd0dd62c0ce4194dcd744ac72dbd4463f569afaee6619ba19844b560a6

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.