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":"2026-10-03T17:07:30Z","dev":false,"expires_at":"2026-10-04T17:07:30Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA","balance":"63719121","decimals":8,"symbol":"MRVLx"},"chain":"Solana","dex":"raydium-clmm","pool":"BceYQ6QpGyCWDgWW3Yg24PCDcacxhSinvRU7dxKqScHJ","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"206934969","decimals":6,"symbol":null}},"quote_share_of_supply":3.53859580035681e-6,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"92ac405f1c7cd92ff9c9bc0d6645223eea4ced2e10d24ea78ca09f8633a54cac","slot":452996128},{"block":null,"method":"getAccountInfo","params":["BceYQ6QpGyCWDgWW3Yg24PCDcacxhSinvRU7dxKqScHJ",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":452996129},"value":{"data":["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","base64"],"executable":false,"lamports":11639120,"owner":"CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK","rentEpoch":18446744073709551615,"space":1544}},"result_hash":"db9326fc9425a321df7885f60ff43066b8a830c4568eb1609116a37d870efaaa","slot":452996129},{"block":null,"method":"getTokenAccountBalance","params":["9BUwsVtthdmxjdyy52pgjLs6NrAmxqYgbTPoZ54qJ2V7",{"commitment":"confirmed"}],"result_hash":"fb969f2b496d818930c519baf2660e3aba00f56c5011f0aa50adc25014b5c757","slot":452996130},{"block":null,"method":"getTokenAccountBalance","params":["92rRGYnGVD2zXTGQ3ermMHyMqKa4nj9TyqH2NYSibGxf",{"commitment":"confirmed"}],"result_hash":"e523091feaec05a5089e7828fa9a10002839ce9f0ae4465f73a89ca778199c1e","slot":452996131},{"block":null,"method":"getMultipleAccounts","params":[["XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"0241d30331d166f9d6ceb515a212e9c19d2d2a91e813fbbfa94beffb4380f786","slot":452996132},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"2c81d7e4509bf6e293e365c284a92e6daed2abed6e511db2f98c965fb62f4978","slot":452996132},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":452996137},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmb3QnniN7bHQAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":535328983427,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"f41a503093dbada2819f6ae3d42216ecce3efa6d69041ca385edd4d6f8e2e69e","slot":452996137},{"block":null,"method":"getTokenSupply","params":["XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA",{"commitment":"confirmed"}],"result_hash":"fb9c749fd63c2a88efd050c0fd906779d35958cbed7f78c7569ab7d815bb8893","slot":452996153},{"block":null,"method":"getAccountInfo","params":["XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":452996154},"value":{"data":["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","base64"],"executable":false,"lamports":5623680,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":680}},"result_hash":"cc6f1a3e83c603866d3622e55db9cdca9640eeb9b537b639018a7428985d1d32","slot":452996154}],"registry_entry":{"chain":"Solana","contract":"XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-10-03T16:12:38Z","name":"Marvell","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"MRVL"},"registry_hash":"3612571438e61a12620835aaecd4cd679ea080395a3e967ec80d6affccd4f074","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":452996128,"subject":"BceYQ6QpGyCWDgWW3Yg24PCDcacxhSinvRU7dxKqScHJ","ticker":"MRVL","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"MRVL"}},"version":1}

Signature

KkA1EuZfVygvdKLg4OO+sleQr3jRyBaqjOLMeRhh7GZUfXdZGSi3zIeFeKxq/B8aGo+nNM0MJCx0bwecgSbFCg==

API call

GET /api/attest/6ca89662048ab850a58544a4d16eec121cdead78cdb0ae43b03e13a0d36f493f

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.