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":"2026-09-29T23:06:45Z","dev":false,"expires_at":"2026-09-30T23:06:46Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA","balance":"139974533","decimals":8,"symbol":"MRVLx"},"chain":"Solana","dex":"orca-whirlpool","pool":"GuSRpw1ix66fPBnmBdhz1iEfbph1Wi8tmJc4jLx9vaFt","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"2246249201","decimals":6,"symbol":null}},"quote_share_of_supply":7.773385528658714e-6,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"9eec2956015a0216767482808d13c28684f62fc627a908df72b67ec70a6e67af","slot":451784556},{"block":null,"method":"getAccountInfo","params":["GuSRpw1ix66fPBnmBdhz1iEfbph1Wi8tmJc4jLx9vaFt",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451784557},"value":{"data":["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","base64"],"executable":false,"lamports":5435760,"owner":"whirLbMiicVdio4qvUfM5KAg6Ct8VwpYzGff3uctyCc","rentEpoch":18446744073709551615,"space":653}},"result_hash":"0f1f937570d10ee3a77871d4f951358c38dab46bc4fdffc947b3a206eadf2855","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["CvjNkSzjtpRvHiEzJzXB8GRPWiVBZMtsNxfTtaiAGe4N",{"commitment":"confirmed"}],"result_hash":"4a00c3a9feba0caec009b3350aece1cd1c7edabeb88f56722c7e3ada4429b265","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["38QXTSP4BH2Cvr64UAz3mwYYCNoHL2TdVk8mSBCveVMi",{"commitment":"confirmed"}],"result_hash":"63cd8da62a314f082e54b79455b4d43b87dd10d57b299d1c8cb25cc9219ebbd9","slot":null},{"block":null,"method":"getMultipleAccounts","params":[["XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"03b0c48ed416d8d713798b3a10e2ed1313fd7d462dfc5023bc9a194eccbd61e2","slot":null},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"e54c130ce7d9eff5d8b5a9a212c1a47dfc6b4d2964ece3d2c3d9267b0e9961f0","slot":null},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451784562},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmbUmyKOaYqHAAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":534808027998,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"2f7c82ff0c7ad64811b91975ba163c1777c02ffcdd753f8eae3737d4c3bf382c","slot":null},{"block":null,"method":"getTokenSupply","params":["XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA",{"commitment":"confirmed"}],"result_hash":"a304010c2a12b84ea56bac7f72f14993a055ca79b4f36e5c1e1171b15b9c63c5","slot":null},{"block":null,"method":"getAccountInfo","params":["XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451784581},"value":{"data":["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","base64"],"executable":false,"lamports":5623680,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":680}},"result_hash":"070dff1ce08f2d3947dcc8536d139382207a105ca48c1ff8dd5e544d956d2bce","slot":null}],"registry_entry":{"chain":"Solana","contract":"XsuxRGDzbLjnJ72v74b7p9VY6N66uYgTCyfwwRjVCJA","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-09-29T22:37:23Z","name":"Marvell","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"MRVL"},"registry_hash":"d6272adf0af69a1c2c18f6a79db79616f69be8189283a420b5ba6e572aa0e4ad","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":451784556,"subject":"GuSRpw1ix66fPBnmBdhz1iEfbph1Wi8tmJc4jLx9vaFt","ticker":"MRVL","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"MRVL"}},"version":1}

Signature

Kht0lrO1UTUwPQzW7xsulLl3D0YQzoRd9gvaCYENpKkswk5sv1L1DNr4EKiMctidIIXy/t7WsA88Degt6cCcCQ==

API call

GET /api/attest/3ca41b7db53bb015765a9804ee9488e4773b1639becc3cbf070836f73aa1c92c

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.