SKHYx/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":"2026-10-02T03:44:14Z","dev":false,"expires_at":"2026-10-03T03:44:14Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsnhgGRQwhExfS2bmWzR6EYddKGPRGDEjeJsatkmKqU","balance":"231270666","decimals":8,"symbol":"SKHYx"},"chain":"Solana","dex":"orca-whirlpool","pool":"6Sjv3tYEQRkSpWu312tAX3unUuTp5Frg95yFZv9FHE7B","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"433816327","decimals":6,"symbol":null}},"quote_share_of_supply":0.000029586247913808353,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"ff00acc3712701e99a9454b96c84a76cf17e6ecd9d0c0f35c8706dee5db60aad","slot":452492497},{"block":null,"method":"getAccountInfo","params":["6Sjv3tYEQRkSpWu312tAX3unUuTp5Frg95yFZv9FHE7B",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":452492498},"value":{"data":["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","base64"],"executable":false,"lamports":3967480,"owner":"whirLbMiicVdio4qvUfM5KAg6Ct8VwpYzGff3uctyCc","rentEpoch":18446744073709551615,"space":653}},"result_hash":"68db8c57950071df54bb81102f88f7a21de1795e98fed5cc4a336f7b2cd1fd03","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["871bjFm4EeyZWbNAkmejqYk7J1ATubgaCZ3Pvv4dMPw4",{"commitment":"confirmed"}],"result_hash":"dfab099a30ae8c166df23c3f2a966a8ee3b3437e9bb851ece085a524d2e2332f","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["FEJMgz291ztUNAEeSo2JhkTkndhn8DSPxvEUT9GKeCh6",{"commitment":"confirmed"}],"result_hash":"87fade134ab8b17faf69c16eaa04858829585c7b2ecf44ad011c1fa9358d52d0","slot":null},{"block":null,"method":"getMultipleAccounts","params":[["XsnhgGRQwhExfS2bmWzR6EYddKGPRGDEjeJsatkmKqU","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"4ada551351440831dc99def33b62f7a408e32d011a5507299f993f54c2f5684a","slot":null},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"996a0a28f750a1513b65d70e12662f9bee66320c49bec1e93d7b15df8c77d5cb","slot":null},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":452492503},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmb1D46kiOFHQAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":534826842998,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"9d7317b16138a1989ed72c156f64a9c3b11c62994c556bf30b9afb011636d0ab","slot":null},{"block":null,"method":"getTokenSupply","params":["XsnhgGRQwhExfS2bmWzR6EYddKGPRGDEjeJsatkmKqU",{"commitment":"confirmed"}],"result_hash":"1aabe1f4015fa881c850fb02862becdc546f1895cb7a25595dc10d2c7effe719","slot":null},{"block":null,"method":"getAccountInfo","params":["XsnhgGRQwhExfS2bmWzR6EYddKGPRGDEjeJsatkmKqU",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":452492522},"value":{"data":["AQAAAGVqQkIv6okUBqQZ0dHeCPQqhHlBtaGulevOYZrDFyk0Z+Zd/xsHAAAIAQEAAAD/3+wbzSzTg5PITaoIyRzA041nf/jQq3tdAz8A9zLMMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARIAQABD+fHuLje4B+pFy3TmAJcivsAJKWAm5ORVi0NeJKXpxgfo2bN5vnYMimtRptt2MGYYYM/f3Q/jmjBgJMrz/lUzDAAgAEP58e4uN7gH6kXLdOYAlyK+wAkpYCbk5FWLQ14kpenGBgABAAEZADgABm9ZIlHMR3R4JaWa0UIupDVz9SjaXe4q94ErMU+ZReMAAAAAAADwPwAAAAAAAAAAAAAAAAAA8D8aACEA/9/sG80s04OTyE2qCMkcwNONZ3/40Kt7XQM/APcyzDAABABBAEP58e4uN7gH6kXLdOYAlyK+wAkpYCbk5FWLQ14kpenGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADgBAAEP58e4uN7gH6kXLdOYAlyK+wAkpYCbk5FWLQ14kpenGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAATAKgAQ/nx7i43uAfqRct05gCXIr7ACSlgJuTkVYtDXiSl6cYH6Nmzeb52DIprUabbdjBmGGDP390P45owYCTK8/5VMw8AAABTSyBoeW5peCB4U3RvY2sFAAAAU0tIWXhEAAAAaHR0cHM6Ly94c3RvY2tzLW1ldGFkYXRhLmJhY2tlZC5maS90b2tlbnMvU29sYW5hL1NLSFl4L21ldGFkYXRhLmpzb24AAAAA","base64"],"executable":false,"lamports":5630640,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":681}},"result_hash":"26ef3dbc9e1d85b0fe8eaeb3564a830e31513fb2a51f9a98dea5f0d07fd6dc8a","slot":null}],"registry_entry":{"chain":"Solana","contract":"XsnhgGRQwhExfS2bmWzR6EYddKGPRGDEjeJsatkmKqU","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-10-02T02:57:54Z","name":"SK hynix","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"SKHY"},"registry_hash":"53c8e8dd7a9461a20835e5780db9dce946e99ae376e68d4732a3a0e7193703df","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":452492497,"subject":"6Sjv3tYEQRkSpWu312tAX3unUuTp5Frg95yFZv9FHE7B","ticker":"SKHY","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"SKHY"}},"version":1}

Signature

WTYP5OvdRnrzVBslh9G1E7ZYaK/jFw56HKkVzVH6KfEfGjUHG2PDh1MBEri/Go/bDGjgqpkb3iHXr7e1cxG4Dg==

API call

GET /api/attest/daf8bc61116c0b6d712e2e871644eedfe993213419aca44466879ef2759aa6c1

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.