ABTx/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":"2026-10-05T13:28:50Z","dev":false,"expires_at":"2026-10-06T13:28:50Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsHtf5RpxsQ7jeJ9ivNewouZKJHbPxhPoEy6yYvULr7","balance":"1348961098","decimals":8,"symbol":"ABTx"},"chain":"Solana","dex":"raydium-clmm","pool":"8YQvLk8cuMuaQHGnkQfB7UyG6xYGJyDueFRmfjs9m3Qw","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"302131445","decimals":6,"symbol":null}},"quote_share_of_supply":0.00009673501602317716,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"b60915bd5470c0574582c603946007de3cabec9b6abdce92ee38e3778b07c8e0","slot":453592858},{"block":null,"method":"getAccountInfo","params":["8YQvLk8cuMuaQHGnkQfB7UyG6xYGJyDueFRmfjs9m3Qw",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":453592859},"value":{"data":["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","base64"],"executable":false,"lamports":11637147,"owner":"CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK","rentEpoch":18446744073709551615,"space":1544}},"result_hash":"6a5fcd316a31cf1018eb504526da829da4d4a8fb3137a6c359b9bcebf46abe73","slot":453592859},{"block":null,"method":"getTokenAccountBalance","params":["9kFtWogYGPRXt6gwijfAMNA7AE7rFbXA1Yox17yjqdX9",{"commitment":"confirmed"}],"result_hash":"02feb6fcc2e470f086b564bb1f89982cb8eb8ae81486ba703946eaf8957a8e31","slot":453592860},{"block":null,"method":"getTokenAccountBalance","params":["CKdBFHZJcK7zjzLBZCR53URGfFtW8XEmfwwWhZAsQE58",{"commitment":"confirmed"}],"result_hash":"624a5e00ced6cd59a12c076ff2db21a499266b698556ba3d1d372aae6c05e016","slot":453592861},{"block":null,"method":"getMultipleAccounts","params":[["XsHtf5RpxsQ7jeJ9ivNewouZKJHbPxhPoEy6yYvULr7","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"18282fb046c54684db7845631d8e396ec4a8d7a4b2a11a04920e267d3a384d81","slot":453592862},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"8352a55ba04a6a940ab6be2c2ed024540524da5fb77abe2626355d25d459e535","slot":453592863},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":453592864},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmbE9SI6NR0HQAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":535338983427,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"e6505fb7604b6dcdaa879e1817dfec4f9e1bfc67b484d357c5be550363aaf5da","slot":453592864},{"block":null,"method":"getTokenSupply","params":["XsHtf5RpxsQ7jeJ9ivNewouZKJHbPxhPoEy6yYvULr7",{"commitment":"confirmed"}],"result_hash":"f31c02a967e3eca4e312f50fc3a804850ce8c41aaa0e9df5011074f89d084152","slot":453592882},{"block":null,"method":"getAccountInfo","params":["XsHtf5RpxsQ7jeJ9ivNewouZKJHbPxhPoEy6yYvULr7",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":453592883},"value":{"data":["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","base64"],"executable":false,"lamports":5602800,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":677}},"result_hash":"882146d2cb000b5f17268fa7e23161f3fc0c6b2c7c0e60735fcaabf91c5e904d","slot":453592883}],"registry_entry":{"chain":"Solana","contract":"XsHtf5RpxsQ7jeJ9ivNewouZKJHbPxhPoEy6yYvULr7","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-10-05T13:14:21Z","name":"Abbott","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"ABT"},"registry_hash":"c3417860a41817105ac89f17bd9c1f1e642dedd9c2b2193b7278da3762e0773e","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":453592858,"subject":"8YQvLk8cuMuaQHGnkQfB7UyG6xYGJyDueFRmfjs9m3Qw","ticker":"ABT","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"ABT"}},"version":1}

Signature

A7qSME9/SqNe5LqBo/n3trL+YtoOzKujgbqp0BOYeXT2xrQ9GNqQiO8wG8I5NG5UpU53qUHQVI2sbGafCx1aCQ==

API call

GET /api/attest/b37c5e66bac6ac90db6147b2ebd64ec155ddb9225a49879e6a97ce9439fd60a2

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.