JNJx/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":"2026-09-30T00:27:42Z","dev":false,"expires_at":"2026-10-01T00:27:42Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsGVi5eo1Dh2zUpic4qACcjuWGjNv8GCt3dm5XcX6Dn","balance":"4527444","decimals":8,"symbol":"JNJx"},"chain":"Solana","dex":"raydium-clmm","pool":"HesBHBAuMEz7m4iFvqpGWf3amSR68RcX7r9onUmEV5jJ","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"22597360","decimals":6,"symbol":null}},"quote_share_of_supply":6.322964336154199e-7,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"85bfbc4ae08ff3eebaa41de07cda74c1ee5fe393d33d7a952254b24bcf52e831","slot":451802706},{"block":null,"method":"getAccountInfo","params":["HesBHBAuMEz7m4iFvqpGWf3amSR68RcX7r9onUmEV5jJ",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451802709},"value":{"data":["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","base64"],"executable":false,"lamports":11637124,"owner":"CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK","rentEpoch":18446744073709551615,"space":1544}},"result_hash":"bb77ab7267d5beb1e523bef3a2b87ee676368ba03004873d212bd6e743e6ca4e","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["8nQnxYtPAMeyLKf3ofmqhvo3z8UxAp3kwp7y2dVPAAnj",{"commitment":"confirmed"}],"result_hash":"6771bb9afd81cd0eb1e1ea6e8701a59a8eb6baa07138bfb46037931fe8dde626","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["9pptdKBUPwBum7k3ZeYPoawViEiJ1GwCqZtK5d1Tpp8r",{"commitment":"confirmed"}],"result_hash":"2910b60b7f07de5bd07b18569adfd935bfd85fb799f7afc6593655ca67ca66da","slot":null},{"block":null,"method":"getMultipleAccounts","params":[["XsGVi5eo1Dh2zUpic4qACcjuWGjNv8GCt3dm5XcX6Dn","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"27ed4e40642eda5fdb2a9fa41a1168317e86d04a13b23447ecc0a847e9ca30b0","slot":null},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"1b97295fe96f673c668096ec168ffe078724fe76b83b324358d63ccfafa1e4ea","slot":null},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451802714},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmb6kzmr2H0GwAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":534808027998,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"d6d9bf1a5e03f1b03e57c9ee45e3a69d05715bcbf976cb7e191f3f88b3e0f618","slot":null},{"block":null,"method":"getTokenSupply","params":["XsGVi5eo1Dh2zUpic4qACcjuWGjNv8GCt3dm5XcX6Dn",{"commitment":"confirmed"}],"result_hash":"800f22f1554b50896d629d7814bde16188f2ff5ae13653b44e0a6da40f18deba","slot":null},{"block":null,"method":"getAccountInfo","params":["XsGVi5eo1Dh2zUpic4qACcjuWGjNv8GCt3dm5XcX6Dn",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451802731},"value":{"data":["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","base64"],"executable":false,"lamports":5679360,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":688}},"result_hash":"6bae5b4262f7393cc4344e2b609a885e47854080c0a78f39baa682570307567f","slot":null}],"registry_entry":{"chain":"Solana","contract":"XsGVi5eo1Dh2zUpic4qACcjuWGjNv8GCt3dm5XcX6Dn","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-09-29T23:37:23Z","name":"Johnson & Johnson","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"JNJ"},"registry_hash":"b3f72fc9046ef9a37e433405d5916bce13581b85d8cce5889f24cf56e53b77b4","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":451802706,"subject":"HesBHBAuMEz7m4iFvqpGWf3amSR68RcX7r9onUmEV5jJ","ticker":"JNJ","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"JNJ"}},"version":1}

Signature

h/d3QZbyroB4g2bwrAKyoXh7FxeO07b9VvpzCS0lgI9AACznPnqZdiBUIEKCSpuZjmG+uq+usGenx80L9kYoDw==

API call

GET /api/attest/947a5cd31d7f812271351e438401d92c4788aeeb634cea94492ca138dbbe3493

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.