GOOGLx/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":"2026-09-30T00:15:01Z","dev":false,"expires_at":"2026-10-01T00:15:01Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsCPL9dNWBMvFtTmwcCA5v3xWPSMEBCszbQdiLLq6aN","balance":"118814416046","decimals":8,"symbol":"GOOGLx"},"chain":"Solana","dex":"raydium-clmm","pool":"B8YAwjGYk6qidWzGBXMAxP7nYfG8g74EZ3Y4gFSsobRw","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"256038913599","decimals":6,"symbol":null}},"quote_share_of_supply":0.007407107204030446,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"19e0cb85685767c9ab827463af2cca6654d38c6424a41b02a87497a1e693e7cd","slot":451799850},{"block":null,"method":"getAccountInfo","params":["B8YAwjGYk6qidWzGBXMAxP7nYfG8g74EZ3Y4gFSsobRw",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451799852},"value":{"data":["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","base64"],"executable":false,"lamports":11658134,"owner":"CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK","rentEpoch":18446744073709551615,"space":1544}},"result_hash":"aff6061d25b313a0464df4cba03ddc725aa67ff948e756095e7901349729cd64","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["7fyQSFJLS9hcmp53VTKnvvQ7Rpt2KcZkhvJyKDRJivYg",{"commitment":"confirmed"}],"result_hash":"a79726f83cb8a9c8f3009586e11f3ee5b3a0eccdaf7a5009626fad89db3ffd3a","slot":null},{"block":null,"method":"getTokenAccountBalance","params":["8egAoaRyscTY8Quo1AKhCCZmXHDdBkUu2WSCF86g7kZK",{"commitment":"confirmed"}],"result_hash":"e3e8b79c29b7599da50ba55cdc24f3f75250eb74d362e8786f51765e633b0aef","slot":null},{"block":null,"method":"getMultipleAccounts","params":[["XsCPL9dNWBMvFtTmwcCA5v3xWPSMEBCszbQdiLLq6aN","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"b8c23306c4b78824878a9bd62c3c4dd97317076204a750345bc4ba13abf7e8b5","slot":null},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"af66355cf58b4fefdd5528f37a3869a779d4ab89040480bfac5aaf3c289750fb","slot":null},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451799859},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmb+YVpfZQpHAAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":534808027998,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"4d5a17d55a82e19d0e4ff5a9c5f9154a0c4581d9d077b8940bc7898fc5c285cc","slot":null},{"block":null,"method":"getTokenSupply","params":["XsCPL9dNWBMvFtTmwcCA5v3xWPSMEBCszbQdiLLq6aN",{"commitment":"confirmed"}],"result_hash":"9cb353415cf8647d19e2f7977f3a99760fd7a0f7036b1cb5e9f8bc061c8440ec","slot":null},{"block":null,"method":"getAccountInfo","params":["XsCPL9dNWBMvFtTmwcCA5v3xWPSMEBCszbQdiLLq6aN",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.0","slot":451799879},"value":{"data":["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","base64"],"executable":false,"lamports":31644560,"owner":"TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb","rentEpoch":18446744073709551615,"space":683}},"result_hash":"b3724c6efe1c848857d1013909793de4bf945533c920c20ab62eb350afd7297d","slot":null}],"registry_entry":{"chain":"Solana","contract":"XsCPL9dNWBMvFtTmwcCA5v3xWPSMEBCszbQdiLLq6aN","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-09-29T23:37:23Z","name":"Alphabet","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"GOOGL"},"registry_hash":"b3f72fc9046ef9a37e433405d5916bce13581b85d8cce5889f24cf56e53b77b4","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":451799850,"subject":"B8YAwjGYk6qidWzGBXMAxP7nYfG8g74EZ3Y4gFSsobRw","ticker":"GOOGL","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"GOOGL"}},"version":1}

Signature

k83Bk5G04X9DzjfzK0EvbUD4gumjOJBf+tdyFrv1lOj1fO2dOY4RAQoGwi3h/uVuOZsqtfLYbPyTwiE8ThXqAQ==

API call

GET /api/attest/31d5c389a0aa8ab57e1b8dfa2a270a8f5d69c2b977ac75b111945e0a9527a39f

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.