USDG/MSFT

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":76032232,"chain":"RobinhoodChain","checked_at":"2026-09-29T22:57:27Z","dev":false,"expires_at":"2026-09-30T22:57:27Z","issuer":"Robinhood","pool":{"base":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"349039823125","decimals":6,"symbol":"USDG"},"chain":"RobinhoodChain","dex":"uniswap-v3","pool":"0xeb60bCD1D920ad6E102690CCFC6fB488899E1510","quote":{"address":"0xe93237C50D904957Cf27E7B1133b510C669c2e74","balance":"428615437551134945800","decimals":18,"symbol":"MSFT"}},"quote_share_of_supply":0.08643638604638958,"reads":[{"block":null,"method":"eth_getCode","params":["0xeb60bCD1D920ad6E102690CCFC6fB488899E1510","latest"],"result_hash":"ac3b93e24efd4877da40fcc780d2bdd2abfcbb70d8c718369b4812227a39941e","slot":null},{"block":76032232,"method":"eth_blockNumber","params":[],"result_hash":"247431cba88f9d2ec19358bbebbc3d8ec0de4abfde42b05369991d91fb60c8cb","slot":null},{"block":null,"method":"eth_call","params":["0xeb60bCD1D920ad6E102690CCFC6fB488899E1510","token0()"],"raw_result":"0x5fc5360d0400a0fd4f2af552add042d716f1d168","result_hash":"742eb919f060d78d6f55d9d90c592b8d91ea7358553fc7e37cb579cf21192137","slot":null},{"block":null,"method":"eth_call","params":["0xeb60bCD1D920ad6E102690CCFC6fB488899E1510","token1()"],"raw_result":"0xe93237c50d904957cf27e7b1133b510c669c2e74","result_hash":"62e64a5162881b73480f2ee748cd8eae609831459e62bf1a2762caf9c58283e0","slot":null},{"block":null,"method":"eth_call","params":["0xeb60bCD1D920ad6E102690CCFC6fB488899E1510","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0xeb60bCD1D920ad6E102690CCFC6fB488899E1510","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xeb60bCD1D920ad6E102690CCFC6fB488899E1510","factory()"],"raw_result":"Some(0x1f7d7550b1b028f7571e69a784071f0205fd2efa)","result_hash":"3a5325de1b5dc50662a9e2ec44d8428ded4306d2bd46195f62299474690e30aa","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","symbol()"],"raw_result":"Some(\"USDG\")","result_hash":"5cbfd9547b12ffd28d96e5f55c97290c4f230a8d7ad7bbe91dc15f2e61c1a3c5","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","decimals()"],"raw_result":"Some(6)","result_hash":"c68fe6989b1835302197d0af5be845dfab10ed9f9632205eb4ab5b949b9e1a6a","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balanceOf","0xeb60bCD1D920ad6E102690CCFC6fB488899E1510"],"raw_result":"Some(\"349039823125\")","result_hash":"ae4d56fc3c68e3d09613db32a8c87e3e75e53ba6fd0620206ff63e02d12263ab","slot":null},{"block":null,"method":"eth_call","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","symbol()"],"raw_result":"Some(\"MSFT\")","result_hash":"a07ca103f32a2b2824c2a738b2a3692a19c4cbc3a9b084317dee5f5c8b2c47e1","slot":null},{"block":null,"method":"eth_call","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","balanceOf","0xeb60bCD1D920ad6E102690CCFC6fB488899E1510"],"raw_result":"Some(\"428615437551134945800\")","result_hash":"f9dc56d5754cb6029b186c1d6c952bfbdaf483740c7dfaaec77b850238066636","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","symbol()"],"raw_result":"Some(\"USDG\")","result_hash":"5cbfd9547b12ffd28d96e5f55c97290c4f230a8d7ad7bbe91dc15f2e61c1a3c5","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","name()"],"raw_result":"Some(\"Global Dollar\")","result_hash":"e34c795a5a7df6a2269bde7247321204357731d7742ef5974b04eb6899db8b11","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","decimals()"],"raw_result":"Some(6)","result_hash":"c68fe6989b1835302197d0af5be845dfab10ed9f9632205eb4ab5b949b9e1a6a","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","totalSupply()"],"raw_result":"Some(\"683754660025993\")","result_hash":"0e4bacc4bdcf383c2fae40fbb3d330d8ebf51d9ae7e838f6db679ff12c3f7419","slot":null},{"block":null,"method":"eth_call","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","symbol()"],"raw_result":"Some(\"MSFT\")","result_hash":"a07ca103f32a2b2824c2a738b2a3692a19c4cbc3a9b084317dee5f5c8b2c47e1","slot":null},{"block":null,"method":"eth_call","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","name()"],"raw_result":"Some(\"Microsoft • Robinhood Token\")","result_hash":"76c10a24b5772afd303750e0db7cbcc7563fb02c9c19eaa649bc317b78acf484","slot":null},{"block":null,"method":"eth_call","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","totalSupply()"],"raw_result":"Some(\"4958738526170000000000\")","result_hash":"f9213b31eb552e09a4f3153fe4795271b31ea48dcae8f7246b13399e9348fe2c","slot":null},{"block":null,"method":"eth_call","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","uiMultiplier()"],"raw_result":"1000412952576205964","result_hash":"be460320ca218615ae76dbc21510580ad2a80e1888466015407a89cfd535c715","slot":null},{"block":null,"method":"eth_getCode","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0xe93237C50D904957Cf27E7B1133b510C669c2e74","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"RobinhoodChain","contract":"0xe93237C50D904957Cf27E7B1133b510C669c2e74","decimals":18,"issuer":"Robinhood","last_checked":"2026-09-29T22:37:24Z","name":"Microsoft","source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"MSFT"},"registry_hash":"d6272adf0af69a1c2c18f6a79db79616f69be8189283a420b5ba6e572aa0e4ad","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xeb60bCD1D920ad6E102690CCFC6fB488899E1510","ticker":"MSFT","verdict":{"Verified":{"issuer":"Robinhood","ticker":"MSFT"}},"version":1}

Signature

gqdH5yN7ZAP0iF/MiXlNdtcfKGQaSIClWoB+9CB5hldrVLvB9vNJxSYQuVwug8bhrpVwEu6BnjLBVoc9TrThAQ==

API call

GET /api/attest/cc6f33baf536dd449b3eb00cf76f8f9d80c8b2a94abd4bf8c7f39904ba3c483d

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.