RDDT/GOOGL

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":82607569,"chain":"RobinhoodChain","checked_at":"2026-10-07T16:18:21Z","dev":false,"expires_at":"2026-10-08T16:18:21Z","issuer":"Robinhood","pool":{"base":{"address":"0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","balance":"1784344575325509586539","decimals":18,"symbol":"RDDT"},"chain":"RobinhoodChain","dex":"uniswap-v3","pool":"0xBff5872f9919a70c251747D4A434D1fEFde5E189","quote":{"address":"0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","balance":"1291909412216825420227","decimals":18,"symbol":"GOOGL"}},"quote_share_of_supply":0.07083237273687029,"reads":[{"block":null,"method":"eth_getCode","params":["0xBff5872f9919a70c251747D4A434D1fEFde5E189","latest"],"result_hash":"64aa9da359f48b94ee1a308ad83aa50b9f808282f50482903851669ea0717f1a","slot":null},{"block":82607569,"method":"eth_blockNumber","params":[],"result_hash":"e441aa3fc850e77750475ab9675f86da62034138c19edd8ce3612608cc6a6061","slot":null},{"block":null,"method":"eth_call","params":["0xBff5872f9919a70c251747D4A434D1fEFde5E189","token0()"],"raw_result":"0x05b37fb53a299a1b874a619e1c4c404d52c36f4c","result_hash":"3f79fdaae9784c8213b75830492540bb5c54290857aa3c883e02dd038be59468","slot":null},{"block":null,"method":"eth_call","params":["0xBff5872f9919a70c251747D4A434D1fEFde5E189","token1()"],"raw_result":"0x2e0847e8910a9732eb3fb1bb4b70a580adad4fe3","result_hash":"6730254f3e1e325428b4637c38ccbcdddb3541a1abcbfe80eef71cf008b45022","slot":null},{"block":null,"method":"eth_call","params":["0xBff5872f9919a70c251747D4A434D1fEFde5E189","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0xBff5872f9919a70c251747D4A434D1fEFde5E189","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xBff5872f9919a70c251747D4A434D1fEFde5E189","factory()"],"raw_result":"0x1f7d7550b1b028f7571e69a784071f0205fd2efa","result_hash":"bf7614e6e838b22e4363dfcb3022451641875235ca13e64f8d2d8c3334ff85f3","slot":null},{"block":null,"method":"eth_call","params":["0xBff5872f9919a70c251747D4A434D1fEFde5E189","fee()"],"raw_result":"10000","result_hash":"328d48ab2376d2f42d3af5ba69086143c8f5fe883ed195a8280b2154a5711a33","slot":null},{"block":null,"method":"eth_call","params":["0x1f7d7550B1b028f7571E69A784071F0205FD2EfA","getPool","0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","0x2710"],"raw_result":"0xbff5872f9919a70c251747d4a434d1fefde5e189","result_hash":"425edd3124f6af2ba7b86d3fff4761336f54947d4bc8713b5c562fe85f65b871","slot":null},{"block":null,"method":"eth_call","params":["0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","symbol()"],"raw_result":"Some(\"RDDT\")","result_hash":"69c4ad830f110c82b8a8b207f5d89ec84a67804e1a60de873db8bfa0c3b44d9a","slot":null},{"block":null,"method":"eth_call","params":["0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","balanceOf","0xBff5872f9919a70c251747D4A434D1fEFde5E189"],"raw_result":"Some(\"1784344575325509586539\")","result_hash":"90c6e00837a5c2bbc2cddf99f3e9a3c3fded886217b8c2dc8f08f600d0d34f7e","slot":null},{"block":null,"method":"eth_call","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","symbol()"],"raw_result":"Some(\"GOOGL\")","result_hash":"a2b75dd5b4415a9dfebb356f71f032dc5cf92185661297a13820f4bc2960bec1","slot":null},{"block":null,"method":"eth_call","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","balanceOf","0xBff5872f9919a70c251747D4A434D1fEFde5E189"],"raw_result":"Some(\"1291909412216825420227\")","result_hash":"a2e267c5ef810b99b58db613ee177e19384473b1f64cddc67e4ea6de3a52c3c0","slot":null},{"block":null,"method":"eth_call","params":["0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","symbol()"],"raw_result":"Some(\"RDDT\")","result_hash":"69c4ad830f110c82b8a8b207f5d89ec84a67804e1a60de873db8bfa0c3b44d9a","slot":null},{"block":null,"method":"eth_call","params":["0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","name()"],"raw_result":"Some(\"Reddit • Robinhood Token\")","result_hash":"45ebe8a0e8f57365e07ef5de41adc8fbb1fcfd33115cd7c998591602c72a1c83","slot":null},{"block":null,"method":"eth_call","params":["0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","totalSupply()"],"raw_result":"Some(\"15095895830000000000000\")","result_hash":"fb3cb48c6802031b6df6f38be8a772e0557d3be9ac4160d813cec5951fe7713a","slot":null},{"block":null,"method":"eth_call","params":["0x05b37Fb53A299a1b874A619e1c4C404D52C36F4C","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_call","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","symbol()"],"raw_result":"Some(\"GOOGL\")","result_hash":"a2b75dd5b4415a9dfebb356f71f032dc5cf92185661297a13820f4bc2960bec1","slot":null},{"block":null,"method":"eth_call","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","name()"],"raw_result":"Some(\"Alphabet Class A • Robinhood Token\")","result_hash":"5ac77fdd5d1a82ba2af3bcc8f5a74731c156f801f70079f3634ac7d2744251dc","slot":null},{"block":null,"method":"eth_call","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","totalSupply()"],"raw_result":"Some(\"18238968458900000000000\")","result_hash":"ffe40e5b659fb44977b4b31d3575ad7424e1b1ad68aee39b460138223e513e1e","slot":null},{"block":null,"method":"eth_call","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","uiMultiplier()"],"raw_result":"1000193924414112587","result_hash":"2c4b00ace73144a254e8c418fb76b89c254f0b8bc34abc45491eff8d4ac690ff","slot":null},{"block":null,"method":"eth_getCode","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"RobinhoodChain","contract":"0x2e0847E8910a9732eB3fb1bb4b70a580ADAD4FE3","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-07T15:55:09Z","name":"Alphabet Class A","source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"GOOGL"},"registry_hash":"d506cc7387a16b9f48e7ff3694fde5bb980f86cbf71f737d83495780d0598787","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xBff5872f9919a70c251747D4A434D1fEFde5E189","ticker":"GOOGL","verdict":{"Verified":{"issuer":"Robinhood","ticker":"GOOGL"}},"version":1}

Signature

8t/AeesMABfkUT9gO8SUlMeKeLIUpN8VMaZT0A7p4z7ZoeM5RFc5yu1Uxrp8OFJikLVNtbs4rBrmqtUNE+x6CQ==

API call

GET /api/attest/63b1074e0d459675d0add96daa3883ce0855d3580fb8aac829e52a9949c58a53

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.