USDG/SOXX

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":76082222,"chain":"RobinhoodChain","checked_at":"2026-09-30T00:20:47Z","dev":false,"expires_at":"2026-10-01T00:20:47Z","issuer":"Robinhood","pool":{"base":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"26518132590","decimals":6,"symbol":"USDG"},"chain":"RobinhoodChain","dex":"uniswap-v3","pool":"0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67","quote":{"address":"0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","balance":"27160764279836633934","decimals":18,"symbol":"SOXX"}},"quote_share_of_supply":0.1971237869103762,"reads":[{"block":null,"method":"eth_getCode","params":["0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67","latest"],"result_hash":"99cb05e938861badcf04f7071f555e685dd8b411cb9a80663a81f41e41317919","slot":null},{"block":76082222,"method":"eth_blockNumber","params":[],"result_hash":"d8d1969c066f094881f90e27f4132b8016688f2c5c9d1bf64c55fa7f505c11f6","slot":null},{"block":null,"method":"eth_call","params":["0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67","token0()"],"raw_result":"0x5fc5360d0400a0fd4f2af552add042d716f1d168","result_hash":"742eb919f060d78d6f55d9d90c592b8d91ea7358553fc7e37cb579cf21192137","slot":null},{"block":null,"method":"eth_call","params":["0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67","token1()"],"raw_result":"0x75742c18bc1f1c5c5f448f4c9d9c6f66dafaaa38","result_hash":"2c43f4264c8d0a6a9a008e1a1ce2ed2a4cec5c6b62fa722765a75e0709fdb8b7","slot":null},{"block":null,"method":"eth_call","params":["0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67","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","0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67"],"raw_result":"Some(\"26518132590\")","result_hash":"e17389e9f469f616818c7b4b5ef95dfa4c6a7af5b65200ee37a0620e7e0959a7","slot":null},{"block":null,"method":"eth_call","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","symbol()"],"raw_result":"Some(\"SOXX\")","result_hash":"be633beba9daf0bfda474e7bb66cee1d2b8117608f5c8721bc190ce40841c07b","slot":null},{"block":null,"method":"eth_call","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","balanceOf","0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67"],"raw_result":"Some(\"27160764279836633934\")","result_hash":"52661dd3392ce824ecf630cda3e435e89e8487364a5d1527f2b1a285c590b41c","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(\"683057258909461\")","result_hash":"3142e10dc87a1fc9e6703ce3e2e4371004f1cef266d780011a30464ee2ebb354","slot":null},{"block":null,"method":"eth_call","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","symbol()"],"raw_result":"Some(\"SOXX\")","result_hash":"be633beba9daf0bfda474e7bb66cee1d2b8117608f5c8721bc190ce40841c07b","slot":null},{"block":null,"method":"eth_call","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","name()"],"raw_result":"Some(\"iShares Semiconductor ETF • Robinhood Token\")","result_hash":"ea20eca1fa4c46cf0ae55c6d03e9c5aa27bf31dc59c37bcb358b9b5f54a150f7","slot":null},{"block":null,"method":"eth_call","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","totalSupply()"],"raw_result":"Some(\"137785321120000000000\")","result_hash":"eda921b33a40c11a1bf245a05bb18e10d2197895728b0e908301820bf01ca3b4","slot":null},{"block":null,"method":"eth_call","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","uiMultiplier()"],"raw_result":"1000450838210425960","result_hash":"2885ab14cd30d15b6fcfab4ed272a1731408fd11a0de83a1fe6c12cae3c9b302","slot":null},{"block":null,"method":"eth_getCode","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"RobinhoodChain","contract":"0x75742c18BC1f1C5c5f448f4C9D9C6F66dafAAa38","decimals":18,"issuer":"Robinhood","last_checked":"2026-09-29T23:37:24Z","name":"iShares Semiconductor ETF","source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"SOXX"},"registry_hash":"b3f72fc9046ef9a37e433405d5916bce13581b85d8cce5889f24cf56e53b77b4","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x0663E66c880E27a5cE3c4c25234aB64eAd7dFF67","ticker":"SOXX","verdict":{"Verified":{"issuer":"Robinhood","ticker":"SOXX"}},"version":1}

Signature

L9G8lYe/FSw+dtNCEbYo6q/U2y8B+dRgvkyC0eGH2jKjEp/BXsCAsxkX50nzUefdUP0xkEUDFyXAYpwo2v5vBg==

API call

GET /api/attest/46498886030e575f6c949fbf2a63ee14f3ce5eb053bc1f4eace6c76954e9c80a

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.