AVGO/USDG

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":76081532,"chain":"RobinhoodChain","checked_at":"2026-09-30T00:19:37Z","dev":false,"expires_at":"2026-10-01T00:19:37Z","issuer":"Robinhood","pool":{"base":{"address":"0x156E175DD063a8cE274C50654eF40e0032b3fbcF","balance":"109443546376986166191","decimals":18,"symbol":"AVGO"},"chain":"RobinhoodChain","dex":"uniswap-v3","pool":"0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c","quote":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"117907885847","decimals":6,"symbol":"USDG"}},"quote_share_of_supply":0.18738014613246043,"reads":[{"block":null,"method":"eth_getCode","params":["0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c","latest"],"result_hash":"c7a7d941ebcb926e48de125a80b6e78282b498580a4efa0970f36ba8227a2285","slot":null},{"block":76081532,"method":"eth_blockNumber","params":[],"result_hash":"ec1fb69414f4d9f71292559de5bdfff802da8b5d4388a2ff7969aa4cc606a47e","slot":null},{"block":null,"method":"eth_call","params":["0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c","token0()"],"raw_result":"0x156e175dd063a8ce274c50654ef40e0032b3fbcf","result_hash":"f110d2f84a82ac6037ee8bfa2d169527bac45c0cae565d2b9cdce81703df5953","slot":null},{"block":null,"method":"eth_call","params":["0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c","token1()"],"raw_result":"0x5fc5360d0400a0fd4f2af552add042d716f1d168","result_hash":"742eb919f060d78d6f55d9d90c592b8d91ea7358553fc7e37cb579cf21192137","slot":null},{"block":null,"method":"eth_call","params":["0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c","factory()"],"raw_result":"Some(0x1f7d7550b1b028f7571e69a784071f0205fd2efa)","result_hash":"3a5325de1b5dc50662a9e2ec44d8428ded4306d2bd46195f62299474690e30aa","slot":null},{"block":null,"method":"eth_call","params":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","symbol()"],"raw_result":"Some(\"AVGO\")","result_hash":"7d3ba2861fdea50afe1e4103770890f89cdfcdd91281ba06ca7679bd3859bfd5","slot":null},{"block":null,"method":"eth_call","params":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","balanceOf","0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c"],"raw_result":"Some(\"109443546376986166191\")","result_hash":"d7156fba12f43c340373be20177bf3aab468ae916dc922ef096c815fb039397a","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","0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c"],"raw_result":"Some(\"117907885847\")","result_hash":"ec738453df72922f35ab5ecd7005aa732b8701bcddf007670d3d619ae03de7c3","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":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","symbol()"],"raw_result":"Some(\"AVGO\")","result_hash":"7d3ba2861fdea50afe1e4103770890f89cdfcdd91281ba06ca7679bd3859bfd5","slot":null},{"block":null,"method":"eth_call","params":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","name()"],"raw_result":"Some(\"Broadcom • Robinhood Token\")","result_hash":"cb7d3e55bf061471f64f904e2d023e6a971607f4f2623f24390f7a945ebc0fd4","slot":null},{"block":null,"method":"eth_call","params":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","totalSupply()"],"raw_result":"Some(\"584072265050000000000\")","result_hash":"7e80b64fe068045ed6975576ef2a2968a4437006dd934f0e3d652f5fbf138046","slot":null},{"block":null,"method":"eth_call","params":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","uiMultiplier()"],"raw_result":"1001257318662278132","result_hash":"101089c7a8463b2ed6c5d75fb45a59d83ea24d1cb98fe20ed5d5081fd310a938","slot":null},{"block":null,"method":"eth_getCode","params":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x156E175DD063a8cE274C50654eF40e0032b3fbcF","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"RobinhoodChain","contract":"0x156E175DD063a8cE274C50654eF40e0032b3fbcF","decimals":18,"issuer":"Robinhood","last_checked":"2026-09-29T23:37:24Z","name":"Broadcom","source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"AVGO"},"registry_hash":"b3f72fc9046ef9a37e433405d5916bce13581b85d8cce5889f24cf56e53b77b4","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x5B7C404f1d7d77F9f3885aB13d7764F8a173028c","ticker":"AVGO","verdict":{"Verified":{"issuer":"Robinhood","ticker":"AVGO"}},"version":1}

Signature

UqXv8HbFSslkPzaQHF7vhl6909OCisBW9Ovp+4fmGjZhWKlGFGK59HNKtJ2gGP6OX8XyKKFR/T2b8oaDTjq/CQ==

API call

GET /api/attest/ae2eedf59d8305c25cd757a155e5503867f7ef69038cd7ecbd82ef224fa402c0

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.