WETH/RBLX

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":76127483,"chain":"RobinhoodChain","checked_at":"2026-09-30T01:36:40Z","dev":false,"expires_at":"2026-10-01T01:36:40Z","issuer":"Robinhood","pool":{"base":{"address":"0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","balance":"30098085384593939503","decimals":18,"symbol":"WETH"},"chain":"RobinhoodChain","dex":"uniswap-v3","pool":"0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3","quote":{"address":"0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","balance":"3479147670260986810080","decimals":18,"symbol":"RBLX"}},"quote_share_of_supply":0.184908269865076,"reads":[{"block":null,"method":"eth_getCode","params":["0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3","latest"],"result_hash":"c3d5f8da0b1bc3bb7db1e2a67d7e068f11547044911452299404bdf339605049","slot":null},{"block":76127483,"method":"eth_blockNumber","params":[],"result_hash":"5d994f0c1003665b294cdd009c6b7176b50021a4c8d6f87650e2842200b03bf2","slot":null},{"block":null,"method":"eth_call","params":["0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3","token0()"],"raw_result":"0x0bd7d308f8e1639fab988df18a8011f41eacad73","result_hash":"de544c5c8fa36cc133d3195abda0458ac2fac1d8dc7a92dfa423a4c9aa1b415d","slot":null},{"block":null,"method":"eth_call","params":["0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3","token1()"],"raw_result":"0xf0c4bf4c582cb3836e98394b1d4e7b7281101be8","result_hash":"3a92be44655d89b87b455f2d17bb80f6069d226456f69a9eae841111b777663a","slot":null},{"block":null,"method":"eth_call","params":["0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3","factory()"],"raw_result":"Some(0x1f7d7550b1b028f7571e69a784071f0205fd2efa)","result_hash":"3a5325de1b5dc50662a9e2ec44d8428ded4306d2bd46195f62299474690e30aa","slot":null},{"block":null,"method":"eth_call","params":["0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","symbol()"],"raw_result":"Some(\"WETH\")","result_hash":"dc9a1e89eb43cbff5ed113508a53364a9573ef16fa5feb01fc948b3da8bfe14b","slot":null},{"block":null,"method":"eth_call","params":["0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","balanceOf","0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3"],"raw_result":"Some(\"30098085384593939503\")","result_hash":"9fc67a2db12089debeda3bcd84e5d977ae180614c5535cf7f12efe5cb55fea04","slot":null},{"block":null,"method":"eth_call","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","symbol()"],"raw_result":"Some(\"RBLX\")","result_hash":"0e36090b3837263eabe41f0cd5f3e905de99b35a7aec811cbb8bd9e5bb87d806","slot":null},{"block":null,"method":"eth_call","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","balanceOf","0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3"],"raw_result":"Some(\"3479147670260986810080\")","result_hash":"9d8bcb932fa95bab0613f72f4751f8c743541a4bb600bca88fd6e8a5e4940266","slot":null},{"block":null,"method":"eth_call","params":["0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","symbol()"],"raw_result":"Some(\"WETH\")","result_hash":"dc9a1e89eb43cbff5ed113508a53364a9573ef16fa5feb01fc948b3da8bfe14b","slot":null},{"block":null,"method":"eth_call","params":["0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","name()"],"raw_result":"Some(\"WETH\")","result_hash":"dc9a1e89eb43cbff5ed113508a53364a9573ef16fa5feb01fc948b3da8bfe14b","slot":null},{"block":null,"method":"eth_call","params":["0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","totalSupply()"],"raw_result":"Some(\"34799484686035014041813\")","result_hash":"c179a4d06df6efe80745d5344639ed84f7e7c3b20843f9152ce18fe98bbc2b24","slot":null},{"block":null,"method":"eth_call","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","symbol()"],"raw_result":"Some(\"RBLX\")","result_hash":"0e36090b3837263eabe41f0cd5f3e905de99b35a7aec811cbb8bd9e5bb87d806","slot":null},{"block":null,"method":"eth_call","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","name()"],"raw_result":"Some(\"Roblox • Robinhood Token\")","result_hash":"984f64be83b7ebb29e16e16a55ac923abf03ef425349c032061f04bbcf3b39ab","slot":null},{"block":null,"method":"eth_call","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","totalSupply()"],"raw_result":"Some(\"18815533090000000000000\")","result_hash":"a844b8b079314f867cda0b0a5603daca72cc1a08f02a0e012338ea7de947dcf8","slot":null},{"block":null,"method":"eth_call","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"RobinhoodChain","contract":"0xF0C4BF4C582cb3836e98394b1d4e7B7281101bE8","decimals":18,"issuer":"Robinhood","last_checked":"2026-09-30T00:37:24Z","name":"Roblox","source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"RBLX"},"registry_hash":"5524ad353114ce82e4459bdb0533016e63f15d54f628b91498b20cf2b964d0de","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x6d25417718A8D6c529130a8ccC4BfBf0a18219D3","ticker":"RBLX","verdict":{"Verified":{"issuer":"Robinhood","ticker":"RBLX"}},"version":1}

Signature

eDR5WBQf0Q+bN1mqzMQWF/s8Qf5WqJXS1lYwpR0O8TBLF2uQfGE2oHoIYF2plXrkVNhMM9lothH8MS+nYUavBQ==

API call

GET /api/attest/8b422a0f9d2b5bda0162ba73591466d8a490f81436096f65f15ccc20e61c71dd

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.