Does NFLX / USDG match its issuer's published contract?

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":91679067,"chain":"robinhood","checked_at":"2026-10-18T09:54:07Z","dev":false,"expires_at":"2026-10-19T09:54:07Z","issuer":"Robinhood","pool":{"base":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"49778283619","decimals":6,"symbol":"USDG"},"chain":"robinhood","dex":"uniswap-v3","pool":"0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E","quote":{"address":"0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","balance":"2083790490422601520114","decimals":18,"symbol":"NFLX"}},"quote_share_of_supply":0.19491083672190926,"reads":[{"block":91679067,"method":"eth_blockNumber","params":[],"result_hash":"410f7fd468fca56ed30e4223582016b2ddbf7eaba08863e48434638dca131f76","slot":null},{"block":null,"method":"eth_call","params":["0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E","token0()"],"raw_result":"0x5fc5360d0400a0fd4f2af552add042d716f1d168","result_hash":"742eb919f060d78d6f55d9d90c592b8d91ea7358553fc7e37cb579cf21192137","slot":null},{"block":null,"method":"eth_call","params":["0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E","token1()"],"raw_result":"0xe0444ef8bf4ed74f74fd73686e2ddf4c1c5591e8","result_hash":"d8b35b9e4ad4bcb5b1dc0620f022ad02f65c7cb00ba014b406deebc05126c837","slot":null},{"block":null,"method":"eth_call","params":["0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E","factory()"],"raw_result":"0x1f7d7550b1b028f7571e69a784071f0205fd2efa","result_hash":"bf7614e6e838b22e4363dfcb3022451641875235ca13e64f8d2d8c3334ff85f3","slot":null},{"block":null,"method":"eth_call","params":["0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E","fee()"],"raw_result":"3000","result_hash":"53232d7da9fd2a1931dcd44af08ec415dd52ab8ecc4037ef5e68eb3753978a2e","slot":null},{"block":null,"method":"eth_call","params":["0x1f7d7550B1b028f7571E69A784071F0205FD2EfA","getPool","0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","0xbb8"],"raw_result":"0x59895c0302f41aeaa129d2fa2442cec01e7ef45e","result_hash":"db9911dbdc0866ce022bbc05699673ac267efa10ecca1a6e4f11a9e3aead93a6","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","0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E"],"raw_result":"Some(\"49778283619\")","result_hash":"e1709cb2b50de9ad773062cf35dd46a463a7c6ad59418a28293c4ca546d0521a","slot":null},{"block":null,"method":"eth_call","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","symbol()"],"raw_result":"Some(\"NFLX\")","result_hash":"4aad8f6a45d12f64b31ddcf493db3cef12a9ebfa584b5a5813f22e263bf65674","slot":null},{"block":null,"method":"eth_call","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","balanceOf","0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E"],"raw_result":"Some(\"2083790490422601520114\")","result_hash":"bd8ee470833f8767b11ee37d6b174bfd8bbbeccdf419615d2082191b79811ebc","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(\"696510571472896\")","result_hash":"3bf47cc44e79235c2a4786a9e16c733cbbc4aa81b60a1a84187551f9e56b0257","slot":null},{"block":null,"method":"eth_call","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","symbol()"],"raw_result":"Some(\"NFLX\")","result_hash":"4aad8f6a45d12f64b31ddcf493db3cef12a9ebfa584b5a5813f22e263bf65674","slot":null},{"block":null,"method":"eth_call","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","name()"],"raw_result":"Some(\"Netflix • Robinhood Token\")","result_hash":"7f0ef608721b80bc72ba4320f1479109afc29ec59187f544551096fe18d27d64","slot":null},{"block":null,"method":"eth_call","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","totalSupply()"],"raw_result":"Some(\"10690993510000000000000\")","result_hash":"11cbdb9866cd98f779a0a028ec20607cd094e16f9dfc23bcc49f500c40fd86c5","slot":null},{"block":null,"method":"eth_call","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"robinhood","contract":"0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-18T09:47:33Z","name":"Netflix","official_deployments":[{"address":"0xE0444EF8BF4eD74f74FD73686e2ddF4C1c5591E8","network":"Robinhood Chain"}],"source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"NFLX"},"registry_hash":"3143486c8ed17e52c07540b096bdf4ef50abfca368b23311d9290e9923561570","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x59895C0302F41aEaa129D2fa2442CEc01E7eF45E","ticker":"NFLX","verdict":{"Verified":{"issuer":"Robinhood","ticker":"NFLX"}},"version":1}

Signature

ac9VwfxRh/bFfLbkA/m4ZlsBaYhq5Azg+zs0MXwnv6t/Pd2v7FyOATlH0tGR9PbEC+rK2D/cv+0vAbDN2qBGCQ==

API call

GET /api/attest/eef30daa839fdad12a8f2d85b0665e3da043c2b366817adf1a73df8b9ba991d9

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.