Does NET / 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":92499498,"chain":"robinhood","checked_at":"2026-10-19T09:10:16Z","dev":false,"expires_at":"2026-10-20T09:10:16Z","issuer":"Robinhood","pool":{"base":{"address":"0x116F00968269B7bfbaD4109cE591d6E74c0601d4","balance":"62928292811022527333","decimals":18,"symbol":"NET"},"chain":"robinhood","dex":"ramses-v3","pool":"0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE","quote":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"17471419268","decimals":6,"symbol":"USDG"}},"quote_share_of_supply":0.09912210653378346,"reads":[{"block":92499498,"method":"eth_blockNumber","params":[],"result_hash":"4ca53beeef7f8bc1815150976d5c1e6fe96c55c08eb0779850997fde70e59b91","slot":null},{"block":null,"method":"eth_call","params":["0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE","token0()"],"raw_result":"0x116f00968269b7bfbad4109ce591d6e74c0601d4","result_hash":"48ed6d572d9ff1add94933a95df39a8d65145fc7c7666d695ef3248304e869fb","slot":null},{"block":null,"method":"eth_call","params":["0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE","token1()"],"raw_result":"0x5fc5360d0400a0fd4f2af552add042d716f1d168","result_hash":"742eb919f060d78d6f55d9d90c592b8d91ea7358553fc7e37cb579cf21192137","slot":null},{"block":null,"method":"eth_call","params":["0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE","factory()"],"raw_result":"0xe0c4ceb92d08ca985bb70fe0a22feb121a9854a8","result_hash":"3acd97ac868973fcda20afc787b251dff09968890029c0107e8fa1018dc5cca8","slot":null},{"block":null,"method":"eth_call","params":["0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE","tickSpacing()"],"raw_result":"100","result_hash":"d77ccb69e3f915ed75b4a2db3ff5893fdd0f433e02fdff100441fb843aae585b","slot":null},{"block":null,"method":"eth_call","params":["0xE0c4ceb92d08CA985bB70fe0a22fEb121A9854A8","getPool","0x116F00968269B7bfbaD4109cE591d6E74c0601d4","0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","100"],"raw_result":"0xe4242b3350b1a8b74e864ec38ec6cd0ea13d7dde","result_hash":"877e16724aa44800c2b9cd3695bd9365cedfd4cd4997b2629e69826bf3ce0792","slot":null},{"block":null,"method":"eth_call","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","symbol()"],"raw_result":"Some(\"NET\")","result_hash":"6672f983671f26b2c204771c443b8f3c7993f53b14a392801c38d9587cdbbda2","slot":null},{"block":null,"method":"eth_call","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","balanceOf","0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE"],"raw_result":"Some(\"62928292811022527333\")","result_hash":"bb618686e274f1f8bc3fa13cd47d203494e2e65eacbbf4f16af5c863d70f26e5","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","0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE"],"raw_result":"Some(\"17471419268\")","result_hash":"521aec22c2f524c6a1503dfd03881d4c6349894a67fcda30d1a916099e8fb50c","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(\"697669926666659\")","result_hash":"42e93220ef2234e568f76d2659117b24919291586ae84189e12674d95d2b7472","slot":null},{"block":null,"method":"eth_call","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","symbol()"],"raw_result":"Some(\"NET\")","result_hash":"6672f983671f26b2c204771c443b8f3c7993f53b14a392801c38d9587cdbbda2","slot":null},{"block":null,"method":"eth_call","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","name()"],"raw_result":"Some(\"Cloudflare, Inc. Class A common stock • Robinhood Token\")","result_hash":"dd9062eabc4f3644217e6fdf3549a6d50a4c037ce03f776bf738d7516fe3c3d4","slot":null},{"block":null,"method":"eth_call","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","totalSupply()"],"raw_result":"Some(\"634856290000000000000\")","result_hash":"60bd33cf78522706411c948498830661874e9523a4b733a758bd46a92e2a25ee","slot":null},{"block":null,"method":"eth_call","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x116F00968269B7bfbaD4109cE591d6E74c0601d4","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"robinhood","contract":"0x116F00968269B7bfbaD4109cE591d6E74c0601d4","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-19T08:40:19Z","name":"Cloudflare, Inc. Class A common stock","official_deployments":[{"address":"0x116F00968269B7bfbaD4109cE591d6E74c0601d4","network":"Robinhood Chain"}],"source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"NET"},"registry_hash":"cae30e4647e421306c11bce2b38fdd359eeecbb2567d393bf8b2a8e3d38c56d5","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xE4242B3350B1A8B74e864ec38ec6Cd0EA13d7dDE","ticker":"NET","verdict":{"Verified":{"issuer":"Robinhood","ticker":"NET"}},"version":1}

Signature

kqOy4fAt+5lheA04FeLcLOAh5VTg4kul9YKj8fYAP8RVn93riyffwqDs2yxRWF+NFIG3YtoGr7m6sMLMxgOSDg==

API call

GET /api/attest/e19d5516fa9710edf3df9b01e2ade45dc027efffaae6ba8d1e2c6717864314c0

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.