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QED certificate

QED record a627366e5cd3 from . View the live pool page.

Verified · Robinhood QUBT

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

The pool's quote contract matches Robinhood's registry entry for QUBT.

Verified means the observed quote-token contract matches an issuer-published registry entry on Robinhood Chain. Only the quote-side contract is checked.

This does not prove backing, custody, reserves, price, safety, solvency, or endorsement.

Signature valid · contract match

Robinhood Chain Uniswap v3
Subject
QUBT / USDG · Robinhood Chain
Pool address
0x227Bbce9A81B3694b01754298a983Be3F9E44A93
Issuer match
Robinhood · QUBT · View QUBT contracts
Checked
Valid until
Serial
a627366e5cd3
Signed by
QED (key id GJWKkiUd)

After this time the certificate remains a historical record, but it no longer establishes current pool or registry state. Re-check to create a fresh observation before relying on current facts.

Compare this address with the one you were given before you trade.

37.19% Checked

Only trust an address you pasted here or opened from this page.

How to verify this yourself

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":91682343,"chain":"robinhood","checked_at":"2026-10-18T09:59:43Z","dev":false,"expires_at":"2026-10-19T09:59:43Z","issuer":"Robinhood","pool":{"base":{"address":"0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","balance":"10662780277664705957534","decimals":18,"symbol":"QUBT"},"chain":"robinhood","dex":"uniswap-v3","pool":"0x227Bbce9A81B3694b01754298a983Be3F9E44A93","quote":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"4346486304","decimals":6,"symbol":"USDG"}},"quote_share_of_supply":0.3719423150511885,"reads":[{"block":91682343,"method":"eth_blockNumber","params":[],"result_hash":"663da1a5d27e40bc6b9dcb6f67665ca7d7e717c7430d0abf1c25fc366c7d10aa","slot":null},{"block":null,"method":"eth_call","params":["0x227Bbce9A81B3694b01754298a983Be3F9E44A93","token0()"],"raw_result":"0x59818904ab4ce163b3ce4ffb64f2d6ca02c434b4","result_hash":"242bf153652eac58e7985c5d100e262a4a8cb80de3bec67565a0b30ca99652e6","slot":null},{"block":null,"method":"eth_call","params":["0x227Bbce9A81B3694b01754298a983Be3F9E44A93","token1()"],"raw_result":"0x5fc5360d0400a0fd4f2af552add042d716f1d168","result_hash":"742eb919f060d78d6f55d9d90c592b8d91ea7358553fc7e37cb579cf21192137","slot":null},{"block":null,"method":"eth_call","params":["0x227Bbce9A81B3694b01754298a983Be3F9E44A93","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0x227Bbce9A81B3694b01754298a983Be3F9E44A93","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x227Bbce9A81B3694b01754298a983Be3F9E44A93","factory()"],"raw_result":"0x1f7d7550b1b028f7571e69a784071f0205fd2efa","result_hash":"bf7614e6e838b22e4363dfcb3022451641875235ca13e64f8d2d8c3334ff85f3","slot":null},{"block":null,"method":"eth_call","params":["0x227Bbce9A81B3694b01754298a983Be3F9E44A93","fee()"],"raw_result":"3000","result_hash":"53232d7da9fd2a1931dcd44af08ec415dd52ab8ecc4037ef5e68eb3753978a2e","slot":null},{"block":null,"method":"eth_call","params":["0x1f7d7550B1b028f7571E69A784071F0205FD2EfA","getPool","0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","0xbb8"],"raw_result":"0x227bbce9a81b3694b01754298a983be3f9e44a93","result_hash":"d24945e060d83690476ca6e1c2d529d44c52621cb8826f7cee4d589890d20d24","slot":null},{"block":null,"method":"eth_call","params":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","symbol()"],"raw_result":"Some(\"QUBT\")","result_hash":"b7a9d2b897c0ed65e14460f2a0391248c783d6b0ee269665a88bef72ab31d2e3","slot":null},{"block":null,"method":"eth_call","params":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","balanceOf","0x227Bbce9A81B3694b01754298a983Be3F9E44A93"],"raw_result":"Some(\"10662780277664705957534\")","result_hash":"eb73ecedfd881d7ec69e08e78ea111e79f5f210ef40c9bd6cd218657fbd8e2c6","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","0x227Bbce9A81B3694b01754298a983Be3F9E44A93"],"raw_result":"Some(\"4346486304\")","result_hash":"35689148a58c593612f9feff906c87a14a3c0067f7d027016af8a0645863a090","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":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","symbol()"],"raw_result":"Some(\"QUBT\")","result_hash":"b7a9d2b897c0ed65e14460f2a0391248c783d6b0ee269665a88bef72ab31d2e3","slot":null},{"block":null,"method":"eth_call","params":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","name()"],"raw_result":"Some(\"Quantum Computing • Robinhood Token\")","result_hash":"2db94c898446a8900bd0e8dab6bce11e15da73bc3d82b50e9d6788c540302b8a","slot":null},{"block":null,"method":"eth_call","params":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","totalSupply()"],"raw_result":"Some(\"28667833280000000000000\")","result_hash":"8e696a3effd83ab62a1a323ebf02ad8aac4021caa0dbf85db294c99674e745ad","slot":null},{"block":null,"method":"eth_call","params":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"robinhood","contract":"0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-18T09:47:33Z","name":"Quantum Computing","official_deployments":[{"address":"0x59818904ab4cE163b3cE4FfB64f2D6Ca02c434B4","network":"Robinhood Chain"}],"source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"QUBT"},"registry_hash":"3143486c8ed17e52c07540b096bdf4ef50abfca368b23311d9290e9923561570","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x227Bbce9A81B3694b01754298a983Be3F9E44A93","ticker":"QUBT","verdict":{"Verified":{"issuer":"Robinhood","ticker":"QUBT"}},"version":1}
Signature
Gjq58MD0Ce9pIBahg6f1FDfG2fLgohZGeqaXo6HZShz/2iPaIJIvQKNEE8JPCYY4Ptq8Y41WD2v/biZ8RdrwCw==
API call
GET /api/attest/a627366e5cd3030796d1ec6ba00bcee37b1f37d0dbdebef112b7261a99206bd5
  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.