QED
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QED certificate

QED record 2f90e4da53bd from . View the live pool page.

Verified · Robinhood USO

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

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

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 v4
Subject
USO / USDG · Robinhood Chain
Pool address
0x1f2ad5a274a776d8e1408292bde1d92d8fa7b6444acf14ad60b9c3e4e5b66420
Issuer match
Robinhood · USO · View USO contracts
Checked
Valid until
Serial
2f90e4da53bd
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.

n/a 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":91999275,"chain":"robinhood","checked_at":"2026-10-18T18:57:25Z","dev":false,"expires_at":"2026-10-19T18:57:25Z","issuer":"Robinhood","pool":{"base":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"2967042155858","decimals":6,"symbol":"USDG"},"chain":"robinhood","dex":"uniswap-v4","pool":"0x1f2ad5a274a776d8e1408292bde1d92d8fa7b6444acf14ad60b9c3e4e5b66420","quote":{"address":"0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","balance":"18322621552150256915142","decimals":18,"symbol":"USO"}},"quote_share_of_supply":null,"reads":[{"block":null,"method":"eth_call","params":["0x58daec3116aae6d93017baaea7749052e8a04fa7","poolKeys","0x1f2ad5a274a776d8e1408292bde1d92d8fa7b6444acf14ad60"],"raw_result":"Object {\"currency0\": String(\"0x5fc5360d0400a0fd4f2af552add042d716f1d168\"), \"currency1\": String(\"0xa30fa36db767ad9ed3f7a60fc79526fb4d56d344\"), \"fee\": String(\"1200\"), \"hooks\": String(\"0x0000000000000000000000000000000000000000\"), \"tickSpacing\": String(\"15\")}","result_hash":"0c08432ffa7d8c85dee8a5997074031e4f689e1253574a96509c59bd697f6c57","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getSlot0","0x1f2ad5a274a776d8e1408292bde1d92d8fa7b6444acf14ad60b9c3e4e5b66420"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getLiquidity","0x1f2ad5a274a776d8e1408292bde1d92d8fa7b6444acf14ad60b9c3e4e5b66420"],"raw_result":"233160868395788290","result_hash":"7416a86e43627320c8a946b3b8e1cd2f82235c98edcf88d5c0c21d3007bf22f6","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":["0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","symbol()"],"raw_result":"Some(\"USO\")","result_hash":"04836eebdc7b29e6e8d354377fa7b7fbae57302e0f1086f06bcc9b436e40dc27","slot":null},{"block":null,"method":"eth_call","params":["0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":91999275,"method":"eth_blockNumber","params":[],"result_hash":"8938a1a58cbd878e801cd6b0549e19f802a48c9b9dc236a405978ce74d88d1f0","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(\"696496200347174\")","result_hash":"c89de63b57cbd2df29547c452103566aa72dd3f4abac92a6142add18e0bbbedd","slot":null},{"block":null,"method":"eth_call","params":["0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","symbol()"],"raw_result":"Some(\"USO\")","result_hash":"04836eebdc7b29e6e8d354377fa7b7fbae57302e0f1086f06bcc9b436e40dc27","slot":null},{"block":null,"method":"eth_call","params":["0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","name()"],"raw_result":"Some(\"United States Oil Fund • Robinhood Token\")","result_hash":"d6ef0e5af0d16de7108e9625cb74b8db07987659dd0be98480b914b0eee31080","slot":null},{"block":null,"method":"eth_call","params":["0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","totalSupply()"],"raw_result":"Some(\"11215127400000000000000\")","result_hash":"67b51b8a40d2f31666c88fdc9bf44aa1980bc784c2997575adcc4375ecf75a2d","slot":null},{"block":null,"method":"eth_call","params":["0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"robinhood","contract":"0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-18T18:54:09Z","name":"United States Oil Fund","official_deployments":[{"address":"0xa30FA36Db767ad9eD3f7a60fC79526fB4d56D344","network":"Robinhood Chain"}],"source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"USO"},"registry_hash":"e40a8f7ec2f1a2c1d6467a45e0976602299513549c0406d646df02a3ecb928c8","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x1f2ad5a274a776d8e1408292bde1d92d8fa7b6444acf14ad60b9c3e4e5b66420","ticker":"USO","verdict":{"Verified":{"issuer":"Robinhood","ticker":"USO"}},"version":1}
Signature
bT9Hcb8XCt8Qxeyg8qAI+0r2oW6cHbX7nKybB82HiIy8DqwyJWk7/wEO5TRPp+ZDsNclgSu7vPNXc+tWgOVyDA==
API call
GET /api/attest/2f90e4da53bd0d198151e8baf206af58e3d5a42c8fac52d390ebefac229f32a1
  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.