QED
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QED certificate

QED record b47b4e5cf706 from . View the live pool page.

Verified · Ondo NVDA

Does NVDAon / USDC match its issuer's published contract?

The pool's quote contract matches Ondo's registry entry for NVDA.

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

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

Signature valid · contract match

Ethereum Uniswap v3
Subject
NVDAon / USDC · Ethereum
Pool address
0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46
Issuer match
Ondo · NVDA · View NVDA contracts
Checked
Valid until
Serial
b47b4e5cf706
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.

0.70% 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":26220526,"chain":"ethereum","checked_at":"2026-10-18T16:04:53Z","dev":false,"expires_at":"2026-10-19T16:04:53Z","issuer":"Ondo","pool":{"base":{"address":"0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","balance":"581597754827198529726","decimals":18,"symbol":"NVDAon"},"chain":"ethereum","dex":"uniswap-v3","pool":"0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46","quote":{"address":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","balance":"11562218123","decimals":6,"symbol":"USDC"}},"quote_share_of_supply":0.00696538298188274,"reads":[{"block":26220526,"method":"eth_blockNumber","params":[],"result_hash":"03e77900a9e5684a6ba3b29c6df35568a21eaa18d96c9aa6cc3da31f17d4038c","slot":null},{"block":null,"method":"eth_call","params":["0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46","token0()"],"raw_result":"0x2d1f7226bd1f780af6b9a49dcc0ae00e8df4bdee","result_hash":"ee549f15d13a7be7456a014663d1f9ccea242fc3536da66fcb0900903712ebbb","slot":null},{"block":null,"method":"eth_call","params":["0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46","token1()"],"raw_result":"0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48","result_hash":"6239f262cd1d947b947081c9eba6e8771378942478e1d48654f4f132ebb96021","slot":null},{"block":null,"method":"eth_call","params":["0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46","factory()"],"raw_result":"0x1f98431c8ad98523631ae4a59f267346ea31f984","result_hash":"24b698329e82b3994906dfbd01281d9a6f12f65aa59de65831657e6e928d4c80","slot":null},{"block":null,"method":"eth_call","params":["0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46","fee()"],"raw_result":"3000","result_hash":"53232d7da9fd2a1931dcd44af08ec415dd52ab8ecc4037ef5e68eb3753978a2e","slot":null},{"block":null,"method":"eth_call","params":["0x1F98431c8aD98523631AE4a59f267346ea31F984","getPool","0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","0xbb8"],"raw_result":"0xc9b4bc7c15423fcfe6b75ab5118ba773945a3a46","result_hash":"90a5b126eb3db7cb2907f7a1b0235fefd8492f9bfb47c130c94f195beb1be209","slot":null},{"block":null,"method":"eth_call","params":["0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","symbol()"],"raw_result":"Some(\"NVDAon\")","result_hash":"46c43db2f5276b496d913fac27ac99eb51d6b037736cff400a31e742440484fd","slot":null},{"block":null,"method":"eth_call","params":["0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","balanceOf","0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46"],"raw_result":"Some(\"581597754827198529726\")","result_hash":"76bc75f8ca213caa6be1a6bdaa0e649f81c2ac98043aa822110f1d0795530506","slot":null},{"block":null,"method":"eth_call","params":["0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","symbol()"],"raw_result":"Some(\"USDC\")","result_hash":"a3c9e246b0832b52e41efce041d8614251f5e288cdd4b192e85bfd3dfcb748ff","slot":null},{"block":null,"method":"eth_call","params":["0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","decimals()"],"raw_result":"Some(6)","result_hash":"c68fe6989b1835302197d0af5be845dfab10ed9f9632205eb4ab5b949b9e1a6a","slot":null},{"block":null,"method":"eth_call","params":["0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","balanceOf","0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46"],"raw_result":"Some(\"11562218123\")","result_hash":"a9796e9c9c3a7997e272c08950a285f7ea9bec72242eecbd7307e76d6b10f759","slot":null},{"block":null,"method":"eth_call","params":["0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","symbol()"],"raw_result":"Some(\"USDC\")","result_hash":"a3c9e246b0832b52e41efce041d8614251f5e288cdd4b192e85bfd3dfcb748ff","slot":null},{"block":null,"method":"eth_call","params":["0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","name()"],"raw_result":"Some(\"USD Coin\")","result_hash":"fe94af15dc887a2c9df1fb0d6d276e6c586ca9d430ffeac0d05e4baee0637fd1","slot":null},{"block":null,"method":"eth_call","params":["0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","decimals()"],"raw_result":"Some(6)","result_hash":"c68fe6989b1835302197d0af5be845dfab10ed9f9632205eb4ab5b949b9e1a6a","slot":null},{"block":null,"method":"eth_call","params":["0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","totalSupply()"],"raw_result":"Some(\"48236488409764977\")","result_hash":"21f621b4438622857a299027b8988be758a76273c84c0e8322a8a1496b7f7e0c","slot":null},{"block":null,"method":"eth_call","params":["0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","symbol()"],"raw_result":"Some(\"NVDAon\")","result_hash":"46c43db2f5276b496d913fac27ac99eb51d6b037736cff400a31e742440484fd","slot":null},{"block":null,"method":"eth_call","params":["0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","name()"],"raw_result":"Some(\"NVIDIA (Ondo Tokenized)\")","result_hash":"cbfbccf105c436b16e881eff4a8ca524fd0008d69f2f09914242b75219061f2e","slot":null},{"block":null,"method":"eth_call","params":["0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","totalSupply()"],"raw_result":"Some(\"83498316796069825942125\")","result_hash":"eb95323245700d751016123887f11757612085ac30c2050562ea7f02017ea80c","slot":null},{"block":null,"method":"eth_getCode","params":["0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null},{"block":null,"method":"eth_getCode","params":["0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null}],"registry_entry":{"chain":"ethereum","contract":"0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","decimals":null,"issuer":"Ondo","last_checked":"2026-10-18T09:47:35Z","name":"NVIDIA (Ondo Tokenized)","official_deployments":[{"address":"0x2D1F7226Bd1F780AF6B9A49DCC0aE00E8Df4bDEE","network":"Ethereum"},{"address":"0xA9eE28C80f960B889dFbd1902055218cBa016F75","network":"BNB Chain"},{"address":"gEGtLTPNQ7jcg25zTetkbmF7teoDLcrfTnQfmn2ondo","network":"Solana"},{"address":"0xB989ad9b91886b1Aaed8DaADb26F028b29b40945","network":"HyperEVM"}],"source":"https://docs.ondo.finance/addresses.md","source_url":"https://www.dropbox.com/scl/fi/qjfxyg748mx0dwi6up86d/EXTERNAL-Ondo-GM-Tokens-Ondo-GM-Tokens.csv?rlkey=n3no1w78wrah3umsl0nr9s77i&e=2&st=spdit2q1&dl=1","ticker":"NVDA"},"registry_hash":"2bf13ff4020924ba1c74d8e732c3dd1609679a3b9a6dc8a796250beb0ae1b589","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xc9b4bC7C15423FCFe6B75aB5118bA773945A3A46","ticker":"NVDA","verdict":{"Verified":{"issuer":"Ondo","ticker":"NVDA"}},"version":1}
Signature
feznlwijGqLziWZD3Nh0IOaMLG6NH82tR7GWr7tFqw3mIOiOTGog7g8gDCGLalBcyqpIkGErs88/spHmK04UDg==
API call
GET /api/attest/b47b4e5cf70671e6c9408b39d0346aa98f8b990bbefa3b3c1b06d09f2ce390cd
  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.