QED
v1.1.3
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QED certificate

QED record 5d093bd39b5c from . View the live pool page.

Verified · Backed xStocks NVDA

Does NVDAx / UDS match its issuer's published contract?

The pool's quote contract matches Backed xStocks'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 v4
Subject
NVDAx / UDS · Ethereum
Pool address
0x3e5262250d37d4b7a871d40b0067e730f7e03b011c7583cfe156e6e0d4d77b72
Issuer match
Backed xStocks · NVDA · View NVDA contracts
Checked
Valid until
Serial
5d093bd39b5c
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.

under 0.01% 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":26242926,"chain":"ethereum","checked_at":"2026-10-21T18:59:21Z","dev":false,"expires_at":"2026-10-22T18:59:21Z","issuer":"Backed xStocks","pool":{"base":{"address":"0x2162FDb116bc95d85b898BdAE77e053eF0C36eAA","balance":"326137311093541311963","decimals":18,"symbol":"UDS"},"chain":"ethereum","dex":"uniswap-v4","pool":"0x3e5262250d37d4b7a871d40b0067e730f7e03b011c7583cfe156e6e0d4d77b72","quote":{"address":"0xc845b2894dBddd03858fd2D643B4eF725fE0849d","balance":"1484162388354852229","decimals":18,"symbol":"NVDAx"}},"quote_share_of_supply":0.00001347027710928614,"reads":[{"block":null,"method":"eth_call","params":["0xbd216513d74c8cf14cf4747e6aaa6420ff64ee9e","poolKeys","0x3e5262250d37d4b7a871d40b0067e730f7e03b011c7583cfe1"],"raw_result":"Object {\"currency0\": String(\"0x2162fdb116bc95d85b898bdae77e053ef0c36eaa\"), \"currency1\": String(\"0xc845b2894dbddd03858fd2d643b4ef725fe0849d\"), \"fee\": String(\"200000\"), \"hooks\": String(\"0x0000000000000000000000000000000000000000\"), \"tickSpacing\": String(\"2000\")}","result_hash":"5a1c9b89f06bdcd4eed00ee8764ba0da7f03ef88910f94af8bcbf1c6f534981a","slot":null},{"block":null,"method":"eth_call","params":["0x7ffe42c4a5deea5b0fec41c94c136cf115597227","getSlot0","0x3e5262250d37d4b7a871d40b0067e730f7e03b011c7583cfe156e6e0d4d77b72"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x7ffe42c4a5deea5b0fec41c94c136cf115597227","getLiquidity","0x3e5262250d37d4b7a871d40b0067e730f7e03b011c7583cfe156e6e0d4d77b72"],"raw_result":"22000925675166936416","result_hash":"4ccbf16b4fd8219b3a5af326799b9fc97e27b5df0bc02cc8f8de19467bdead32","slot":null},{"block":null,"method":"eth_call","params":["0x2162FDb116bc95d85b898BdAE77e053eF0C36eAA","symbol()"],"raw_result":"Some(\"UDS\")","result_hash":"2c14e7c075eb8a00642631fde3ab87ede055000cee69e89598dccfade4c11e41","slot":null},{"block":null,"method":"eth_call","params":["0x2162FDb116bc95d85b898BdAE77e053eF0C36eAA","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xc845b2894dBddd03858fd2D643B4eF725fE0849d","symbol()"],"raw_result":"Some(\"NVDAx\")","result_hash":"44a9ba3ab933ba0bcca60212d5e935024e6f02408c93dfe1d02d7879e0fbdfb8","slot":null},{"block":null,"method":"eth_call","params":["0xc845b2894dBddd03858fd2D643B4eF725fE0849d","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":26242926,"method":"eth_blockNumber","params":[],"result_hash":"53054d7714a56e84e4ff1119e8225c3576e17b421bf10b20a25c92f784b55494","slot":null},{"block":null,"method":"eth_call","params":["0x2162FDb116bc95d85b898BdAE77e053eF0C36eAA","symbol()"],"raw_result":"Some(\"UDS\")","result_hash":"2c14e7c075eb8a00642631fde3ab87ede055000cee69e89598dccfade4c11e41","slot":null},{"block":null,"method":"eth_call","params":["0x2162FDb116bc95d85b898BdAE77e053eF0C36eAA","name()"],"raw_result":"Some(\"Uds My\")","result_hash":"cba9701721a52d21dfbe2b38e11a9a6c9f6386973dbdf6be136ef8464ff28a48","slot":null},{"block":null,"method":"eth_call","params":["0x2162FDb116bc95d85b898BdAE77e053eF0C36eAA","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x2162FDb116bc95d85b898BdAE77e053eF0C36eAA","totalSupply()"],"raw_result":"Some(\"10000000000000000000000000\")","result_hash":"b1ad9e97341fa8bfcff35922c984d71a77ade48980cbc8ed981d08aa36c9953f","slot":null},{"block":null,"method":"eth_call","params":["0xc845b2894dBddd03858fd2D643B4eF725fE0849d","symbol()"],"raw_result":"Some(\"NVDAx\")","result_hash":"44a9ba3ab933ba0bcca60212d5e935024e6f02408c93dfe1d02d7879e0fbdfb8","slot":null},{"block":null,"method":"eth_call","params":["0xc845b2894dBddd03858fd2D643B4eF725fE0849d","name()"],"raw_result":"Some(\"NVIDIA xStock\")","result_hash":"756b99cba5054e3b45d0fb189091448e7ca402fd361b42f7f9fa604d1aa56c15","slot":null},{"block":null,"method":"eth_call","params":["0xc845b2894dBddd03858fd2D643B4eF725fE0849d","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xc845b2894dBddd03858fd2D643B4eF725fE0849d","totalSupply()"],"raw_result":"Some(\"110180538701145229619549\")","result_hash":"19847979029ee2b3845e120742b08012e5850a4d2b0ebb98b2cc784798034a46","slot":null},{"block":null,"method":"eth_getCode","params":["0xc845b2894dBddd03858fd2D643B4eF725fE0849d","latest"],"result_hash":"71ee049d0c0cab5d785d7aef2e6b591e511475fb8ef465f4d8f5335bfd412bfd","slot":null},{"block":null,"method":"eth_getCode","params":["0xc845b2894dBddd03858fd2D643B4eF725fE0849d","latest"],"result_hash":"71ee049d0c0cab5d785d7aef2e6b591e511475fb8ef465f4d8f5335bfd412bfd","slot":null}],"registry_entry":{"chain":"ethereum","contract":"0xc845b2894dBddd03858fd2D643B4eF725fE0849d","decimals":null,"issuer":"Backed xStocks","last_checked":"2026-10-21T18:40:19Z","name":"NVIDIA","official_deployments":[{"address":"0xc845b2894dbddd03858fd2d643b4ef725fe0849d","network":"Ethereum","wrapper_address":"0x93e62845c1dd5822ebc807ab71a5fb750decd15a","wrapper_address_v2":"0xa8ddb5cd96b5222afe198316e9a57caa642850d5"},{"address":"0xc845b2894dbddd03858fd2d643b4ef725fe0849d","network":"BinanceSmartChain","wrapper_address":"0x93e62845c1dd5822ebc807ab71a5fb750decd15a","wrapper_address_v2":"0xa8ddb5cd96b5222afe198316e9a57caa642850d5"},{"address":"0xc845b2894dbddd03858fd2d643b4ef725fe0849d","network":"Arbitrum","wrapper_address":"0x93e62845c1dd5822ebc807ab71a5fb750decd15a","wrapper_address_v2":"0xa8ddb5cd96b5222afe198316e9a57caa642850d5"},{"address":"Xsc9qvGR1efVDFGLrVsmkzv3qi45LTBjeUKSPmx9qEh","network":"Solana"},{"address":"TNMR6r9Z4cL7eWNrNQ4e4sm2XPhhifexZU","network":"Tron","wrapper_address":"TViJkpcCd1PGMnv2odHPt5aVF15BZ2H7g9"},{"address":"EQCva-Of7acQdU_piADdlcbzsFtA-xJwZoctz8ZOXBdBoaB8","network":"Ton"},{"address":"0xc845b2894dbddd03858fd2d643b4ef725fe0849d","network":"Mantle","wrapper_address":"0x93e62845c1dd5822ebc807ab71a5fb750decd15a","wrapper_address_v2":"0xa8ddb5cd96b5222afe198316e9a57caa642850d5"},{"address":"0xc845b2894dbddd03858fd2d643b4ef725fe0849d","network":"HyperEVM","wrapper_address_v2":"0xa8ddb5cd96b5222afe198316e9a57caa642850d5"},{"address":"0xc845b2894dbddd03858fd2d643b4ef725fe0849d","network":"Ink","wrapper_address_v2":"0xa8ddb5cd96b5222afe198316e9a57caa642850d5"},{"address":"0xc845b2894dbddd03858fd2d643b4ef725fe0849d","network":"XLayer","wrapper_address_v2":"0xa8ddb5cd96b5222afe198316e9a57caa642850d5"},{"address":"0xc845b2894dbddd03858fd2d643b4ef725fe0849d","network":"Optimism","wrapper_address_v2":"0xa8ddb5cd96b5222afe198316e9a57caa642850d5"},{"address":"0xc845b2894dbddd03858fd2d643b4ef725fe0849d","network":"Monad","wrapper_address_v2":"0xa8ddb5cd96b5222afe198316e9a57caa642850d5"}],"source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"NVDA"},"registry_hash":"d2b23738a0957d6535d8cddb63373ceb6c6c963a51ba306222a0752fa56fc433","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x3e5262250d37d4b7a871d40b0067e730f7e03b011c7583cfe156e6e0d4d77b72","ticker":"NVDA","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"NVDA"}},"version":1}
Signature
ZS2dKpTCCGOyIxZcZ+HSxC9TGxp7sMoFBpPX8rb83ma6VoI9aCGWQfI+0sMwB3bliLZLQQSoFUiJ37SHAhZ8Cg==
API call
GET /api/attest/5d093bd39b5c08f930413bc3b38403a25137498a063a60208dca08f4ea375078
  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.