QED
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QED certificate

QED record 31e645f97778 from . View the live pool page.

Verified · Ondo EWJ

Does EWJon / MJDQ match its issuer's published contract?

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

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
EWJon / MJDQ · Ethereum
Pool address
0xfca131c5f05809f0d56f7dd487b696be790438ccd16453defcdbc280e179fba0
Issuer match
Ondo · EWJ · View EWJ contracts
Checked
Valid until
Serial
31e645f97778
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":26220563,"chain":"ethereum","checked_at":"2026-10-18T16:12:15Z","dev":false,"expires_at":"2026-10-19T16:12:15Z","issuer":"Ondo","pool":{"base":{"address":"0x4cbf7a20ff9913892FF3cD6219f7e8810E4DC516","balance":"9999190951410627455295","decimals":18,"symbol":"MJDQ"},"chain":"ethereum","dex":"uniswap-v4","pool":"0xfca131c5f05809f0d56f7dd487b696be790438ccd16453defcdbc280e179fba0","quote":{"address":"0x625Fb557cAD6D4638dae420626F3F08A485b43a8","balance":"101560102369765540024","decimals":18,"symbol":"EWJon"}},"quote_share_of_supply":null,"reads":[{"block":null,"method":"eth_call","params":["0xbd216513d74c8cf14cf4747e6aaa6420ff64ee9e","poolKeys","0xfca131c5f05809f0d56f7dd487b696be790438ccd16453defc"],"raw_result":"Object {\"currency0\": String(\"0x4cbf7a20ff9913892ff3cd6219f7e8810e4dc516\"), \"currency1\": String(\"0x625fb557cad6d4638dae420626f3f08a485b43a8\"), \"fee\": String(\"498806\"), \"hooks\": String(\"0x0000000000000000000000000000000000000000\"), \"tickSpacing\": String(\"60\")}","result_hash":"434c606bc72a36ad6907bc8c7af56329b55dcb72376a2abf0fe8bdeb119ae573","slot":null},{"block":null,"method":"eth_call","params":["0x7ffe42c4a5deea5b0fec41c94c136cf115597227","getSlot0","0xfca131c5f05809f0d56f7dd487b696be790438ccd16453defcdbc280e179fba0"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x7ffe42c4a5deea5b0fec41c94c136cf115597227","getLiquidity","0xfca131c5f05809f0d56f7dd487b696be790438ccd16453defcdbc280e179fba0"],"raw_result":"1007729555307423049186","result_hash":"ef7e5edc1cf58841331eccaf8da78526c4507a98951dfcf1e9298e31306084bb","slot":null},{"block":null,"method":"eth_call","params":["0x4cbf7a20ff9913892FF3cD6219f7e8810E4DC516","symbol()"],"raw_result":"Some(\"MJDQ\")","result_hash":"77622286ccd6eab4d47c7ec38a3194e6108ad670192bc87d5dd440c9a37b7ef0","slot":null},{"block":null,"method":"eth_call","params":["0x4cbf7a20ff9913892FF3cD6219f7e8810E4DC516","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x625Fb557cAD6D4638dae420626F3F08A485b43a8","symbol()"],"raw_result":"Some(\"EWJon\")","result_hash":"5da4bceb2d47d81cc378fecfe2918895f26b0a7f77c33b5fb4511a0309c74b0a","slot":null},{"block":null,"method":"eth_call","params":["0x625Fb557cAD6D4638dae420626F3F08A485b43a8","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":26220563,"method":"eth_blockNumber","params":[],"result_hash":"258e797f6d72871289cd6e5e0b0bf3a31370c3b3525d03535a52176dcf09d135","slot":null},{"block":null,"method":"eth_call","params":["0x4cbf7a20ff9913892FF3cD6219f7e8810E4DC516","symbol()"],"raw_result":"Some(\"MJDQ\")","result_hash":"77622286ccd6eab4d47c7ec38a3194e6108ad670192bc87d5dd440c9a37b7ef0","slot":null},{"block":null,"method":"eth_call","params":["0x4cbf7a20ff9913892FF3cD6219f7e8810E4DC516","name()"],"raw_result":"Some(\"MJDQ\")","result_hash":"77622286ccd6eab4d47c7ec38a3194e6108ad670192bc87d5dd440c9a37b7ef0","slot":null},{"block":null,"method":"eth_call","params":["0x4cbf7a20ff9913892FF3cD6219f7e8810E4DC516","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x4cbf7a20ff9913892FF3cD6219f7e8810E4DC516","totalSupply()"],"raw_result":"Some(\"1000000000000000000000000000\")","result_hash":"9a5063c327faec672db6b50450571675cbfbcc3766ebaf6832c3a9f6636ff4d0","slot":null},{"block":null,"method":"eth_call","params":["0x625Fb557cAD6D4638dae420626F3F08A485b43a8","symbol()"],"raw_result":"Some(\"EWJon\")","result_hash":"5da4bceb2d47d81cc378fecfe2918895f26b0a7f77c33b5fb4511a0309c74b0a","slot":null},{"block":null,"method":"eth_call","params":["0x625Fb557cAD6D4638dae420626F3F08A485b43a8","name()"],"raw_result":"Some(\"iShares MSCI Japan ETF (Ondo Tokenized)\")","result_hash":"77d9e99bd6bce1bbfd686440a2275b81be04aa44caebecaf361b35799d82bef6","slot":null},{"block":null,"method":"eth_call","params":["0x625Fb557cAD6D4638dae420626F3F08A485b43a8","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x625Fb557cAD6D4638dae420626F3F08A485b43a8","totalSupply()"],"raw_result":"Some(\"76836793421121559427\")","result_hash":"95c5aef0f0c1402120b57401fb401463ca4f4a133d4a09e9770f1135be10bca9","slot":null},{"block":null,"method":"eth_getCode","params":["0x625Fb557cAD6D4638dae420626F3F08A485b43a8","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null},{"block":null,"method":"eth_getCode","params":["0x625Fb557cAD6D4638dae420626F3F08A485b43a8","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null}],"registry_entry":{"chain":"ethereum","contract":"0x625Fb557cAD6D4638dae420626F3F08A485b43a8","decimals":null,"issuer":"Ondo","last_checked":"2026-10-18T09:47:35Z","name":"iShares MSCI Japan ETF (Ondo Tokenized)","official_deployments":[{"address":"0x625Fb557cAD6D4638dae420626F3F08A485b43a8","network":"Ethereum"},{"address":"0x82715299f3f132FB85f3De1F7e8fAfd3d79f3eB5","network":"BNB Chain"},{"address":"C6c7VcxuUYcV5YTsky5HM4PUmfwHTwsDD5DNwwPondo","network":"Solana"}],"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":"EWJ"},"registry_hash":"2bf13ff4020924ba1c74d8e732c3dd1609679a3b9a6dc8a796250beb0ae1b589","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xfca131c5f05809f0d56f7dd487b696be790438ccd16453defcdbc280e179fba0","ticker":"EWJ","verdict":{"Verified":{"issuer":"Ondo","ticker":"EWJ"}},"version":1}
Signature
MosMY7Ccy4TKDppkOSUMN+v1PJqXt43W+tbgVeHFw2z4o9wSexjUC4spJTvbWJtfpsh4o9FO3dErZavbu/R7DA==
API call
GET /api/attest/31e645f97778bd58f46cc88164cf9a03b3e946a0ac5f9d63bbfd174d0b6fef2f
  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.