QED
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QED certificate

QED record 630da422c416 from . View the live pool page.

Verified · Ondo MRVL

Does MRVLon / USDT match its issuer's published contract?

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

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
MRVLon / USDT · Ethereum
Pool address
0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB
Issuer match
Ondo · MRVL · View MRVL contracts
Checked
Valid until
Serial
630da422c416
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":26243934,"chain":"ethereum","checked_at":"2026-10-21T22:21:38Z","dev":false,"expires_at":"2026-10-22T22:21:38Z","issuer":"Ondo","pool":{"base":{"address":"0xdAC17F958D2ee523a2206206994597C13D831ec7","balance":"4812132112","decimals":6,"symbol":"USDT"},"chain":"ethereum","dex":"uniswap-v3","pool":"0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB","quote":{"address":"0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","balance":"1459114673794412884","decimals":18,"symbol":"MRVLon"}},"quote_share_of_supply":0.00006397611924352392,"reads":[{"block":26243934,"method":"eth_blockNumber","params":[],"result_hash":"15facabbc0639bdd5d854c6fa99f3468141c61186d58e2fe8043868af5ac7435","slot":null},{"block":null,"method":"eth_call","params":["0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB","token0()"],"raw_result":"0xdac17f958d2ee523a2206206994597c13d831ec7","result_hash":"4deb67031fd9d1a1f47c98d5bd6a714bdab41f25c93d4ed6ca6e8767a5ec93e8","slot":null},{"block":null,"method":"eth_call","params":["0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB","token1()"],"raw_result":"0xf404e5f887dbd5508e16a1198fcdd5de1a4296b8","result_hash":"21757c10560191f4048561a5276728db03c4df5fb90d3590ecde25ca9bb56d04","slot":null},{"block":null,"method":"eth_call","params":["0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB","factory()"],"raw_result":"0x1f98431c8ad98523631ae4a59f267346ea31f984","result_hash":"24b698329e82b3994906dfbd01281d9a6f12f65aa59de65831657e6e928d4c80","slot":null},{"block":null,"method":"eth_call","params":["0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB","fee()"],"raw_result":"3000","result_hash":"53232d7da9fd2a1931dcd44af08ec415dd52ab8ecc4037ef5e68eb3753978a2e","slot":null},{"block":null,"method":"eth_call","params":["0x1F98431c8aD98523631AE4a59f267346ea31F984","getPool","0xdAC17F958D2ee523a2206206994597C13D831ec7","0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","0xbb8"],"raw_result":"0xb8f5bc3a4ab43f9e55ebdc6686b9dda2cb1d45cb","result_hash":"77f342a11dc48402a57c7f2f7bfb6025b85dd6efc0b6eb534cef7397a9f643ab","slot":null},{"block":null,"method":"eth_call","params":["0xdAC17F958D2ee523a2206206994597C13D831ec7","symbol()"],"raw_result":"Some(\"USDT\")","result_hash":"a851493323e1198c0940c2b2ca5c59e97da9c6f50f63f0c09779709ef2572f84","slot":null},{"block":null,"method":"eth_call","params":["0xdAC17F958D2ee523a2206206994597C13D831ec7","decimals()"],"raw_result":"Some(6)","result_hash":"c68fe6989b1835302197d0af5be845dfab10ed9f9632205eb4ab5b949b9e1a6a","slot":null},{"block":null,"method":"eth_call","params":["0xdAC17F958D2ee523a2206206994597C13D831ec7","balanceOf","0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB"],"raw_result":"Some(\"4812132112\")","result_hash":"c16363731af4d1d51c34432972a2fdc2910ef72865bef2a9421057a93d91c625","slot":null},{"block":null,"method":"eth_call","params":["0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","symbol()"],"raw_result":"Some(\"MRVLon\")","result_hash":"0e59d148448b91bc352b8702c6b81013821134c765216e5e2651d57fac2fc8bf","slot":null},{"block":null,"method":"eth_call","params":["0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","balanceOf","0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB"],"raw_result":"Some(\"1459114673794412884\")","result_hash":"873428dcb8c791a8aa1e58e37539686619592f2acf23d78b7fe9e7811aa62f6c","slot":null},{"block":null,"method":"eth_call","params":["0xdAC17F958D2ee523a2206206994597C13D831ec7","symbol()"],"raw_result":"Some(\"USDT\")","result_hash":"a851493323e1198c0940c2b2ca5c59e97da9c6f50f63f0c09779709ef2572f84","slot":null},{"block":null,"method":"eth_call","params":["0xdAC17F958D2ee523a2206206994597C13D831ec7","name()"],"raw_result":"Some(\"Tether USD\")","result_hash":"8f7cfea6e15ea5712d4bf603e3223e8de9dfdee3c5fe9a25ec1181218bd425ad","slot":null},{"block":null,"method":"eth_call","params":["0xdAC17F958D2ee523a2206206994597C13D831ec7","decimals()"],"raw_result":"Some(6)","result_hash":"c68fe6989b1835302197d0af5be845dfab10ed9f9632205eb4ab5b949b9e1a6a","slot":null},{"block":null,"method":"eth_call","params":["0xdAC17F958D2ee523a2206206994597C13D831ec7","totalSupply()"],"raw_result":"Some(\"88301265725970534\")","result_hash":"cdb7b59e0256611e501368eda0d2f8526960ad7fadad2f1ac3a57fe75eb4002a","slot":null},{"block":null,"method":"eth_call","params":["0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","symbol()"],"raw_result":"Some(\"MRVLon\")","result_hash":"0e59d148448b91bc352b8702c6b81013821134c765216e5e2651d57fac2fc8bf","slot":null},{"block":null,"method":"eth_call","params":["0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","name()"],"raw_result":"Some(\"Marvell Technology (Ondo Tokenized)\")","result_hash":"ca0113662b9401bddf723b15389a541e91ef7345891879bc2ca7957340f3afeb","slot":null},{"block":null,"method":"eth_call","params":["0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","totalSupply()"],"raw_result":"Some(\"22807176975526126928759\")","result_hash":"6fded48b5a30e9f5ccb20f906db8302dcd3b9ad8e5deb3f72b83b7a8f7a790f2","slot":null},{"block":null,"method":"eth_getCode","params":["0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null},{"block":null,"method":"eth_getCode","params":["0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null}],"registry_entry":{"chain":"ethereum","contract":"0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","decimals":null,"issuer":"Ondo","last_checked":"2026-10-21T20:04:12Z","name":"Marvell Technology (Ondo Tokenized)","official_deployments":[{"address":"0xF404E5f887dBd5508e16a1198fCDD5DE1A4296B8","network":"Ethereum"},{"address":"0x1501EC83FFEf405B4331CC4f73277a40fb0C627d","network":"BNB Chain"},{"address":"FovBwhoV5KQjZCdhoM6jgXYwXLX3F8vgAfvmLH7ondo","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":"MRVL"},"registry_hash":"954e88539980e42fe0ced002042f5b5e168121b2ed2b50d759221b71f6a1e4c7","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xb8F5Bc3a4ab43F9E55EBDC6686B9DdA2cb1d45cB","ticker":"MRVL","verdict":{"Verified":{"issuer":"Ondo","ticker":"MRVL"}},"version":1}
Signature
w01vHlx5u5Rcf7pO5nEV86q9vnD+ETakq5LasCidPZxDI6d43/gzYAYWOdXhQb9NKNd1csk5xG2xKMVuGO81CQ==
API call
GET /api/attest/630da422c4160e84367072b9dfddca827e0797dc8447e4145bee0e07cb99b6b6
  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.