QED
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QED certificate

QED record 892359223328 from . View the live pool page.

Verified · Ondo MARA

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

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

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
MARAon / USDT · Ethereum
Pool address
0x3ed54f2a849f40535b780c92ae9eac3ef90188687a4309ebf48587b947f49fa0
Issuer match
Ondo · MARA · View MARA contracts
Checked
Valid until
Serial
892359223328
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.

0.05% 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":26274292,"chain":"ethereum","checked_at":"2026-10-26T03:52:32Z","dev":false,"expires_at":"2026-10-27T03:52:32Z","issuer":"Ondo","pool":{"base":{"address":"0x4604b0b581269843ac7a6b70A5FC019E7762e511","balance":"10096011263163371455","decimals":18,"symbol":"MARAon"},"chain":"ethereum","dex":"uniswap-v4","pool":"0x3ed54f2a849f40535b780c92ae9eac3ef90188687a4309ebf48587b947f49fa0","quote":{"address":"0xdAC17F958D2ee523a2206206994597C13D831ec7","balance":"137044967","decimals":6,"symbol":"USDT"}},"quote_share_of_supply":0.0004963346402598977,"reads":[{"block":null,"method":"eth_call","params":["0xbd216513d74c8cf14cf4747e6aaa6420ff64ee9e","poolKeys","0x3ed54f2a849f40535b780c92ae9eac3ef90188687a4309ebf4"],"raw_result":"Object {\"currency0\": String(\"0x4604b0b581269843ac7a6b70a5fc019e7762e511\"), \"currency1\": String(\"0xdac17f958d2ee523a2206206994597c13d831ec7\"), \"fee\": String(\"500000\"), \"hooks\": String(\"0x0000000000000000000000000000000000000000\"), \"tickSpacing\": String(\"10000\")}","result_hash":"0eb5abc9473b8c8d84ac1e39285720bed1c32d305e8675951facf7364c2f7f5b","slot":null},{"block":null,"method":"eth_call","params":["0x7ffe42c4a5deea5b0fec41c94c136cf115597227","getSlot0","0x3ed54f2a849f40535b780c92ae9eac3ef90188687a4309ebf48587b947f49fa0"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x7ffe42c4a5deea5b0fec41c94c136cf115597227","getLiquidity","0x3ed54f2a849f40535b780c92ae9eac3ef90188687a4309ebf48587b947f49fa0"],"raw_result":"37196875289861","result_hash":"5987f4b0b352ef920c5bd191dd6f6f9bd957663d66cc81d9a906f6bdf00874fa","slot":null},{"block":null,"method":"eth_call","params":["0x4604b0b581269843ac7a6b70A5FC019E7762e511","symbol()"],"raw_result":"Some(\"MARAon\")","result_hash":"b93044ea00e57a1c7677e20dbb43b99903479283d36033fe55e51ecf4ffc2fed","slot":null},{"block":null,"method":"eth_call","params":["0x4604b0b581269843ac7a6b70A5FC019E7762e511","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","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":26274292,"method":"eth_blockNumber","params":[],"result_hash":"bf5043f1bba0f6bd5b8f4bec7bb08e7739fdfeda861724cdebdcdb17fa9f1847","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":["0x4604b0b581269843ac7a6b70A5FC019E7762e511","symbol()"],"raw_result":"Some(\"MARAon\")","result_hash":"b93044ea00e57a1c7677e20dbb43b99903479283d36033fe55e51ecf4ffc2fed","slot":null},{"block":null,"method":"eth_call","params":["0x4604b0b581269843ac7a6b70A5FC019E7762e511","name()"],"raw_result":"Some(\"MARA Holdings (Ondo Tokenized)\")","result_hash":"5dda0e28cc5980189800cf85520206a203f77b27b46eb4af087976e1a41d3963","slot":null},{"block":null,"method":"eth_call","params":["0x4604b0b581269843ac7a6b70A5FC019E7762e511","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x4604b0b581269843ac7a6b70A5FC019E7762e511","totalSupply()"],"raw_result":"Some(\"20341137700718926517229\")","result_hash":"4e3f4596505637c195e5f260c96b725141294b205b3ff43539d44dc7ded91636","slot":null},{"block":null,"method":"eth_getCode","params":["0x4604b0b581269843ac7a6b70A5FC019E7762e511","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null},{"block":null,"method":"eth_getCode","params":["0x4604b0b581269843ac7a6b70A5FC019E7762e511","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null}],"registry_entry":{"chain":"ethereum","contract":"0x4604b0b581269843ac7a6b70A5FC019E7762e511","decimals":null,"issuer":"Ondo","last_checked":"2026-10-25T23:07:33Z","name":"MARA Holdings (Ondo Tokenized)","official_deployments":[{"address":"0x4604b0b581269843ac7a6b70A5FC019E7762e511","network":"Ethereum"},{"address":"0xd226d8170EE38793430C7Dec6903df4B818BB74C","network":"BNB Chain"},{"address":"ETCJUmuhs5aY62xgEVWCZ5JR8KPdeXUaJz3LuC5ondo","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":"MARA"},"registry_hash":"7ad75971e53a9b74cd62e5856fbcf7d2132f32d176f68774d445939c2b9af77e","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x3ed54f2a849f40535b780c92ae9eac3ef90188687a4309ebf48587b947f49fa0","ticker":"MARA","verdict":{"Verified":{"issuer":"Ondo","ticker":"MARA"}},"version":1}
Signature
18L8P4TJYnCojdYShj2egmBfnfl8jDtZ//P0NqvM/rqhXsB1TCwUMmaTRC4N9RtX4x0oR+i4j3pJK3c/e7F8DA==
API call
GET /api/attest/892359223328f513e556359be565ecebbf12c0ab9699a69a0f50a40c868939db
  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.