Does NKEon / JPF match its issuer's published contract?

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":129552222,"chain":"bnb","checked_at":"2026-10-24T17:16:14Z","dev":false,"expires_at":"2026-10-25T17:16:14Z","issuer":"Ondo","pool":{"base":{"address":"0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","balance":"4990100638351205631","decimals":18,"symbol":"NKEon"},"chain":"bnb","dex":"pancake-v3","pool":"0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60","quote":{"address":"0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","balance":"1002156887484245061455","decimals":18,"symbol":"JPF"}},"quote_share_of_supply":0.0006718465264212157,"reads":[{"block":129552222,"method":"eth_blockNumber","params":[],"result_hash":"5a50a1e27df52702b24740b338be0b1431bc7d3f623d187af5e47da73c1d6b54","slot":null},{"block":null,"method":"eth_call","params":["0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60","token0()"],"raw_result":"0x04b5e199f2ec84f78b111035f57b16bee448db6f","result_hash":"394b0e6e4a7c77e03724df6b798234e26759e078cfc7e490b68bc21c6bfa97b8","slot":null},{"block":null,"method":"eth_call","params":["0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60","token1()"],"raw_result":"0x70c629478707c8a4eae7fdc0ee54a9f61bee4901","result_hash":"3b2c8aa6ac7f4aeb3f10f406093b5b9378cfd8c6a5b3f996e1cdd7394e2f6a85","slot":null},{"block":null,"method":"eth_call","params":["0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60","factory()"],"raw_result":"0x0bfbcf9fa4f9c56b0f40a671ad40e0805a091865","result_hash":"2e3d0bedb6ff98db8ecf6c7b57f2028219517abe46f0f5212ff489a2c45cafbd","slot":null},{"block":null,"method":"eth_call","params":["0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60","fee()"],"raw_result":"10000","result_hash":"328d48ab2376d2f42d3af5ba69086143c8f5fe883ed195a8280b2154a5711a33","slot":null},{"block":null,"method":"eth_call","params":["0x0BFbCF9fa4f9C56B0F40a671Ad40E0805A091865","getPool","0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","0x2710"],"raw_result":"0x340efda65c12acde2d063772cb63e78a1d73ac60","result_hash":"4e09bbbb3f7c1ccd07f0d090794807c94164cb43000e432a841c4db7fddf8150","slot":null},{"block":null,"method":"eth_call","params":["0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","symbol()"],"raw_result":"Some(\"NKEon\")","result_hash":"07c9d7cf65ea89b48acde83ccbd7c078d8da0c36b1a456309dd06749e0b934e0","slot":null},{"block":null,"method":"eth_call","params":["0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","balanceOf","0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60"],"raw_result":"Some(\"4990100638351205631\")","result_hash":"03fd6a6ad801601d63126ae0083cfa9956fd4e627f5c042c63adeb0fa36a2e32","slot":null},{"block":null,"method":"eth_call","params":["0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","symbol()"],"raw_result":"Some(\"JPF\")","result_hash":"8d248370e596f231428822df40bc446c95db691f13ab32d43949b87c5e60288a","slot":null},{"block":null,"method":"eth_call","params":["0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","balanceOf","0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60"],"raw_result":"Some(\"1002156887484245061455\")","result_hash":"7dd8c90cabe3ef36c2ac59eb9eced3617910560db1b0d3c616c61a0210fb01f1","slot":null},{"block":null,"method":"eth_call","params":["0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","symbol()"],"raw_result":"Some(\"JPF\")","result_hash":"8d248370e596f231428822df40bc446c95db691f13ab32d43949b87c5e60288a","slot":null},{"block":null,"method":"eth_call","params":["0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","name()"],"raw_result":"Some(\"Julius personal farm\")","result_hash":"08820e6e2c3ef656296efff8784b08c17ac97ed4636beb4b65a6f88a7ea27eb0","slot":null},{"block":null,"method":"eth_call","params":["0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","totalSupply()"],"raw_result":"Some(\"1000000000000000000000000\")","result_hash":"29e309e3b943b514eee171b0c8f1348f1e8e33614ee2211fddb192da1a765d10","slot":null},{"block":null,"method":"eth_call","params":["0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","symbol()"],"raw_result":"Some(\"NKEon\")","result_hash":"07c9d7cf65ea89b48acde83ccbd7c078d8da0c36b1a456309dd06749e0b934e0","slot":null},{"block":null,"method":"eth_call","params":["0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","name()"],"raw_result":"Some(\"Nike (Ondo Tokenized)\")","result_hash":"0346952bd69b596c917c0a9e6c6501b55d6f09f84e71c8beb9ab90efab715fe1","slot":null},{"block":null,"method":"eth_call","params":["0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","totalSupply()"],"raw_result":"Some(\"7427441301114430984555\")","result_hash":"eb3aa0da15fe4cf7284d6bdcb5825dc71e1a3bae6cdeb594ccca0c6f29993ce6","slot":null},{"block":null,"method":"eth_getCode","params":["0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null},{"block":null,"method":"eth_getCode","params":["0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null}],"registry_entry":{"chain":"bnb","contract":"0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","decimals":null,"issuer":"Ondo","last_checked":"2026-10-24T10:48:50Z","name":"Nike (Ondo Tokenized)","official_deployments":[{"address":"0xD8e26FcC879b30cB0a0B543925a2B3500f074D81","network":"Ethereum"},{"address":"0x04b5E199F2eC84f78B111035F57b16BeE448dB6F","network":"BNB Chain"},{"address":"g646pcdG2Rt5DH9WZzL7VVnVDWCCMTTrnktwE74ondo","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":"NKE"},"registry_hash":"875caaae33462352de557e32fb0c2eaad153831bdcad79185f569e93183515eb","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x340eFDA65C12AcdE2d063772CB63e78a1D73ac60","ticker":"NKE","verdict":{"Verified":{"issuer":"Ondo","ticker":"NKE"}},"version":1}

Signature

l7eO4xKGgLY8iMOqUDFrP3Zrjn7E9oT4LMG/8ObZvEF3w7S0SGIEClzlVBI3cI3R3rK0KFP+ad3L4AliOEqODA==

API call

GET /api/attest/ce2b246a42a7018a7002d3e96bd950bcbfa9eba1ea27bf516c559ac763080f2d

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.