Does NBISon / 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":128728216,"chain":"bnb","checked_at":"2026-10-20T10:13:41Z","dev":false,"expires_at":"2026-10-21T10:13:41Z","issuer":"Ondo","pool":{"base":{"address":"0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","balance":"193535160571541415747","decimals":18,"symbol":"JPF"},"chain":"bnb","dex":"pancake-v3","pool":"0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058","quote":{"address":"0xee268780473E7a0e47baC41547C6E01512555A16","balance":"920849507682797540","decimals":18,"symbol":"NBISon"}},"quote_share_of_supply":0.00011542022219239034,"reads":[{"block":128728216,"method":"eth_blockNumber","params":[],"result_hash":"23819ab480ce04cf539dce76ebbdce37abf47d2bad3c1b53a2ca0d5953b60740","slot":null},{"block":null,"method":"eth_call","params":["0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058","token0()"],"raw_result":"0x70c629478707c8a4eae7fdc0ee54a9f61bee4901","result_hash":"3b2c8aa6ac7f4aeb3f10f406093b5b9378cfd8c6a5b3f996e1cdd7394e2f6a85","slot":null},{"block":null,"method":"eth_call","params":["0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058","token1()"],"raw_result":"0xee268780473e7a0e47bac41547c6e01512555a16","result_hash":"8e6a827608d3c42acd775121dff84c0c611270772b40f725c82dadca75ee5797","slot":null},{"block":null,"method":"eth_call","params":["0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058","factory()"],"raw_result":"0x0bfbcf9fa4f9c56b0f40a671ad40e0805a091865","result_hash":"2e3d0bedb6ff98db8ecf6c7b57f2028219517abe46f0f5212ff489a2c45cafbd","slot":null},{"block":null,"method":"eth_call","params":["0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058","fee()"],"raw_result":"10000","result_hash":"328d48ab2376d2f42d3af5ba69086143c8f5fe883ed195a8280b2154a5711a33","slot":null},{"block":null,"method":"eth_call","params":["0x0BFbCF9fa4f9C56B0F40a671Ad40E0805A091865","getPool","0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","0xee268780473E7a0e47baC41547C6E01512555A16","0x2710"],"raw_result":"0x69a36ab562b2a54b41ead6c2fd77ee2da8b77058","result_hash":"a4742305147e36a876be03f4098bc67ae372ea6428faa9806624b0fabd0857be","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","0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058"],"raw_result":"Some(\"193535160571541415747\")","result_hash":"1c1ef81f56e60f65e0fb6747eb3037d6021d9bf4a64a7d488787491586532186","slot":null},{"block":null,"method":"eth_call","params":["0xee268780473E7a0e47baC41547C6E01512555A16","symbol()"],"raw_result":"Some(\"NBISon\")","result_hash":"adf023c8ab79a92db0017d78018567e8cf0d6fee77d05793c6a2e919b16065d0","slot":null},{"block":null,"method":"eth_call","params":["0xee268780473E7a0e47baC41547C6E01512555A16","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xee268780473E7a0e47baC41547C6E01512555A16","balanceOf","0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058"],"raw_result":"Some(\"920849507682797540\")","result_hash":"a7b4f2378c79a25f29a4c711ad194812c9b3be2d6ab9089485226cf2f4dd3da5","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":["0xee268780473E7a0e47baC41547C6E01512555A16","symbol()"],"raw_result":"Some(\"NBISon\")","result_hash":"adf023c8ab79a92db0017d78018567e8cf0d6fee77d05793c6a2e919b16065d0","slot":null},{"block":null,"method":"eth_call","params":["0xee268780473E7a0e47baC41547C6E01512555A16","name()"],"raw_result":"Some(\"Nebius Group (Ondo Tokenized)\")","result_hash":"7f64171b8942875aad404ffcef910e7c44edfecc9f01e46f44fd6b556e6bf6f7","slot":null},{"block":null,"method":"eth_call","params":["0xee268780473E7a0e47baC41547C6E01512555A16","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xee268780473E7a0e47baC41547C6E01512555A16","totalSupply()"],"raw_result":"Some(\"7978233711488290283016\")","result_hash":"602d5735b0d6887010f2b0adcb3e38ea510f3d790b411913e9540b4add402d02","slot":null},{"block":null,"method":"eth_getCode","params":["0xee268780473E7a0e47baC41547C6E01512555A16","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null},{"block":null,"method":"eth_getCode","params":["0xee268780473E7a0e47baC41547C6E01512555A16","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null}],"registry_entry":{"chain":"bnb","contract":"0xee268780473E7a0e47baC41547C6E01512555A16","decimals":null,"issuer":"Ondo","last_checked":"2026-10-19T21:40:22Z","name":"Nebius Group (Ondo Tokenized)","official_deployments":[{"address":"0xE4babaa960bA7D37860f3fe00D7b95D3868e8EDc","network":"Ethereum"},{"address":"0xee268780473E7a0e47baC41547C6E01512555A16","network":"BNB Chain"},{"address":"DiRshqNDE68bWbGdLHm1GwQ76MvWQG3af6w1NdQondo","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":"NBIS"},"registry_hash":"af3c37a81cb7944cc1629e1bdb3d7e524e4edd4e0a8725e736cdb69f4867e121","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x69A36aB562b2A54b41Ead6c2fd77ee2DA8B77058","ticker":"NBIS","verdict":{"Verified":{"issuer":"Ondo","ticker":"NBIS"}},"version":1}

Signature

puMIrppKIRRyaBSJzNdc9WwuIeo4hExfgBUI45RFbsF6p14HZBwrk1+mYSjcrs1D+rio5Cxuf4BHc9nadCNAAA==

API call

GET /api/attest/a1a512fda8a2f1973f33c249d3bce0095e6c76758915fed5c682ead4053e859f

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.