Does VSTon / 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":128839890,"chain":"bnb","checked_at":"2026-10-21T00:11:57Z","dev":false,"expires_at":"2026-10-22T00:11:57Z","issuer":"Ondo","pool":{"base":{"address":"0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","balance":"134867199976966174950","decimals":18,"symbol":"JPF"},"chain":"bnb","dex":"pancake-v3","pool":"0xB2BD607De59c1935595fd06506089018f0Da584e","quote":{"address":"0xf2C24c47805f4f72d3919C8674bFDd401505794B","balance":"604678244731205562","decimals":18,"symbol":"VSTon"}},"quote_share_of_supply":0.00032037160869931097,"reads":[{"block":128839890,"method":"eth_blockNumber","params":[],"result_hash":"6818bf9b75bd7f56344f137a7fe3d488c4469151f9071fc5626b3de34a05b232","slot":null},{"block":null,"method":"eth_call","params":["0xB2BD607De59c1935595fd06506089018f0Da584e","token0()"],"raw_result":"0x70c629478707c8a4eae7fdc0ee54a9f61bee4901","result_hash":"3b2c8aa6ac7f4aeb3f10f406093b5b9378cfd8c6a5b3f996e1cdd7394e2f6a85","slot":null},{"block":null,"method":"eth_call","params":["0xB2BD607De59c1935595fd06506089018f0Da584e","token1()"],"raw_result":"0xf2c24c47805f4f72d3919c8674bfdd401505794b","result_hash":"76d7112a38bdc9e2fd91fba20f4c4aa0b5da3cf7398fc269cd1783b7b9f2894e","slot":null},{"block":null,"method":"eth_call","params":["0xB2BD607De59c1935595fd06506089018f0Da584e","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0xB2BD607De59c1935595fd06506089018f0Da584e","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xB2BD607De59c1935595fd06506089018f0Da584e","factory()"],"raw_result":"0x0bfbcf9fa4f9c56b0f40a671ad40e0805a091865","result_hash":"2e3d0bedb6ff98db8ecf6c7b57f2028219517abe46f0f5212ff489a2c45cafbd","slot":null},{"block":null,"method":"eth_call","params":["0xB2BD607De59c1935595fd06506089018f0Da584e","fee()"],"raw_result":"10000","result_hash":"328d48ab2376d2f42d3af5ba69086143c8f5fe883ed195a8280b2154a5711a33","slot":null},{"block":null,"method":"eth_call","params":["0x0BFbCF9fa4f9C56B0F40a671Ad40E0805A091865","getPool","0x70c629478707c8A4eAe7FDc0EE54A9F61bEE4901","0xf2C24c47805f4f72d3919C8674bFDd401505794B","0x2710"],"raw_result":"0xb2bd607de59c1935595fd06506089018f0da584e","result_hash":"c84fd424d6c931d6c08e97359783a4db4fcbd373a40575d4b9ecc2e2d47439da","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","0xB2BD607De59c1935595fd06506089018f0Da584e"],"raw_result":"Some(\"134867199976966174950\")","result_hash":"9a0a3bba50ffaf81589b1bc55195a2d2ce87d4125cb4181207f0a450deaaea9b","slot":null},{"block":null,"method":"eth_call","params":["0xf2C24c47805f4f72d3919C8674bFDd401505794B","symbol()"],"raw_result":"Some(\"VSTon\")","result_hash":"42ddb7ca9e6694955fb48ab54cc7c12a25646cea2a581da08580104d8eb616bf","slot":null},{"block":null,"method":"eth_call","params":["0xf2C24c47805f4f72d3919C8674bFDd401505794B","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xf2C24c47805f4f72d3919C8674bFDd401505794B","balanceOf","0xB2BD607De59c1935595fd06506089018f0Da584e"],"raw_result":"Some(\"604678244731205562\")","result_hash":"00e0a62226ca293e0a55fbc4e4568fa5098e3d0c967145a2c8168efa47e4271a","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":["0xf2C24c47805f4f72d3919C8674bFDd401505794B","symbol()"],"raw_result":"Some(\"VSTon\")","result_hash":"42ddb7ca9e6694955fb48ab54cc7c12a25646cea2a581da08580104d8eb616bf","slot":null},{"block":null,"method":"eth_call","params":["0xf2C24c47805f4f72d3919C8674bFDd401505794B","name()"],"raw_result":"Some(\"Vistra (Ondo Tokenized)\")","result_hash":"384dcb8f9616f60d228268539704c9f03f191cfc744c40a97a3590d76ffc0d33","slot":null},{"block":null,"method":"eth_call","params":["0xf2C24c47805f4f72d3919C8674bFDd401505794B","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xf2C24c47805f4f72d3919C8674bFDd401505794B","totalSupply()"],"raw_result":"Some(\"1887427688071867755864\")","result_hash":"a47346400e998f53ea4246a9e2af8e4fef9feced0bb771e5939aeec818c38f87","slot":null},{"block":null,"method":"eth_getCode","params":["0xf2C24c47805f4f72d3919C8674bFDd401505794B","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null},{"block":null,"method":"eth_getCode","params":["0xf2C24c47805f4f72d3919C8674bFDd401505794B","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null}],"registry_entry":{"chain":"bnb","contract":"0xf2C24c47805f4f72d3919C8674bFDd401505794B","decimals":null,"issuer":"Ondo","last_checked":"2026-10-20T22:40:22Z","name":"Vistra (Ondo Tokenized)","official_deployments":[{"address":"0xf1573EdDDB75BF7Ce165f142A17Ed6b5E7f5aA13","network":"Ethereum"},{"address":"0xf2C24c47805f4f72d3919C8674bFDd401505794B","network":"BNB Chain"},{"address":"h6MW8GFpfzxFa1JNn6hZNnBF3t4fj9SHAXKy6LXondo","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":"VST"},"registry_hash":"8d2205cbc926ccb1fa014b1299584fa29b2f2d543ccc68a7b8ffa24c57ead077","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xB2BD607De59c1935595fd06506089018f0Da584e","ticker":"VST","verdict":{"Verified":{"issuer":"Ondo","ticker":"VST"}},"version":1}

Signature

isTq2yMn1S9XG0l/CatdMtdVerLGyxRWXwUVmO1HMK5yLK1vxvEn7Kmst/dTRY+Wl8NoxVnTmdgO7XcH7JS9Dg==

API call

GET /api/attest/c8f88bd1b4e9610568c3b7d406b37ccc6d7a1d2dcf15082b8b8e7cb0c8060463

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.