Does KWEBon / SCI6900 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":129502687,"chain":"bnb","checked_at":"2026-10-24T11:04:35Z","dev":false,"expires_at":"2026-10-25T11:04:35Z","issuer":"Ondo","pool":{"base":{"address":"0x372d9b65624D6E9B7E839D5D8E4561a7Aff57777","balance":"10766977597376743597760789","decimals":18,"symbol":"SCI6900"},"chain":"bnb","dex":"pancake-v2","pool":"0x56E24a3386bAa4F9028ee11660D2E5f9c306D7BB","quote":{"address":"0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","balance":"4283367451144471345","decimals":18,"symbol":"KWEBon"}},"quote_share_of_supply":0.0056611087268163135,"reads":[{"block":129502687,"method":"eth_blockNumber","params":[],"result_hash":"fa66a1f05d425ba20c21c73232c0c887c751caee33492b221c03a12508d2cda2","slot":null},{"block":null,"method":"eth_call","params":["0x56E24a3386bAa4F9028ee11660D2E5f9c306D7BB","token0()"],"raw_result":"0x372d9b65624d6e9b7e839d5d8e4561a7aff57777","result_hash":"d8a68559f6b78d4567e69e40cb6d2eb942aacad133588e36b2454aafc08d52fe","slot":null},{"block":null,"method":"eth_call","params":["0x56E24a3386bAa4F9028ee11660D2E5f9c306D7BB","token1()"],"raw_result":"0x7437203800140ba7d9081dde8cef09ee40e3bf03","result_hash":"a6710d2c465a435ec404a60aa651dbcc5dd31f95610d6838e4c3707063456a7d","slot":null},{"block":null,"method":"eth_call","params":["0x56E24a3386bAa4F9028ee11660D2E5f9c306D7BB","getReserves()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x56E24a3386bAa4F9028ee11660D2E5f9c306D7BB","factory()"],"raw_result":"0xca143ce32fe78f1f7019d7d551a6402fc5350c73","result_hash":"cca9f0708cbe3ba281b9d1b8ebd0a086cc47571f860d681f7f16e9e8a73617f9","slot":null},{"block":null,"method":"eth_call","params":["0xcA143Ce32Fe78f1f7019d7d551a6402fC5350c73","getPair","0x372d9b65624D6E9B7E839D5D8E4561a7Aff57777","0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03"],"raw_result":"0x56e24a3386baa4f9028ee11660d2e5f9c306d7bb","result_hash":"f97417a0b7eac970875832a9618d2b8da6e5cd4ffea15b86737685c18d89f6ca","slot":null},{"block":null,"method":"eth_call","params":["0x372d9b65624D6E9B7E839D5D8E4561a7Aff57777","symbol()"],"raw_result":"Some(\"SCI6900\")","result_hash":"0631fbe46f4aea06be8c93c6c805a5449ac6a95963f152374639297f290431fd","slot":null},{"block":null,"method":"eth_call","params":["0x372d9b65624D6E9B7E839D5D8E4561a7Aff57777","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x372d9b65624D6E9B7E839D5D8E4561a7Aff57777","balanceOf","0x56E24a3386bAa4F9028ee11660D2E5f9c306D7BB"],"raw_result":"Some(\"10766977597376743597760789\")","result_hash":"854454a385ab2824d5bfb1ab7117a91563f07bccfe75d65947ca81db318574d5","slot":null},{"block":null,"method":"eth_call","params":["0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","symbol()"],"raw_result":"Some(\"KWEBon\")","result_hash":"4eb0062ee1a08ec29f23dde5818040111ae78c9dafbcf2651864fcd888cdf8be","slot":null},{"block":null,"method":"eth_call","params":["0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","balanceOf","0x56E24a3386bAa4F9028ee11660D2E5f9c306D7BB"],"raw_result":"Some(\"4283367451144471345\")","result_hash":"ee39eff699464ffb860066689612d3b8fbb16aefa09b76e24a2087f433f74424","slot":null},{"block":null,"method":"eth_call","params":["0x372d9b65624D6E9B7E839D5D8E4561a7Aff57777","symbol()"],"raw_result":"Some(\"SCI6900\")","result_hash":"0631fbe46f4aea06be8c93c6c805a5449ac6a95963f152374639297f290431fd","slot":null},{"block":null,"method":"eth_call","params":["0x372d9b65624D6E9B7E839D5D8E4561a7Aff57777","name()"],"raw_result":"Some(\"上证综合指数69000\")","result_hash":"635a4227e92b1e6e3f129dbdc8734d3bba58f49aca7aca4a382b0508d5f824cc","slot":null},{"block":null,"method":"eth_call","params":["0x372d9b65624D6E9B7E839D5D8E4561a7Aff57777","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x372d9b65624D6E9B7E839D5D8E4561a7Aff57777","totalSupply()"],"raw_result":"Some(\"1000000000000000000000000000\")","result_hash":"9a5063c327faec672db6b50450571675cbfbcc3766ebaf6832c3a9f6636ff4d0","slot":null},{"block":null,"method":"eth_call","params":["0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","symbol()"],"raw_result":"Some(\"KWEBon\")","result_hash":"4eb0062ee1a08ec29f23dde5818040111ae78c9dafbcf2651864fcd888cdf8be","slot":null},{"block":null,"method":"eth_call","params":["0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","name()"],"raw_result":"Some(\"KraneShares CSI China Internet ETF (Ondo Tokenized)\")","result_hash":"9e273cdaa94a41cff12c70d82ae4e7747531bc1d7bbeb6872e7b1eff920e7c7a","slot":null},{"block":null,"method":"eth_call","params":["0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","totalSupply()"],"raw_result":"Some(\"756630486684424683136\")","result_hash":"56a89530b42dd55c5438d428a4c2b476c8799f7e9a97bb7bfffdfcf1913eaf56","slot":null},{"block":null,"method":"eth_getCode","params":["0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null},{"block":null,"method":"eth_getCode","params":["0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null}],"registry_entry":{"chain":"bnb","contract":"0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","decimals":null,"issuer":"Ondo","last_checked":"2026-10-24T10:48:50Z","name":"KraneShares CSI China Internet ETF (Ondo Tokenized)","official_deployments":[{"address":"0xeAA2287290544eD9F481012aa348619A4D2F9e51","network":"Ethereum"},{"address":"0x7437203800140BA7d9081ddE8cEF09EE40E3Bf03","network":"BNB Chain"},{"address":"DVPSYdqWPLvNa8afnEqa3B9eDfTTWpGyUZeXvdMondo","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":"KWEB"},"registry_hash":"21fe350e66a990a5ac10fb1fd6ec551cfcccdfba2b1676b24d2e9a5a8d6f4c65","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x56E24a3386bAa4F9028ee11660D2E5f9c306D7BB","ticker":"KWEB","verdict":{"Verified":{"issuer":"Ondo","ticker":"KWEB"}},"version":1}

Signature

DTHYfArVNTsOf/UHks4UmC+nrqjxHy7/7Y2kCHl8iWvJtV1rNteKd2utlgdGRvywwKIDHL2jIS3B8IatgBynCg==

API call

GET /api/attest/045d6b4dd3ea186744abb1078124b4c244aeb38a4d7b9da946dc32113982bf3a

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.