Does AAPLon / 比特币 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":128342101,"chain":"bnb","checked_at":"2026-10-18T09:56:50Z","dev":false,"expires_at":"2026-10-19T09:56:50Z","issuer":"Ondo","pool":{"base":{"address":"0x18d0e455B3491E09210292d3953157A4Bf104444","balance":"60787554170485869781318","decimals":18,"symbol":"比特币"},"chain":"bnb","dex":"uniswap-v3","pool":"0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3","quote":{"address":"0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","balance":"4190563841676629757","decimals":18,"symbol":"AAPLon"}},"quote_share_of_supply":0.0003900920751825551,"reads":[{"block":128342101,"method":"eth_blockNumber","params":[],"result_hash":"5923c5d1961337d27ada466e5d00e111119d134b26973892c35dd3e86d0dc311","slot":null},{"block":null,"method":"eth_call","params":["0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3","token0()"],"raw_result":"0x18d0e455b3491e09210292d3953157a4bf104444","result_hash":"8bdef4b93a8e327bcf767bd3f339c81d34d1067224b7efa85403b3e3b14f0a6a","slot":null},{"block":null,"method":"eth_call","params":["0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3","token1()"],"raw_result":"0x390a684ef9cade28a7ad0dfa61ab1eb3842618c4","result_hash":"ccdb209ceb029a206fba4ec7cf8950e2167332074d4b4ca29505eb490f81c623","slot":null},{"block":null,"method":"eth_call","params":["0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3","factory()"],"raw_result":"0xdb1d10011ad0ff90774d0c6bb92e5c5c8b4461f7","result_hash":"4b482521d7cb760d72486691996fad9e93bcdcc2309e6fc4881175fe267d7fec","slot":null},{"block":null,"method":"eth_call","params":["0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3","fee()"],"raw_result":"3000","result_hash":"53232d7da9fd2a1931dcd44af08ec415dd52ab8ecc4037ef5e68eb3753978a2e","slot":null},{"block":null,"method":"eth_call","params":["0xdB1d10011AD0Ff90774D0C6Bb92e5C5c8b4461F7","getPool","0x18d0e455B3491E09210292d3953157A4Bf104444","0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","0xbb8"],"raw_result":"0x89eab520e6f5e97faf0a2a3668c8e6df7f82b9b3","result_hash":"628cc21d517f7844a3979c9433997a39e40bb2ed2599a51a25fbfcaf48c4a064","slot":null},{"block":null,"method":"eth_call","params":["0x18d0e455B3491E09210292d3953157A4Bf104444","symbol()"],"raw_result":"Some(\"比特币\")","result_hash":"713201f538a68ecc1b2cfb0b153ffa8a29f7202e140546ed5e41cd6217f174c0","slot":null},{"block":null,"method":"eth_call","params":["0x18d0e455B3491E09210292d3953157A4Bf104444","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x18d0e455B3491E09210292d3953157A4Bf104444","balanceOf","0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3"],"raw_result":"Some(\"60787554170485869781318\")","result_hash":"9c1e584ee1f3fc19ada02fff6ff27b442a5ccff5c53d5a9054519cdf3b1595c3","slot":null},{"block":null,"method":"eth_call","params":["0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","symbol()"],"raw_result":"Some(\"AAPLon\")","result_hash":"6cfe5b4e813b281042afd14ebca189eb981c006670cba86b1070efb6a2bf8980","slot":null},{"block":null,"method":"eth_call","params":["0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","balanceOf","0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3"],"raw_result":"Some(\"4190563841676629757\")","result_hash":"af4b284d5fa231eb2d2294785160f74abd387f1bf8c3227e715b314a75cc65d2","slot":null},{"block":null,"method":"eth_call","params":["0x18d0e455B3491E09210292d3953157A4Bf104444","symbol()"],"raw_result":"Some(\"比特币\")","result_hash":"713201f538a68ecc1b2cfb0b153ffa8a29f7202e140546ed5e41cd6217f174c0","slot":null},{"block":null,"method":"eth_call","params":["0x18d0e455B3491E09210292d3953157A4Bf104444","name()"],"raw_result":"Some(\"比特币\")","result_hash":"713201f538a68ecc1b2cfb0b153ffa8a29f7202e140546ed5e41cd6217f174c0","slot":null},{"block":null,"method":"eth_call","params":["0x18d0e455B3491E09210292d3953157A4Bf104444","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x18d0e455B3491E09210292d3953157A4Bf104444","totalSupply()"],"raw_result":"Some(\"1000000000000000000000000000\")","result_hash":"9a5063c327faec672db6b50450571675cbfbcc3766ebaf6832c3a9f6636ff4d0","slot":null},{"block":null,"method":"eth_call","params":["0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","symbol()"],"raw_result":"Some(\"AAPLon\")","result_hash":"6cfe5b4e813b2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(Ondo Tokenized)\")","result_hash":"4df95367ca8dd5dbcedce101864ce0e8244551d86114f5d7fd8d5b2fc863e216","slot":null},{"block":null,"method":"eth_call","params":["0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","totalSupply()"],"raw_result":"Some(\"10742499292546590576317\")","result_hash":"e331f748738da7dabd1be83df2923edbda98fceafd2dad029cfca07d96344b81","slot":null},{"block":null,"method":"eth_getCode","params":["0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null},{"block":null,"method":"eth_getCode","params":["0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","latest"],"result_hash":"94608f5be99dad7eba2f1291156fff602e3d7e462e4517d8f65af38ba0f4b7b4","slot":null}],"registry_entry":{"chain":"bnb","contract":"0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","decimals":null,"issuer":"Ondo","last_checked":"2026-10-18T09:47:35Z","name":"Apple (Ondo Tokenized)","official_deployments":[{"address":"0x14c3abF95Cb9C93a8b82C1CdCB76D72Cb87b2d4c","network":"Ethereum"},{"address":"0x390a684EF9cADE28A7AD0DFa61AB1Eb3842618c4","network":"BNB Chain"},{"address":"123mYEnRLM2LLYsJW3K6oyYh8uP1fngj732iG638ondo","network":"Solana"},{"address":"0x81db0DF77669b3BE563e7a0591685a2C8C3EE1c5","network":"HyperEVM"}],"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":"AAPL"},"registry_hash":"3143486c8ed17e52c07540b096bdf4ef50abfca368b23311d9290e9923561570","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x89eab520E6F5E97fAF0a2a3668c8E6Df7F82b9b3","ticker":"AAPL","verdict":{"Verified":{"issuer":"Ondo","ticker":"AAPL"}},"version":1}

Signature

oh6c4P3z+dYFJ3akfIDZY1dOtEw2YPyrWW2x66MclwcHK7xh6AHwcn8P2KeIfPVogoT+lD/gInr2RdeBMlTtCw==

API call

GET /api/attest/4f2142866b3c90fecec269ef88e0af7d2df5e087dc64a784451f906f9695c5ab

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.