Does GOOGLon / SPCXx 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":26229379,"chain":"ethereum","checked_at":"2026-10-19T21:42:35Z","dev":false,"expires_at":"2026-10-20T21:42:35Z","issuer":"Ondo","pool":{"base":{"address":"0x68fa48B1C2FE52b3D776E1953e0E782b5044Ce28","balance":"14008596803379296375","decimals":18,"symbol":"SPCXx"},"chain":"ethereum","dex":"uniswap-v3","pool":"0x1f5D68A87847A122684BB456e44E3A522A4AfcC0","quote":{"address":"0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","balance":"9219932676864911996","decimals":18,"symbol":"GOOGLon"}},"quote_share_of_supply":0.0002860477451236148,"reads":[{"block":26229379,"method":"eth_blockNumber","params":[],"result_hash":"92fae5504a1a2275060db4c3c201494f549387d9a1834a163c19b5e0f042b9bc","slot":null},{"block":null,"method":"eth_call","params":["0x1f5D68A87847A122684BB456e44E3A522A4AfcC0","token0()"],"raw_result":"0x68fa48b1c2fe52b3d776e1953e0e782b5044ce28","result_hash":"7026d35b349fb3ae6aeb1941c7ca31f197ef75d99776e799ff166b519319b6ad","slot":null},{"block":null,"method":"eth_call","params":["0x1f5D68A87847A122684BB456e44E3A522A4AfcC0","token1()"],"raw_result":"0xba47214edd2bb43099611b208f75e4b42fdcfedc","result_hash":"3f0aff5cb0c761185c1e45d536f8974b5f6eeb6fb60467e361d5abb6fe85b877","slot":null},{"block":null,"method":"eth_call","params":["0x1f5D68A87847A122684BB456e44E3A522A4AfcC0","getReserves()"],"raw_result":"false","result_hash":"076de6e730df0b4c3860877a0f619c6ac11f8aefd78313ac793a2a703c026869","slot":null},{"block":null,"method":"eth_call","params":["0x1f5D68A87847A122684BB456e44E3A522A4AfcC0","slot0()"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0x1f5D68A87847A122684BB456e44E3A522A4AfcC0","factory()"],"raw_result":"0x1f98431c8ad98523631ae4a59f267346ea31f984","result_hash":"24b698329e82b3994906dfbd01281d9a6f12f65aa59de65831657e6e928d4c80","slot":null},{"block":null,"method":"eth_call","params":["0x1f5D68A87847A122684BB456e44E3A522A4AfcC0","fee()"],"raw_result":"10000","result_hash":"328d48ab2376d2f42d3af5ba69086143c8f5fe883ed195a8280b2154a5711a33","slot":null},{"block":null,"method":"eth_call","params":["0x1F98431c8aD98523631AE4a59f267346ea31F984","getPool","0x68fa48B1C2FE52b3D776E1953e0E782b5044Ce28","0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","0x2710"],"raw_result":"0x1f5d68a87847a122684bb456e44e3a522a4afcc0","result_hash":"ff3593318264920fbb91073741f4fd094aa5549bb3c46d5eab7f8ccab141a494","slot":null},{"block":null,"method":"eth_call","params":["0x68fa48B1C2FE52b3D776E1953e0E782b5044Ce28","symbol()"],"raw_result":"Some(\"SPCXx\")","result_hash":"965a6f237aaee688ad603e4d33f980be96f2d8a203b54e7af87e31a5fa74821b","slot":null},{"block":null,"method":"eth_call","params":["0x68fa48B1C2FE52b3D776E1953e0E782b5044Ce28","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x68fa48B1C2FE52b3D776E1953e0E782b5044Ce28","balanceOf","0x1f5D68A87847A122684BB456e44E3A522A4AfcC0"],"raw_result":"Some(\"14008596803379296375\")","result_hash":"079b88eb14215ebfe92712878baccaa62bd2aa1f835b27884af4438a9054792c","slot":null},{"block":null,"method":"eth_call","params":["0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","symbol()"],"raw_result":"Some(\"GOOGLon\")","result_hash":"5f0da529cc5c6a9b601a92dbb9ddd08f3c411dfe3510345cfcd1dfea7608ef98","slot":null},{"block":null,"method":"eth_call","params":["0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","balanceOf","0x1f5D68A87847A122684BB456e44E3A522A4AfcC0"],"raw_result":"Some(\"9219932676864911996\")","result_hash":"5c47a78d41a99aa8e189b2a7748d96a54e797bee524551711c72290b8b9a9bc9","slot":null},{"block":null,"method":"eth_call","params":["0x68fa48B1C2FE52b3D776E1953e0E782b5044Ce28","symbol()"],"raw_result":"Some(\"SPCXx\")","result_hash":"965a6f237aaee688ad603e4d33f980be96f2d8a203b54e7af87e31a5fa74821b","slot":null},{"block":null,"method":"eth_call","params":["0x68fa48B1C2FE52b3D776E1953e0E782b5044Ce28","name()"],"raw_result":"Some(\"SpaceX xStock\")","result_hash":"f3e330aa060e551d81d53f26682fa521fc98ad2f6852293752beef7a3402d2ba","slot":null},{"block":null,"method":"eth_call","params":["0x68fa48B1C2FE52b3D776E1953e0E782b5044Ce28","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x68fa48B1C2FE52b3D776E1953e0E782b5044Ce28","totalSupply()"],"raw_result":"Some(\"320000000000000000000000\")","result_hash":"9664b0ed2b98a8318365abf6cd02d77802f08162fd5e3fee63c8fd850a588667","slot":null},{"block":null,"method":"eth_call","params":["0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","symbol()"],"raw_result":"Some(\"GOOGLon\")","result_hash":"5f0da529cc5c6a9b601a92dbb9ddd08f3c411dfe3510345cfcd1dfea7608ef98","slot":null},{"block":null,"method":"eth_call","params":["0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","name()"],"raw_result":"Some(\"Alphabet Class A (Ondo Tokenized)\")","result_hash":"fe13bb1d7daa6ed02f005adb2079e56324ed37c2a4d6694e82a1699e811c4b4f","slot":null},{"block":null,"method":"eth_call","params":["0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","totalSupply()"],"raw_result":"Some(\"32232145975772478920479\")","result_hash":"2abc88f68136a5f83f8b48e208224bf917364088d39171f674b88f2225c0d1b7","slot":null},{"block":null,"method":"eth_getCode","params":["0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null},{"block":null,"method":"eth_getCode","params":["0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","latest"],"result_hash":"8538a8190a64db88a5e0ec4c95f0129f9eecd6f3a3aacb869262b82d01d123ec","slot":null}],"registry_entry":{"chain":"ethereum","contract":"0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","decimals":null,"issuer":"Ondo","last_checked":"2026-10-19T21:40:22Z","name":"Alphabet Class A (Ondo Tokenized)","official_deployments":[{"address":"0xbA47214eDd2bb43099611b208f75E4b42FDcfEDc","network":"Ethereum"},{"address":"0x091FC7778e6932d4009B087B191D1EE3bac5729A","network":"BNB Chain"},{"address":"bbahNA5vT9WJeYft8tALrH1LXWffjwqVoUbqYa1ondo","network":"Solana"},{"address":"0x4D34798f18Eb747F7225663F0553eA2D880cf75D","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":"GOOGL"},"registry_hash":"37f76e783440d042a6ba377568afbebcf983880e6cc47a429b6670672394702e","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x1f5D68A87847A122684BB456e44E3A522A4AfcC0","ticker":"GOOGL","verdict":{"Verified":{"issuer":"Ondo","ticker":"GOOGL"}},"version":1}

Signature

tQVo+JD1iYnvv2sKzuHoFt7kylneayqvQOJz0GUPrOSuPP4cF1/bnqiRRagbh4vcIleGJcLOUHn3a0U9ifPzCQ==

API call

GET /api/attest/88903087f270787892c070688af368a24d8cef913d11b56ffea4ac318faf8840

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.