QED
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QED certificate

QED record ecc01f6c2266 from . View the live pool page.

Verified · Robinhood UMC

Does UMC / USDG match its issuer's published contract?

The pool's quote contract matches Robinhood's registry entry for UMC.

Verified means the observed quote-token contract matches an issuer-published registry entry on Robinhood Chain. Only the quote-side contract is checked.

This does not prove backing, custody, reserves, price, safety, solvency, or endorsement.

Signature valid · contract match

Robinhood Chain Uniswap v4
Subject
UMC / USDG · Robinhood Chain
Pool address
0xbba762f4ea3498286aa62323120bb190416fee7018d6cd7881eb5bf19578edaf
Issuer match
Robinhood · UMC · View UMC contracts
Checked
Valid until
Serial
ecc01f6c2266
Signed by
QED (key id GJWKkiUd)

After this time the certificate remains a historical record, but it no longer establishes current pool or registry state. Re-check to create a fresh observation before relying on current facts.

Compare this address with the one you were given before you trade.

23.33% Checked

Only trust an address you pasted here or opened from this page.

How to verify this yourself

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":95270562,"chain":"robinhood","checked_at":"2026-10-22T17:03:54Z","dev":false,"expires_at":"2026-10-23T17:03:54Z","issuer":"Robinhood","pool":{"base":{"address":"0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","balance":"42486474045323379698","decimals":18,"symbol":"UMC"},"chain":"robinhood","dex":"uniswap-v4","pool":"0xbba762f4ea3498286aa62323120bb190416fee7018d6cd7881eb5bf19578edaf","quote":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"822529597","decimals":6,"symbol":"USDG"}},"quote_share_of_supply":0.23334985085748153,"reads":[{"block":null,"method":"eth_call","params":["0x58daec3116aae6d93017baaea7749052e8a04fa7","poolKeys","0xbba762f4ea3498286aa62323120bb190416fee7018d6cd7881"],"raw_result":"Object {\"currency0\": String(\"0x0e6e67ba88e7b5d9b67636a215c76779b948de79\"), \"currency1\": String(\"0x5fc5360d0400a0fd4f2af552add042d716f1d168\"), \"fee\": String(\"50000\"), \"hooks\": String(\"0x0000000000000000000000000000000000000000\"), \"tickSpacing\": String(\"500\")}","result_hash":"219d905d3fc1293149be43d649a43072d223fc084efefed4c633668f2921ff3a","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getSlot0","0xbba762f4ea3498286aa62323120bb190416fee7018d6cd7881eb5bf19578edaf"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getLiquidity","0xbba762f4ea3498286aa62323120bb190416fee7018d6cd7881eb5bf19578edaf"],"raw_result":"186939515292818","result_hash":"8a2fdca5f3f8aca112254f4432a7211f594295df315705c64f94e1a3c35f4e68","slot":null},{"block":null,"method":"eth_call","params":["0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","symbol()"],"raw_result":"Some(\"UMC\")","result_hash":"1bfadb512a8f2b84a95b17a2d75c80d71fd8f4218eadd4bb0bda6af1c40737df","slot":null},{"block":null,"method":"eth_call","params":["0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","symbol()"],"raw_result":"Some(\"USDG\")","result_hash":"5cbfd9547b12ffd28d96e5f55c97290c4f230a8d7ad7bbe91dc15f2e61c1a3c5","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","decimals()"],"raw_result":"Some(6)","result_hash":"c68fe6989b1835302197d0af5be845dfab10ed9f9632205eb4ab5b949b9e1a6a","slot":null},{"block":95270562,"method":"eth_blockNumber","params":[],"result_hash":"4181ffb4ddd5c9be0b20229c764474ca93fd9d8aa5091f94f7b965c99eed5136","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","symbol()"],"raw_result":"Some(\"USDG\")","result_hash":"5cbfd9547b12ffd28d96e5f55c97290c4f230a8d7ad7bbe91dc15f2e61c1a3c5","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","name()"],"raw_result":"Some(\"Global Dollar\")","result_hash":"e34c795a5a7df6a2269bde7247321204357731d7742ef5974b04eb6899db8b11","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","decimals()"],"raw_result":"Some(6)","result_hash":"c68fe6989b1835302197d0af5be845dfab10ed9f9632205eb4ab5b949b9e1a6a","slot":null},{"block":null,"method":"eth_call","params":["0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","totalSupply()"],"raw_result":"Some(\"696615370883965\")","result_hash":"63ad2d95f6b1f2614902f06371ad2477d1524bd3e672fceead4d1218c7cc49d0","slot":null},{"block":null,"method":"eth_call","params":["0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","symbol()"],"raw_result":"Some(\"UMC\")","result_hash":"1bfadb512a8f2b84a95b17a2d75c80d71fd8f4218eadd4bb0bda6af1c40737df","slot":null},{"block":null,"method":"eth_call","params":["0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","name()"],"raw_result":"Some(\"United Microelectronics • Robinhood Token\")","result_hash":"336364004922ec840d9ba5caca24b71e2d2ffba3a67200949a18964cb57d6582","slot":null},{"block":null,"method":"eth_call","params":["0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","totalSupply()"],"raw_result":"Some(\"182072000000000000000\")","result_hash":"43390a913ef4dd3ad09bdc718049b7c90145af352dad614ac14adf501ef5c15e","slot":null},{"block":null,"method":"eth_call","params":["0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"robinhood","contract":"0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-22T16:11:44Z","name":"United Microelectronics","official_deployments":[{"address":"0x0E6e67Ba88e7b5d9B67636A215c76779B948dE79","network":"Robinhood Chain"}],"source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"UMC"},"registry_hash":"8bd697968d36b4979cb61600b5f9df6688ad8f39875bfe97a1cfb695a58a69e3","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xbba762f4ea3498286aa62323120bb190416fee7018d6cd7881eb5bf19578edaf","ticker":"UMC","verdict":{"Verified":{"issuer":"Robinhood","ticker":"UMC"}},"version":1}
Signature
2hEz3lXz2Tctw0d1tPg2zSzBMaBPootzs37r0NXEaZXqGKMTIqBVQqx24opWX2YmONhA2/wyEwnTG2NuSL6qAg==
API call
GET /api/attest/ecc01f6c2266379296f74468617ab328bdc26e2b37a0fdb8ec683e30b86a54a6
  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.