QED
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QED certificate

QED record 9b570cf05f94 from . View the live pool page.

Verified · Robinhood SLS

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

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

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
SLS / USDG · Robinhood Chain
Pool address
0xeac99c4a9e4244a762abbcabc07780ff3a3228de0404942ea18e53e7afba37dc
Issuer match
Robinhood · SLS · View SLS contracts
Checked
Valid until
Serial
9b570cf05f94
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.

12.38% 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":93855201,"chain":"robinhood","checked_at":"2026-10-21T00:11:25Z","dev":false,"expires_at":"2026-10-22T00:11:25Z","issuer":"Robinhood","pool":{"base":{"address":"0x285b231728c7E4333799183DF1094d775246a535","balance":"37896588673479785213","decimals":18,"symbol":"SLS"},"chain":"robinhood","dex":"uniswap-v4","pool":"0xeac99c4a9e4244a762abbcabc07780ff3a3228de0404942ea18e53e7afba37dc","quote":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"421958588","decimals":6,"symbol":"USDG"}},"quote_share_of_supply":0.12384506102444374,"reads":[{"block":null,"method":"eth_call","params":["0x58daec3116aae6d93017baaea7749052e8a04fa7","poolKeys","0xeac99c4a9e4244a762abbcabc07780ff3a3228de0404942ea1"],"raw_result":"Object {\"currency0\": String(\"0x285b231728c7e4333799183df1094d775246a535\"), \"currency1\": String(\"0x5fc5360d0400a0fd4f2af552add042d716f1d168\"), \"fee\": String(\"50000\"), \"hooks\": String(\"0x0000000000000000000000000000000000000000\"), \"tickSpacing\": String(\"500\")}","result_hash":"3e6f138856b73875cc5193185740936e7c1575b988c867cebf46889f72c401f9","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getSlot0","0xeac99c4a9e4244a762abbcabc07780ff3a3228de0404942ea18e53e7afba37dc"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getLiquidity","0xeac99c4a9e4244a762abbcabc07780ff3a3228de0404942ea18e53e7afba37dc"],"raw_result":"126454699680579","result_hash":"cc7d4429d408236f3cce76fbfc0e5e0b3175ec1845a5706be6dc3ba57dbf6a6c","slot":null},{"block":null,"method":"eth_call","params":["0x285b231728c7E4333799183DF1094d775246a535","symbol()"],"raw_result":"Some(\"SLS\")","result_hash":"5f896d4340b3cf0f700e9b250175d707fbd789892a5d541e6b2c065580d8f29c","slot":null},{"block":null,"method":"eth_call","params":["0x285b231728c7E4333799183DF1094d775246a535","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":93855201,"method":"eth_blockNumber","params":[],"result_hash":"cd390f4693de3b92f738ef32c794040aec6fe1f2a85b6aad538ffe826adabcd5","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(\"689942553355147\")","result_hash":"54b4859e177a16df8cdf4457c840c921379b10ca04eeb5b4e4b096181d88762b","slot":null},{"block":null,"method":"eth_call","params":["0x285b231728c7E4333799183DF1094d775246a535","symbol()"],"raw_result":"Some(\"SLS\")","result_hash":"5f896d4340b3cf0f700e9b250175d707fbd789892a5d541e6b2c065580d8f29c","slot":null},{"block":null,"method":"eth_call","params":["0x285b231728c7E4333799183DF1094d775246a535","name()"],"raw_result":"Some(\"SELLAS Life Sciences • Robinhood Token\")","result_hash":"fd83a1f51d2dd16ca8c437c63221a61a26c5e556634b06e3e577912beb9f6ce7","slot":null},{"block":null,"method":"eth_call","params":["0x285b231728c7E4333799183DF1094d775246a535","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x285b231728c7E4333799183DF1094d775246a535","totalSupply()"],"raw_result":"Some(\"306000000000000000000\")","result_hash":"1da33954b2e5ef6b1610d5b0bc86fcee5f68af6ad702fdab174a2ee7f1522dcf","slot":null},{"block":null,"method":"eth_call","params":["0x285b231728c7E4333799183DF1094d775246a535","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0x285b231728c7E4333799183DF1094d775246a535","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x285b231728c7E4333799183DF1094d775246a535","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"robinhood","contract":"0x285b231728c7E4333799183DF1094d775246a535","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-20T23:40:19Z","name":"SELLAS Life Sciences","official_deployments":[{"address":"0x285b231728c7E4333799183DF1094d775246a535","network":"Robinhood Chain"}],"source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"SLS"},"registry_hash":"8d2205cbc926ccb1fa014b1299584fa29b2f2d543ccc68a7b8ffa24c57ead077","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xeac99c4a9e4244a762abbcabc07780ff3a3228de0404942ea18e53e7afba37dc","ticker":"SLS","verdict":{"Verified":{"issuer":"Robinhood","ticker":"SLS"}},"version":1}
Signature
qzPJuZKbo5A5wlwruWq1TlILJNHPml8BFoDZ2rfRuoQvosNzN8xjRTmurimHiWPzVXPRLy39cWDxOltMNHrkDQ==
API call
GET /api/attest/9b570cf05f94105a9e13d869a5356b87c023fa1c4cf987fe41be6448e4c5a565
  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.