QED
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QED certificate

QED record e2f1044ea1a7 from . View the live pool page.

Verified · Robinhood CTSH

Does CTSH / Unknown match its issuer's published contract?

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

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
CTSH / Unknown · Robinhood Chain
Pool address
0xe5c815147ae37e92f1601df5e54f9f49222bb5c19dc0c9b8cf73d9e7f5fdb8eb
Issuer match
Robinhood · CTSH · View CTSH contracts
Checked
Valid until
Serial
e2f1044ea1a7
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.

45.79% 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":93805489,"chain":"robinhood","checked_at":"2026-10-20T22:43:47Z","dev":false,"expires_at":"2026-10-21T22:43:47Z","issuer":"Robinhood","pool":{"base":{"address":"0x0000000000000000000000000000000000000000","balance":"1101883077443828551","decimals":null,"symbol":null},"chain":"robinhood","dex":"uniswap-v4","pool":"0xe5c815147ae37e92f1601df5e54f9f49222bb5c19dc0c9b8cf73d9e7f5fdb8eb","quote":{"address":"0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","balance":"40753816753181059868","decimals":18,"symbol":"CTSH"}},"quote_share_of_supply":0.4578823296801422,"reads":[{"block":null,"method":"eth_call","params":["0x58daec3116aae6d93017baaea7749052e8a04fa7","poolKeys","0xe5c815147ae37e92f1601df5e54f9f49222bb5c19dc0c9b8cf"],"raw_result":"Object {\"currency0\": String(\"0x0000000000000000000000000000000000000000\"), \"currency1\": String(\"0x63d5a3b6939a33f1e75d8bcd85759858239600db\"), \"fee\": String(\"50000\"), \"hooks\": String(\"0x0000000000000000000000000000000000000000\"), \"tickSpacing\": String(\"500\")}","result_hash":"bb0017cb3d5ac0f78e05de68174235dd7b37b8e2d26c0f225546bf96c6180845","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getSlot0","0xe5c815147ae37e92f1601df5e54f9f49222bb5c19dc0c9b8cf73d9e7f5fdb8eb"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getLiquidity","0xe5c815147ae37e92f1601df5e54f9f49222bb5c19dc0c9b8cf73d9e7f5fdb8eb"],"raw_result":"6701189522881516238","result_hash":"56cdc030134dd25663f48916a4710fb9bfaa662901ac2927298df145ac7a98e5","slot":null},{"block":null,"method":"eth_call","params":["0x0000000000000000000000000000000000000000","symbol()"],"raw_result":"None","result_hash":"f2953d2931e36d0c55640f51865f8394ebe52194765d04e521017232558f871c","slot":null},{"block":null,"method":"eth_call","params":["0x0000000000000000000000000000000000000000","decimals()"],"raw_result":"None","result_hash":"f2953d2931e36d0c55640f51865f8394ebe52194765d04e521017232558f871c","slot":null},{"block":null,"method":"eth_call","params":["0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","symbol()"],"raw_result":"Some(\"CTSH\")","result_hash":"92faaf1fb8ebb0d7f539a3762855170e77ada3ce2441707e9b819ef8fb456fbc","slot":null},{"block":null,"method":"eth_call","params":["0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":93805489,"method":"eth_blockNumber","params":[],"result_hash":"3986d323ac33d3a26c62a66575302c4f1190290b0d80a9a44a71b93633845042","slot":null},{"block":null,"method":"eth_call","params":["0x0000000000000000000000000000000000000000","symbol()"],"raw_result":"None","result_hash":"f2953d2931e36d0c55640f51865f8394ebe52194765d04e521017232558f871c","slot":null},{"block":null,"method":"eth_call","params":["0x0000000000000000000000000000000000000000","name()"],"raw_result":"None","result_hash":"f2953d2931e36d0c55640f51865f8394ebe52194765d04e521017232558f871c","slot":null},{"block":null,"method":"eth_call","params":["0x0000000000000000000000000000000000000000","decimals()"],"raw_result":"None","result_hash":"f2953d2931e36d0c55640f51865f8394ebe52194765d04e521017232558f871c","slot":null},{"block":null,"method":"eth_call","params":["0x0000000000000000000000000000000000000000","totalSupply()"],"raw_result":"None","result_hash":"f2953d2931e36d0c55640f51865f8394ebe52194765d04e521017232558f871c","slot":null},{"block":null,"method":"eth_call","params":["0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","symbol()"],"raw_result":"Some(\"CTSH\")","result_hash":"92faaf1fb8ebb0d7f539a3762855170e77ada3ce2441707e9b819ef8fb456fbc","slot":null},{"block":null,"method":"eth_call","params":["0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","name()"],"raw_result":"Some(\"Cognizant • Robinhood Token\")","result_hash":"b7261915a1ba50f4af09c4ca83dc77533d68ea377e38199500e9afad4c012d70","slot":null},{"block":null,"method":"eth_call","params":["0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","totalSupply()"],"raw_result":"Some(\"89005000000000000000\")","result_hash":"7e8ed9d64ecd437c0073c387e35742f8aefbb993bf6ceb9daeede5404cef78f7","slot":null},{"block":null,"method":"eth_call","params":["0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"robinhood","contract":"0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-20T22:40:19Z","name":"Cognizant","official_deployments":[{"address":"0x63D5a3b6939a33f1e75d8Bcd85759858239600DB","network":"Robinhood Chain"}],"source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"CTSH"},"registry_hash":"698e0b723609a64252d3fe0abab84cef29cab910ef734373bd5f90f1d1a69cde","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0xe5c815147ae37e92f1601df5e54f9f49222bb5c19dc0c9b8cf73d9e7f5fdb8eb","ticker":"CTSH","verdict":{"Verified":{"issuer":"Robinhood","ticker":"CTSH"}},"version":1}
Signature
57jq7T8aqtlLoSsWuNhB4kyz8R4bZXtBhNwGEuAt/OkGCyFLCH5JTrKe0ElCMAmZcJy96LXnusbtFDCufn45Cg==
API call
GET /api/attest/e2f1044ea1a7a2b372fc36d7a6eb617a3f083dbc5aaae00429cf8417e0de1ad4
  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.