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QED certificate

QED record 4a78c86d4875 from . View the live pool page.

Verified · Robinhood TSEM

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

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

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
TSEM / Unknown · Robinhood Chain
Pool address
0x317a59ec57393dbda7bed86b27b768b1e97f132bd5ac883344611832ac42d895
Issuer match
Robinhood · TSEM · View TSEM contracts
Checked
Valid until
Serial
4a78c86d4875
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.

42.63% 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":94286776,"chain":"robinhood","checked_at":"2026-10-21T12:36:09Z","dev":false,"expires_at":"2026-10-22T12:36:09Z","issuer":"Robinhood","pool":{"base":{"address":"0x0000000000000000000000000000000000000000","balance":"1141432632845917241","decimals":null,"symbol":null},"chain":"robinhood","dex":"uniswap-v4","pool":"0x317a59ec57393dbda7bed86b27b768b1e97f132bd5ac883344611832ac42d895","quote":{"address":"0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","balance":"14935966707503142499","decimals":18,"symbol":"TSEM"}},"quote_share_of_supply":0.42632775896281166,"reads":[{"block":null,"method":"eth_call","params":["0x58daec3116aae6d93017baaea7749052e8a04fa7","poolKeys","0x317a59ec57393dbda7bed86b27b768b1e97f132bd5ac883344"],"raw_result":"Object {\"currency0\": String(\"0x0000000000000000000000000000000000000000\"), \"currency1\": String(\"0x89776d4cd68193597a2fc132cfac1fde36ccea8a\"), \"fee\": String(\"50000\"), \"hooks\": String(\"0x0000000000000000000000000000000000000000\"), \"tickSpacing\": String(\"500\")}","result_hash":"4ce9f3b67c287e5252702857c29932bc8a78281142f3e9d759d4aff2775ee2cb","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getSlot0","0x317a59ec57393dbda7bed86b27b768b1e97f132bd5ac883344611832ac42d895"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getLiquidity","0x317a59ec57393dbda7bed86b27b768b1e97f132bd5ac883344611832ac42d895"],"raw_result":"4128970792224652907","result_hash":"8b8a61e5c24b7e7fb0aaf95c021e162b1d7029e069d2a9854720cd6bf550aa35","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":["0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","symbol()"],"raw_result":"Some(\"TSEM\")","result_hash":"226baf806211fe55587b63d5e4c88a64e37ac60e0ae9e2e3d83435165cda3635","slot":null},{"block":null,"method":"eth_call","params":["0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":94286776,"method":"eth_blockNumber","params":[],"result_hash":"8316282aa96962e7ac33ff1fe02421f97b2225caf75bfe031d097d3087bcb78a","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":["0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","symbol()"],"raw_result":"Some(\"TSEM\")","result_hash":"226baf806211fe55587b63d5e4c88a64e37ac60e0ae9e2e3d83435165cda3635","slot":null},{"block":null,"method":"eth_call","params":["0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","name()"],"raw_result":"Some(\"Tower Semiconductor • Robinhood Token\")","result_hash":"076260fd233b0e0bb9f858ee49dccc8de87806df91226ac498132e579da9da17","slot":null},{"block":null,"method":"eth_call","params":["0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","totalSupply()"],"raw_result":"Some(\"35034000000000000000\")","result_hash":"81e51e452794b24a346710c13f0dbddc2e65a9f021df9cad597fa7381262e681","slot":null},{"block":null,"method":"eth_call","params":["0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"robinhood","contract":"0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-21T11:40:19Z","name":"Tower Semiconductor","official_deployments":[{"address":"0x89776d4Cd68193597A2fC132cfaC1fDe36CCeA8a","network":"Robinhood Chain"}],"source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"TSEM"},"registry_hash":"93152e39c695658a34c9bda84906234fcad15c3b04c297499cf30850c38509bd","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x317a59ec57393dbda7bed86b27b768b1e97f132bd5ac883344611832ac42d895","ticker":"TSEM","verdict":{"Verified":{"issuer":"Robinhood","ticker":"TSEM"}},"version":1}
Signature
67nXNath81GKbBQtxttIRmwi9jdprVNiet98GXxP584luE/iwgcl3JmiXPBsJO28OwL6Phk3wpEOczVKXX3NAQ==
API call
GET /api/attest/4a78c86d4875b61c4e173c0e8854fb0854a425c0e15ce50fd5dc3f586f6fdca4
  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.