QED
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QED certificate

QED record 3e210e8d2ef6 from . View the live pool page.

Verified · Robinhood DDOG

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

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

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
DDOG / USDG · Robinhood Chain
Pool address
0x977c78c96cd9b306d87c235dee5a69ccab913b0f775575627e709643ad416598
Issuer match
Robinhood · DDOG · View DDOG contracts
Checked
Valid until
Serial
3e210e8d2ef6
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.

n/a 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":92065394,"chain":"robinhood","checked_at":"2026-10-18T20:49:31Z","dev":false,"expires_at":"2026-10-19T20:49:31Z","issuer":"Robinhood","pool":{"base":{"address":"0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","balance":"1453462429581413521396","decimals":18,"symbol":"DDOG"},"chain":"robinhood","dex":"uniswap-v4","pool":"0x977c78c96cd9b306d87c235dee5a69ccab913b0f775575627e709643ad416598","quote":{"address":"0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168","balance":"357774261240","decimals":6,"symbol":"USDG"}},"quote_share_of_supply":null,"reads":[{"block":null,"method":"eth_call","params":["0x58daec3116aae6d93017baaea7749052e8a04fa7","poolKeys","0x977c78c96cd9b306d87c235dee5a69ccab913b0f775575627e"],"raw_result":"Object {\"currency0\": String(\"0x27c99fbde9d0d2aa4f4bfb4943f237843ddf6958\"), \"currency1\": String(\"0x5fc5360d0400a0fd4f2af552add042d716f1d168\"), \"fee\": String(\"10000\"), \"hooks\": String(\"0x0000000000000000000000000000000000000000\"), \"tickSpacing\": String(\"100\")}","result_hash":"7cd1f4f76d74bd13541e660cb1b070e1ef7f6af6adbde0f53346f02f9446b636","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getSlot0","0x977c78c96cd9b306d87c235dee5a69ccab913b0f775575627e709643ad416598"],"raw_result":"true","result_hash":"18d10c7d2b4b04aaf04254d1ae5d655a5dc0407cbcdd5a8c3986e985370f36ee","slot":null},{"block":null,"method":"eth_call","params":["0xf3334192d15450cdd385c8b70e03f9a6bd9e673b","getLiquidity","0x977c78c96cd9b306d87c235dee5a69ccab913b0f775575627e709643ad416598"],"raw_result":"22803759492339122","result_hash":"d88a955ba45013dd2a1d602ee0369e531ae3070a9ba5bb657a68bd3e577b0c4e","slot":null},{"block":null,"method":"eth_call","params":["0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","symbol()"],"raw_result":"Some(\"DDOG\")","result_hash":"dfe906285d415241dcf1d777bc35e318c13fe631e717037e72915fff9f40bd50","slot":null},{"block":null,"method":"eth_call","params":["0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","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":92065394,"method":"eth_blockNumber","params":[],"result_hash":"421eb08492597e3f8aaf2f33a5a87c04237a066ead13cc695e5880bf5078e870","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(\"695806034790491\")","result_hash":"21a27cf72b5dd60088135211f2c56057779d2f5e723b98f1c89b7732b57a27e1","slot":null},{"block":null,"method":"eth_call","params":["0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","symbol()"],"raw_result":"Some(\"DDOG\")","result_hash":"dfe906285d415241dcf1d777bc35e318c13fe631e717037e72915fff9f40bd50","slot":null},{"block":null,"method":"eth_call","params":["0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","name()"],"raw_result":"Some(\"Datadog • Robinhood Token\")","result_hash":"c193ab9a3e53f76977d0f30dbd6779eaf6ba588e8349e0b6c9a9c1838825c1a8","slot":null},{"block":null,"method":"eth_call","params":["0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","decimals()"],"raw_result":"Some(18)","result_hash":"c14f173ff30df32f36fac2ea29d9a20482082428fd32b58be5433d310884f764","slot":null},{"block":null,"method":"eth_call","params":["0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","totalSupply()"],"raw_result":"Some(\"485751800000000000000\")","result_hash":"40d1db9e4c99a0f8fe4d0de4746a30baf379ad467ab7dd2d111f15ab647089de","slot":null},{"block":null,"method":"eth_call","params":["0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","uiMultiplier()"],"raw_result":"1000000000000000000","result_hash":"46754a2491051f216577f1b9f19516f9be1a28c62f023dcbabd8c5317cdefe4b","slot":null},{"block":null,"method":"eth_getCode","params":["0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null},{"block":null,"method":"eth_getCode","params":["0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","latest"],"result_hash":"e023f4a2e14683cf62969bf3dc7d7821b1e293e30ebe17f3bc5fd0b223173f25","slot":null}],"registry_entry":{"chain":"robinhood","contract":"0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","decimals":18,"issuer":"Robinhood","last_checked":"2026-10-18T20:40:19Z","name":"Datadog","official_deployments":[{"address":"0x27c99fBde9D0d2AA4f4Bfb4943f237843DdF6958","network":"Robinhood Chain"}],"source":"robinhood-registry","source_url":"https://api.robinhood.com/rhj/assets","ticker":"DDOG"},"registry_hash":"232d0be2eda56472709e0cf69b424df4c8dd39a27138a34cf3d57c8f428c0f9e","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":null,"subject":"0x977c78c96cd9b306d87c235dee5a69ccab913b0f775575627e709643ad416598","ticker":"DDOG","verdict":{"Verified":{"issuer":"Robinhood","ticker":"DDOG"}},"version":1}
Signature
JIMKU3hj273swr7ohC2zOix/fNEZCaUETsxcVliU3Cm3uJZZ6e2mlUzg3ERGKRCZwGy8D9rGvrecRzYIMSOmDA==
API call
GET /api/attest/3e210e8d2ef69c66bfe58ae7f17d80d58be07ca05417950decb861e5079a81cc
  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.