Coin Metadata can not be retrieved

Question from TG:

Sui Testnet RPC cannot fetch coin metedata?

curl --location '[](' \ --header 'Content-Type: application/json' \ --data '{ "jsonrpc": "2.0", "id": 1, "method": "suix_getCoinMetadata", "params": [ "0xaf9ef585e2efd13321d0a2181e1c0715f9ba28ed052055d33a8b164f6c146a56::tusdt::TUSDT" ] }' returns "jsonrpc": "2.0", "result": null, "id": 1 }

The coin metadata creation is about a year old for that specific coin. The public RPCs don’t hold historical data that old. You would need to use an archival node or indexer for this request.
Relevant topic that provides resources on how you could set up one