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Some symbols have extra identifiers

Question​

  • what does "5656B6" mean? "OKEX_FTS_ETH_USD_190927_5656B6"

Answer​

This behavior is documented here: https://docs.coinapi.io/market-data/rest-api/metadata/list-all-symbols#symbol-identifier in the 

In the unlikely event when the “symbolid” for more than one market is the same. We will append the additional term (prefixed with the “”) at the end of the duplicated identifiers to differentiate them.

This happened for OKEX as they deprecated the API to which we were connected, because of that we were forced to switch to another API version. 

The differences between API's were significant and we needed to list the same markets from the new API under different series to give our customers a possibility to differentiate them.