# September 2025

2025-09-26

### Mapping Update

We've identified some mapping discrepancies around instruments with the asset code NEIRO. This appears to originate from different exchanges using this same code to refer to at least 3 distinct assets. 

The mapping in our reference data will be updated as outlined below: 

`NEIROCTO` : First NEIRO on ETH\
`1NEIRO` : NEIRO ETH \
`NEIRO` : NEIRO

2025-09-23

### Mapping Update

* Instruments listed below are update to use the base asset code `ONOMY`
  * CoinEx spot `nom-btc` becomes `onomy-btc`          
  * Bitfinex spot `nom-usd` becomes `onomy-usd` & `nom-usdt` becomes          
  * KuCoin spot `nom-usdt`
  * MEXC spot `nom-usdt`