A BTC chain's bech32 prefix on this stage, else null.
chn_…, e.g. "chn_solana". Self-custody WALLET payment instruments store
this in their provider column to reference the settling chain.
Canonical lowercase chain id (e.g. "solana", "avalanche-c-chain").
The chain's logo on static.cfx.to, chain-logos/<key>; every chain has one.
Display label (e.g. "Solana").
The code Nominis screens this chain's wallets as, null where it has none.
Execution runtime, or null for chains we don't classify yet.
Service-layer projection of an ACTIVE
b2b.chainrow.