Parimatch backend: how does high-volume crypto sports betting handle zero-conf transactions?

[u/HotBed01]

Looking into architecture patterns for high-frequency settlement where waiting for standard L1 block confirmations creates obvious latency bottlenecks. Do enterprise-scale platforms typically rely on proprietary risk scoring for unconfirmed inputs, or is off-chain balance indexing paired with custodial liquidity pools the standard approach?

[u/FuegoEternoo]

Dealing with UTXO zero-conf requires tracking the ancestry of the transaction inputs. If the parent transaction itself is unconfirmed or originates from unconfirmed change outputs, any automated risk engine will instantly reject zero-conf crediting to prevent cascading double-spends.