Sentinel "before any block". Used when a subscription is seeded from a snapshot before any real tip has been observed: the synthetic UtxoEvent.Created events carry this rather than a faked point, and subscribers can recognise it with point == ChainPoint.origin.
Sentinel "before any block". Used when a subscription is seeded from a snapshot before any real tip has been observed: the synthetic UtxoEvent.Created events carry this rather than a faked point, and subscribers can recognise it with point == ChainPoint.origin.