Veterans of the UK pensions scene often describe a former world in which pensions were organised on a best efforts basis. They tend to lament its passing and view the current situation, in which pensions promises are either hard and immutable, as is the case with UK defined benefit (DB) schemes, or non-existent, as is the case with defined contribution (DC) schemes, unfavourably. However, in recent years, there has been an aspiration to allow greater flexibility and innovation in pension provision, than is allowed by these two extremes. Our client, a technology foundation with a keen interest in the future state, asked us to prepare a report which explained collective defined contribution (CDC) pensions, a new integrated system of pension accumulation and decumulation, which brings with it some new technological challenges. Having appointed a renowned pensions expert and SMEs at two universities, we concluded that there is a need for an integrated administration and management system, as some aspects of a CDC scheme are rooted in practices arising in the DB world and some in DC, but there are also some which are entirely new. The use of smart ledger technology is a natural solution to many of the challenges a CDC structure poses for pensions governance and administration. The full report Smart Ledgers & Collective Defined Contribution Pensions is in the public domain.