My person just came across an answer by Upasak Suminda Sirinath S. Dharmasena, mentioning:
Also there is a concept of Pin Potha, which is a journal of all good deeds done.
It is an age old custom of the Sri Lankan Buddhists to maintain a record of One's meritorious activities. This record is named PIN POTHA or Merit Book.
Since such is not only a perfect daily reflection means, fitting in the praised Anussatis: Recollection of one's own virtues (silanussati), Recollection of one's own generosity (caganussati), Recollection of the own qualities equal the devas (devatanussati), but also as telling, reminding very sick and dying people on their good deeds as support, my person wonders whether this custom is still alive.
Is such, keeping records of ones merits done, still practiced in Sri Lanka?
And, since it can be used perfect also for the practice of sharing merits and the practice of rejoicing in merits, my person wonders if there are ideas how to make the basic practices more virtual, vital, knowing that modern people are hardly to motivate toward the basic practices. They might possible needs such as a "reputation system", possible implemented in other daily used software or online services.
(Note that this is not given for use for trade, exchange, stacks or entertainment but for encouragement toward release and benefical undertakings toward such)