PIN POTHA (puñña potha) or Merit Book, costom still alive? How to keep it up? 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. 


And 


  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.

[Some "experiments" had been done to encourage the nearly death basic section, such as Anumodana or mail-list, next to a section in use, to get some ideas.]

(Note that this is not given for use for trade, exchange, stacks or entertainment but for encouragement toward release and benefical undertakings toward such)
As a Sri Lankan, I've heard these in our grand parent times (within last 20-30 years back). With the current lifestyle, everyone has started looking for happiness in outer world, most of the people have forgotten these kind of customs / traditions. This doesn't imply that Pin Potha is no longer active in Sri Lanka, but I should say its very hard to find now a days.

As I've heard the main purpose of this book is, when the owner of the book is about to die and while laying on the bed (Here it's talking about natural death with aging, because that's how the most of the people died in back old days, no sudden heart attacks) someone else starts reading the book to the owner. The concept behind this is, to make his next life a better one ( next birth in human world or heaven not the hell) 

How that happens is the bhava in Pratītyasamutpāda is caused by the previous Nidanas. So if he can have good Saṅkhāra (mental fabrication) based on what he hears (from Pin Potha) at the last fractions of seconds, it will results to create a good Bhava. This is the concept behind this action as I've understood.