Macabris

Macabris is the first ever crypto Tontine NFT: group annuity with a mortality lottery. Owner of a token receives increasing monthly payout as long as the underlying celebrity is alive. Tontine is an investment plan for raising capital, devised in the 17th century and relatively widespread in the 18th and 19th centuries. Tontine enables subscribers to share the risk of living a long life by combining features of a group annuity with a kind of mortality lottery. Each subscriber pays an agreed sum into the fund and thereafter receives a periodical payout. As members die, their payout entitlements devolve to the other participants, and so the value of each continuing payout increases. On the death of the last member, the scheme is wound up.

Roughly every month a share of distribution pool will be paid out token holders. The pool is distributed in 600 installments. Every 30 days one installment will be paid out automatically and distributed to alive token holders.  Example: let’s say there are 100 ETH in the pool and 100 alive celebrity tokens. Monthly payout is 1/600 * 100 = 0.1667 ETH, distributed per 100 alive tokens. As such, each token automatically receives 0.1667 ETH / 100 = 0.001667 ETH per token. Suppose, a month has passed, and 5 celebrities met their ends. There are total 95 alive tokens. Monthly total payout is the same – 0.1667 ETH, however it is distributed among the living tokens. Each alive token now automatically receives 0.1667 / 95 = 0.00175 ETH. Eventually, as more and more celebrities perish as the times goes by, the last remaining alive token will collect entire pool payout every month.