here is one of my tx
what i want to know is please suggest some ways to invest my bitcoin at zero risk to earn some profit.Even 0.8% to 1% profit per month is good for me but it should be risk free.i don't mind the profit percentage but risk should not be there.if you have some suggestions please post that too,if i should keep holding for more years and if yes how long should i hold?
You want to earn more? Well, do what you did in the past! Just hold it. Eventually the price might rise more. Also, there is NO zero risk in any kind of investment whatsoever. If there was zero risk then everyone would just dive in to bitcoin and be rich in the future.
P.S. Stay away from cloud mining and investment sites