H o f t t o a v o i d d o u b l e s p e n d i n g ?
Pro ble
O r d e r p r o b e l m
W e c a n n o t d e p e n d o n t i m e a s it i s e a s i l y
D o u b e s l p e n d f r a u d
I n v a l i d a t e d b y s o m e n o d e s .
H o f t t o a g r e e o n a n o r d e r ?
B l o c k c h a i n .
T r a n s a c t i o n c h a i n
Bl oc
A n s f t e r t o a s p e c i f i c p r o b e l m
F i r s t p e r s o n t o f i n d a s o l u t i o n ftill b r o a d c a s t t h e b l o c k t o t h e n e t f t o r k
S e v e r a l p o s s i b l e b r a n c h e s
Y o u n e e d c p u p o f t e r t o h a v e y o u r b l o c k b r o a d c a s t e d
Y o u a l f t a y s s f t i t c h e d t o t h e l o n g u e s t b r a n c h .
H a l f o f n o d e s m u s t b e h o n n e s t .
I h a v e c o n s t r u c t e d t h i s p r e s e n t a t i o n b a s e d o n : · Bitcoin under the hood · Mastering Bitcoin · Original paper · Coursera Icons made by Freepik from Flatjcon is licensed by Creatjve Commons BY 3.0
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