BLOCKWATCH (#051-#139)

Features
3 faces: BTC timechain, Moscow Time, BTC Public Key QR code
ASIC ribbon cable
Hand engraved unit number and blockheight when assembled
In-house mint encryption system enables us to confirm each BLOCKWATCH’s authenticity
 
System details
ESP32-PICO-D4 core
E-Paper, E-Ink Display with 200x200 pixel resolution
 
#001-#015 = Yellow band
#016-#025 = Retro band 
#026-#154 = Grey band
 
Designed, assembled, and coded in the USA
MIT License‒ open source hardware/software