GrahamBell rethinks traditional Proof-of-Work. Each node mines at exactly 1 hash per second & parallel mining provides no advantage, making ASIC, GPU & CPU optimisation ineffective. The goal is to remove centralisation from blockchain by making mining fair, affordable, & widely adopted. Mining is linked to real usage: blocks are mined during audio/video calls & users earn both mining rewards & per-second active call-time incentives (reverse billing). Telecom is open-source to promote DePIN.