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Show HN: Phonchain – A Mobile-Native Blockchain Secured by Smartphones (Pop-S4)

1•PHONCOIN•1h ago
Phonchain is a mobile-native blockchain secured by real smartphones via a consensus mechanism called Proof-of-Phone Secure (PoP-S4).

Instead of relying on hashpower or stake, Phonchain uses real device participation as the primary source of security, with up to 30,000 independent mobile participants per block.

The network is currently live with: - Public explorer - Gateway/Core node implementation - Bootstrap/seed endpoints - Android wallet under Play Store review

Canonical network anchors: https://github.com/Phoncoin/phoncoin

Reference node software: https://github.com/Phoncoin/phonchain-node

Network explorer: https://explorer.phonchain.org/explorer

Technical feedback is welcome.

Comments

PHONCOIN•1h ago
Hi HN — creator of Phonchain here.

Phonchain is an experimental mobile-native L1 secured by real smartphones instead of hashpower or stake.

Each participant contributes periodic device-signed heartbeats (PoP-Secure S4), aggregated into blocks with a fixed target time (5 min) and Bitcoin-like supply schedule (21M cap).

The goal is to explore whether large-scale phone participation (potentially tens of thousands per block) can provide Sybil-resistant security without specialized hardware.

Reference implementation and bootstrap endpoints are public if anyone wants to run a gateway or core node.

Happy to answer technical questions.

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