Polkadot

DOT Launched 2020

GRANDPA + BABE

34/100
ProtoLedger Index
Polkadot
Privacy Post-Quantum Identity

Polkadot combines BABE block production with GRANDPA finality for deterministic BFT finality and has mature on-chain governance (OpenGov). Its shared security model is technically sophisticated. Weaknesses: no privacy, no post-quantum security, no MEV protection.

Principle Breakdown

P1 — Trustlessness 6/10
GRANDPA BFT provides deterministic finality. Web3 Foundation retains some social governance influence.
P2 — Decentralisation 5/10
Nominated PoS with 297 active validators. Moderate decentralisation.
P3 — Post-Quantum Security 0/10
ECDSA and ed25519. No PQC roadmap.
P4 — Privacy by Default 0/10
No transaction privacy.
P5 — Deterministic Finality 7/10
GRANDPA achieves deterministic finality within ~12-60 seconds depending on network conditions.
P6 — Energy Proportionality 7/10
PoS — energy efficient.
P7 — Formal Verifiability 3/10
Web3 Foundation has produced academic papers on GRANDPA and BABE. Partial formal treatment.
P8 — On-Chain Governance 5/10
OpenGov is one of the most sophisticated on-chain governance systems in production. Multiple tracks, referenda, fellowship.
P9 — MEV Resistance 1/10
No structural MEV protection.
P10 — Sybil-Resistant Identity 0/10
No identity system.
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