Base · Beryl upgrade · B20 native token standard

B20 Speedrun

A guided, gamified walkthrough of every feature in Base's native token standard. Deploy two B20 tokens, exercise all 40 capabilities, and renounce admin to seal your run as immutable evidence on Base mainnet.

Level 1

Factory & Roles

9 steps

Deploy both tokens, grant all 7 roles including OPERATOR_ROLE.

Level 2

Policies

9 steps

Create blocklist & allowlist, bind all 4 policy scopes, two-step admin transfer.

Level 3

Movement

11 steps

Mint, burn, transfer (with memos), burnBlocked, supply cap, ERC-2612 permit.

Level 4

Asset Specials

6 steps

Multiplier scaling, announce+batchMint, extra metadata, name/symbol/contractURI updates.

👾 Boss

Pause & Renounce

5 steps

Pause all 3 features (with revert proof), unpause, then renounceLastAdmin forever.

Total

40 steps

~$3 at typical Base fees

Every B20 capability exercised and recorded as immutable onchain evidence.

Leaderboard

🏁

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