BoundLayerable

BoundLayerable is a set of smart contracts for minting and then composing layerable NFTs on-chain.

The BoundLayerable flow:

• A user mints a set of N "layers" efficiently using ERC721A
  • The first is a "base" or "bindable" layer
• Layers are revealed on-chain
• Users can burn a layer to "bind" it to their base layer
• Users can update the base layer's metadata on-chain to show/hide and reorder layers

Technical specs

• Secure on-chain randomness using ChainLink VRF
• 8 types of layers
  • Up to 32 unique layers per "type" elements, except the 8th type, which supports 31 unique layers
  • 255 total unique layers
  • 16-bit granularity (~0.0015%) for trait rarity
• Up to 32 "Active" layers at once
• Traits and metadata stored on-chain
• Updateable metadata contract