collections:
- label: Proof of Work JPGs
  data: powjpgs.yml
  image: https://raw.githubusercontent.com/sigmagallery/powjpgs/main/avatar.png
  description: |
    Each NFT from this collection has:
      [1] hexspeak image SHA-256 hash (R8 register),
      [2] hexspeak image IPFS CID v0 (R9 register - link to the artwork),
      [3] hexspeak token Id,
      [4] hexspeak minting transaction Id,
      [*] royalty by EIP-0024 V1 artwork standard.
    All these four hashes are mined on specially designed miners.