CIP68-Draft review

[szist]

    The current CIP68 is in DRAFT

https://cips.cardano.org/cips/cip68/
There are several issues with the draft:

• 1 token per UTxO - extremely wasteful for large series
• NFTs sent to an unspendable address, will cause the minAda to be lost forever
• the format still assumes generic metadata, which won't help smartcontracts
• the standard does not specify if the metadata should be inlined or not
• since the reference carries the metadata and the tokens can be minted separately
  the actual expected format is decided afterwards, when looking up. Which is annoying
  for an indexer

Proposed additions:

• extend metadata to include multiple tokens as a list or assetclass as key
• require inlined metadata
  (ensures that it needs to be provided, but adds extra min ada fee)
• NFT standard should not require locked ADA (metadata can be provided in redeemer/last spent)
• Potentially make a fix set of fields (required and optional) with potential generic addition,
  so that the metadata can be easily used from smart contracts

Originally posted by @szist in #9 (comment)

[szist]

Discussion moved here: cardano-foundation/CIPs#377