PretextCurrently IPFS object are static, immutable and unchangeable without changing the CID (content identifier). CID otherwise known as a multihash is a unique content identifier to a particular set of data. Typically most IPFS file hashes start with Qm. This static identifier is very useful for preserving a particular record, such as a transaction ID, a JavaScript library, images (I generally assume they won't change any time soon). It being static makes it also secure when being used to prove the validity of the data itself. However, this presents an issue when file mutability is necessary for an application, for example: collaborative text editing, editable notes, collaborative development (git/GitHub), an updatable Dropbox etc.