What is altergift?

Excuse me, could you please clarify what you mean by "altergift"? I'm not familiar with this term in the context of cryptocurrency or finance. Could it be a misspelling or a term used in a specific niche that I'm not aware of? If you could provide some additional context or explanation, that would be greatly appreciated. Perhaps it's related to a new concept in blockchain technology or a unique feature of a particular cryptocurrency? I'm eager to learn more and understand your question better.