https://www.irs.gov/businesses/small-businesses-self-employe...
"Digital assets are broadly defined as any digital representation of value which is recorded on a cryptographically secured distributed ledger or any similar technology as specified by the Secretary.
"Digital assets include (but are not limited to):
- Convertible virtual currency and cryptocurrency
- Stablecoins
- Non-fungible tokens (NFTs)"
I would have thought that "digital assets" existed before there was any "cryptographically secured distributed ledger or any similar technology."
For example, a record label might own the original recordings of a 1995 song as a set of files. Legally, they own the copyright in the recording, but the copyright alone isn't enough because the copyright loses its market value if the associated files get destroyed. In other words, the files are 1) digital and 2) assets, because if someone bought the recording, they would reasonably expect to get both the copyright and the files.