RDF* in CBOR?

We are working a new specification for a binary format using IETF CBOR called "Gordian Envelopes". We are planning to submit this spec for Gordian Envelopes that leverages deterministic CBOR as an IETF Internet-Draft by end of the week:

ABSTRACT: The envelope protocol specifies a format for hierarchical binary data built on CBOR. Envelopes are designed with "smart documents" in mind, and have a number of unique features including easy representation of semantic structures like triples, built-in normalization, a built-in Merkle-like digest tree, and the ability for the holder of a document to selectively encrypt or elide specific parts of a document without invalidating the digest tree or cryptographic signatures that rely on it

https://blockchaincommons.github.io/WIPs-IETF-draft-envelope/draft-mcnally-envelope.html

In particular for this group, it supports triples where both the predicates and objects can be fully nested, i.e. "envelopes in envelopes". Part of the goal for this was to support annotation to allow for semantic clarity of both.

As I understand it, this approach comes closest to RDF* in approach, as it is more that a LPG (labeled property graph). Gordian Envelopes are, however, ONLY a data format, it does not specify or require semantic data.

We have a high-level overview of Gordian Envelops at:

https://www.blockchaincommons.com/introduction/Envelope-Intro/

A more engineering-level introduction at:

https://github.com/BlockchainCommons/Gordian/blob/master/Docs/Envelope-Tech-Intro.md

We have a video playlist starting with a 10m high-level introduction:

https://www.youtube.com/playlist?list=PLCkrqxOY1FbooYwJ7ZhpJ_QQk8Az1aCnG

We have a reference CLI implementation (written in Swift) available now, and some of our patrons have begun porting libraries to more languages like Kotlin, Typescript, Python, and Blockchain Commons is also committed to porting to Rust as funding allows. Let us know your needs!

For those of you who don't like videos, we have an annotated introduction to our CLI reference implementation that really demonstrates of the power of CBOR with Gordian Envelopes:

https://github.com/BlockchainCommons/envelope-cli-swift/blob/master/Transcripts/1-OVERVIEW-TRANSCRIPT.md

I'm seeking someone with a greater familiarity with RDF* architectures to identify if Gordian Envelopes might be useful to this community.

cc/ @wolfmcnally @selfissued @drummondreed

Start with the linked Gordian Envelopes IETF draft and Envelope-Tech-Intro.md, then compare their nested triple model with RDF* architectures. Done would be a documented assessment of whether Gordian Envelopes is useful to the JSON-LD/RDF* community, including any relevant compatibility or distinction.