It's a bit unfortunate that [1] doesn't seem to mention Fleece[2], since Fleece is an already existing, solid format with very similar properties (JSON-compatible data format, uses offsets for sharing, allows for cheap updates, and uses binary search on arrays to achieve O(ln n) lookups in large tables or arrays, etc.)

[1]: https://lite3.io/design_and_limitations.html#autotoc_md31 [2]: https://github.com/couchbase/fleece/