The IPLD Data Model

Overview

The IPLD Data Model is a central part of IPLD. It which describes what data is representable in IPLD -- for example, booleans, integers, textual strings, maps and lists, etc.

The Data Model describes these data ranges in the abstract.

The Data Model is roughly similar to what you know and expect from JSON -- but we add a few more critical kinds of data: bytes, and links (which are content-addressable, hash-based links). See the kinds page for more details on these.

Having this understanding of a Data Model lets us do things like specify pathing and traversals over any data which conforms it, which lets us write "generic" code to examine and manipulate data in the Data Model.

Then other parts of IPLD specify in more detail how to move data in and out:

Motivation

There is not one block format but many serial formats widely used today in content addressed data structures. We assume that we'll see more of these block formats in the future and not fewer. It is quite clear then that a reasonable and more future-proof approach to using these data structures is to be serial format agnostic.

The data model defines a common representation of basic types that are easily representable by common programming languages and found in the most common and successful serialization formats. By aiming to select and standardize around these most common key elements, we hope to be able to build the smoothest bridges to the largest amount of existing serial data, and also reach for low friction for libraries, which should be able to be built using familiar native types in a programmer's preferred language.

Pages within Data Model

Nodes - no synopsys available
Kinds - no synopsys available
Pathing - no synopsys available
Traversal - no synopsys available