Into:Coldint / bootstrap
From training subnet to subnet incubator
As of · Jun 20, 08:12 UTC
Coldint registered as a subnet for open, collaborative AI model training. Its team now says that idea is behind them, and the SN29 slot is being repurposed as a place for other people to test their subnet ideas.
What is this
Coldint (Subnet 29) launched in 2024 as a Bittensor subnet for collaborative, distributed AI model training, where miners competed to improve a shared model and could also earn for publishing useful code and fixes. In a June 2026 post in its Bittensor Discord, where the channel has been renamed "bootstrap", the team said the original Coldint idea is behind them and described a new direction for the slot.
The new plan, as the team describes it, is to run SN29 as a host for other people's early-stage subnet ideas. An aspiring subnet owner would run their idea as a "subsubnet" on the SN29 slot, and a fraction of the slot's mining reward would be shared among the miners working that idea. Everything in this section about the new direction comes from that single Discord announcement; it is not yet reflected in the subnet's on-chain identity or its public code.
The simple version: Think of it like a sandbox or incubator for Bittensor subnets. Instead of paying to register your own slot to test an idea, you run it inside someone else's slot first, with real miners attached.
Centralized equivalent: The closest analogy is a startup accelerator or a shared testing sandbox. There is no direct decentralized equivalent that we are aware of.
How it works (as described by the team, and not yet built):
- Aspiring subsubnet owners bring a subnet idea and validator code, and run it on the SN29 slot rather than registering a new slot of their own.
Other research from the same neighborhood of the network.
