neutron-1
The neutron-1
chain will be launched as a consumer chain with Cosmos Hub network as provider chain.
Parameters
Below are the neutron-1
chain parameters:
Name | Value |
---|---|
chain-id | neutron-1 |
denom | untrn |
minimum-gas-prices | 0.01untrn |
timeout_commit | 1s |
genesis_time | 2023-05-10T15:00:00.000000Z |
The minimum-gas-prices
parameter must be set to 0.01untrn
. At chain launch (and until the end of the Token Generation Event) the only address that will have untrn
s will be the initial Hermes relayer. This relayer will be configured to only process Transfer
messages between Neutron and Cosmos Hub. As soon as the chain starts, some uatoms
will be transferred from Cosmos Hub to Neutron and the bridged ATOM denom will be communicated to the validators. After that, the validators will be able to set the minimum-gas-prices
in bridged ATOMs.
Binary
The release binary information is provided below:
Item | Description |
---|---|
GitHub repo | neutron-org/neutron |
Release | v1.0.1 |
Reference binary | neutrond-linux-amd64 |
Checksum (sha256) | b628d3eb1e0e12617b2c905f07dc39bd91d5dd3bd284a2a51d47c04cc3aa2e6d |
The
neutrond-linux-amd64
binary is only provided to verify the SHA256. It was built with Interchain Security release v1.2.0-multiden. You can generate the binary following the build instructions in the neutron-org/neutron repo.
The Cosmos Hub was recently upgraded to v9.1.0, which bumps ICS to v1.1.0-multiden. This version introduces two new parameters to prevent Replicated Security’s logic for handling rewards to be abused as a DOS vector.
This required a release of a new version of Neutron, v1.0.1
, which must be used for the mainnet launch. The only difference between v1.0.0-rc1
, which was used in the proposal, and v1.0.1
is the upgrade of Interchain Security to the latest release, v1.2.0-multiden
, which is compatible with the new parameters.
You can check the difference here.
v1.0.1
during the mainnet launch. The instructions on how to build v1.0.1
can be found in the How to Join section.
Genesis
The final genesis.json
information is provided below:
Item | Description |
---|---|
Genesis | genesis.json |
Checksum (sha256) | 9496492c81b31befb59a4336d5ae4444c24b863721d21be143d7d4fdf8072c84 |
If you want to get a better idea of what was changed in the genesis since Proposal 792, please read the sections below.
ccvconsumer
section updates
Due to the upgrade of the Neutron's ICS dependency to v1.2.0-multiden, and due to using a version of ICS with soft opt-out, there is 3 parameters that were added to the ccvconsumer
section of the genesis:
{
"soft_opt_out_threshold": "0.05",
"reward_denoms": [
"untrn"
],
"provider_reward_denoms": [
"uatom"
]
}
rewards_denoms
: rewards denominations from the Consumer chain (e.g. uNTRN or IBC denoms used on the consumer chain);provider_rewards_denoms
: rewards denomination from the Provider chain (e.g. uATOM);soft_opt_out_threshold
: this parameter was set to0.05
to allow the smaller validators to opt out of validating Neutron without being slashed.
slashing
parameters
In the pre-genesis, we used incorrect slashing
parameters. Below you can see the slashing
parameters diff:
+ "signed_blocks_window": "140000",
+ "min_signed_per_window": "0.050000000000000000",
+ "slash_fraction_downtime": "0.000100000000000000"
- "signed_blocks_window": "100",
- "min_signed_per_window": "0.500000000000000000",
- "slash_fraction_downtime": "0.010000000000000000"
signed_blocks_window
was increased to approximately 4 days given a2.5s
block production time that we are expecting. This is done to give the validators more time to recover a failed node;min_signed_per_window
was adjusted to match the value used by he Cosmos Hub;slash_fraction_downtime
was adjusted to match the value used by he Cosmos Hub.
wasm
artifacts
Neutron genesis instantiates dozens of smart contracts that are used by the Neutron DAO and the Neutron Token Generation Event. Since the time when Proposal 792 was published, we fixed some bugs and introduced some improvements to our smart contracts.
We have a script that you can copy to an empty directory and run to get the final genesis. We provide this script for information purposes only, and we do not guarantee that it will work on your machine (although if you have a Mac and the Docker daemon is running, it should produce the final genesis.json
within approximately 30 minutes because it will build all the wasm
binaries).
Endpoints
Seed nodes:
24f609fb5946ca3a979f40b7f54132c00104433e@p2p-erheim.neutron-1.neutron.org:26656
20e1000e88125698264454a884812746c2eb4807@seeds.lavenderfive.com:19156
b1c6fa570a184c56d0d736d260b8065d887e717c@p2p-kralum.neutron-1.neutron.org:26656
Persistent nodes:
e5d2743d9a3de514e4f7b9461bf3f0c1500c58d9@neutron.peer.stakewith.us:39956
982f968cd6ac567fdddf2170f7da9725ba21693d@51.210.209.49:15600
8e2af33b3fc9fee81dda7d351a65d93e8ac97409@65.108.71.163:2480
b119a600d082963d27a9ba9cd762c7c83f00e7d1@81.196.190.108:10083
9cede4e9f58fc3dfc80ad643c0e1f1cbab26b8ba@138.201.135.251:26656
2ee64f9f128e8a9f15f47a8f8d0e9cde7351fd17@46.101.193.151:26656
Also you can use this addrbook.json to bootstrap your nodes.
The following state sync node serve snapshots every 2000 blocks:
http://rpc-kralum.neutron-1.neutron.org:26657
How to Join
Hardware Requirements
- 4 Cores
- 32 GB RAM
- 2x512 GB SSD
Software Versions
Name | Version |
---|---|
Neutron | v1.0.1 |
Go | >1.20 |
Node manual installation
Build and install the Neutron binary.
$ git clone -b v1.0.1 https://github.com/neutron-org/neutron.git
$ cd neutron
$ make install
After installation, please check installed version by running:
$ neutrond version --long
name: neutron
server_name: neutrond
version: 1.0.1
commit: c236f1045f866c341ec26f5c409c04d201a19cde
You can also download binary directly from our official release.