Network
Launch Date
Consensus
Note
Sepolia
Oct 2021
PoW
Like-for-like representation of Ethereum
Görli
Jan 2019
PoA
Proof-of-Authority
Kiln
Mar 2022
PoS
Post-Merge (for ETH2), shadow fork of the mainnet
Kintsugi
Dec 2021
PoS
DEPRECATED, use Kiln; post-Merge (for ETH2)
Ropsten
Nov 2016
PoW
DEPRECATED, use Sepolia; the Merge to happen on Jun 8, 2022
Rinkeby
Apr 2017
PoA
DEPRECATED, use Görli and Görli Faucet
Kovan
Mar 2017
PoA
DEPRECATED, use Sepolia or Görli
List of active and deprecated Ethereum testnets, including Kintsugi.
Features
Optimistic rollup 
ZK-rollup 
Proof
Uses fraud proofs to prove transaction validity. 
Uses validity (zero-knowledge) proofs to prove transaction validity. 
Capital efficiency
Requires waiting through a 1-week delay (dispute period) before withdrawing funds. 
Users can withdraw funds immediately because validity proofs provide incontrovertible evidence of the authenticity of off-chain transactions. 
Data compression
Publishes full transaction data as calldata to Ethereum Mainnet, which increases rollup costs. 
Doesn't need to publish transaction data on Ethereum because ZK-SNARKs and ZK-STARKs already guarantee the accuracy of the rollup state. 
EVM compatibility
Uses a simulation of the Ethereum Virtual Machine (EVM), which allows it to run arbitrary logic and support smart contracts. 
Doesn't widely support EVM computation, although a few EVM-compatible ZK-rollups have appeared. 
Rollup costs
Reduces costs since it publishes minimal data on Ethereum and doesn't have to post proofs for transactions, except in special circumstances. 
Faces higher overhead from costs involved in generating and verifying proofs for every transaction block. ZK proofs require specialized, expensive hardware to create and have high on-chain verification costs. 
Trust assumptions
Doesn't require a trusted setup. 
Requires a trusted setup to work. 
Liveness requirements
Verifiers are needed to keep tabs on the actual rollup state and the one referenced in the state root to detect fraud. 
Users don't need someone to watch the L2 chain to detect fraud. 
Security properties 
Relies on cryptoeconomic incentives to assure users of rollup security. 
Relies on cryptographic guarantees for security. 
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curl 
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--output 
C:\solana-install-tmp\solana-install-init.exe 
--create-dirs
Infra
ARBITRUM NODE OVERVIEW

Arbitrum Nodes: Everything You Need to Know (2023)

What Arbitrum Nodes Are How to Start Developing with an Arbitrum Node Provider
Last Updated:
October 19, 2022
Table of Contents
Table of Contents
Table of Contents

{{get-started-arbitrum}}

Arbitrum is a layer 2 scaling solution for Ethereum that aims to solve Ethereum's scalability challenges of low transaction throughput and high transaction fees using optimistic rollups to maintain Ethereum's layer one security.

To start building Arbitrum applications, developers will need to connect to an Arbitrum node provider or setup their own Arbitrum node. In this guide, we will explain how to use Alchemy's infinitely scalable Arbitrum RPC node services, and how to get started running your own Arbitrum full node.¬†‚Äć‚Äć

What is an Arbitrum node?

An Arbitrum node is a computer that serves as a point of connection within the Arbitrum blockchain, many of which are interdependent on one another. 

To have a better understanding of Arbitrum nodes, it is essential to understand what nodes are, their roles in propagating transactions, and how blocks are validated.

Transactions are submitted to a global pool of pending transactions, and broadcast to other nodes on the network before they are arranged into blocks. To ensure fairness, nodes in a network have to agree (i.e. reach consensus) on the transactions that were included in a block before that block of transactions is added to the network. Nodes help in the approval or rejection of block proposals, and also store the historical transaction data of the network. 

What is an Arbitrum node provider?

An Arbitrum node provider is a company that runs Arbitrum nodes, and enables both everyday users and developers to send and receive requests from the blockchain without having to set up and manage nodes on their own. 

An Arbitrum node provider would have set up and maintained one or more Arbitrum nodes but would open it up for everyone to utilize it by creating some APIs or RPC. Put in another form, an Arbitrum node provider is in the business of giving Arbitrum-node-as-a-service. 

Once the users get access to the Arbitrum API of an Alchemy node provider, they can interact with the Arbitrum blockchain in real-time. 

While there are quite a handful of Arbitrum node providers, Alchemy is the leading provider. Later on in this guide, we will go over how you can tap into the Alchemy Arbitrum node. 

What is the difference between running your own Arbitrum node and using an Arbitrum node provider?

Running your node requires you to install the requisite programs so your computer or device can be connected to Arbitrum mainnet and oversee the operating, while using a node provider manages the operations for you.

Thus, the main difference between running your own Arbitrum node and using an Arbitrum node provider is management in terms of setting the node up and maintaining it accordingly. 

When you take advantage of an Arbitrum node provider, you have pushed the responsibility to a third party. Selecting a reliable node provider can take a bit of initial effort but after that, you don’t need to bother about the hardware to maintain it.

What are the challenges of running your own Arbitrum node?

The challenges of running your own Arbitrum node include needing proper storage space, a large lead time and the bandwidth required to manage a full-time node.

However, if you’re thinking of spinning your own node, it might appear to be a good idea at first. And of course, your own node has its benefits. 

An in-house node means you are a direct stakeholder in maintaining the security and health of a particular chain. This, makes it tough for malicious actors to execute hacks on the chain. Secondly, you will have access to the state of the chain; the entire data of the network. 

However, the challenges of running your own node are not always discussed, and we shall address them here. 

1. Storage Space 

You need a large space on your computer before you can run a full node. While there is no specific space required to run an Arbitrum node, the range is always between 200 GB to 300 GB among all blockchain networks. 

2. Set-up Time 

When you attempt to run a full node, your computer will have to download the ledger of the blockchain right from the first block that was mined up to the one mined a second ago. This always takes time; it may be days, weeks, or a month at worst depending on the chain and some other relative factors. 

3. Node Management

Once you have eventually set up your full node, there is a need to manage it - and this is where the actual challenges lie. Running a full node is time-demanding, not only because you will have to be online for long hours, but you will also have to keep up with upgrading and debugging most of the time. 

Now, let's consider how you can connect to an Arbitrum node on Alchemy ‚ÄĒ the foremost node provider in Web3.¬†

How to Connect to an Arbitrum Node on Alchemy 

Here is a step-by-step guide on how you can connect to an Arbitrum node using Alchemy as the node provider so you can start developing on Arbitrum:

Step 1. Sign Up for Alchemy

The first step you need to take is to go to the Alchemy website to sign-up and fill in a few details. If you had already signed up before, simply log in.

signing up to alchemy and setting up arbitrum nodes
Alchemy sign up page

Step 2. Create a New Arbitrum App

Once you have logged in, go ahead to create an app on Alchemy. In this case, select the Arbitrum mainnet.

Alchemy's arbitrum node setup
Setting up an Arbitrum node on its mainnet

Step 3. Install the NPM package and Alchemy SDK

You will need the npm package moving forward if you do not have it already. Then, run this command to install the Alchemy SDK.


npm, install alchemy-SDK

Step 4. Connect and Make Node Requests to the Arbitrum Mainnet

Using Ether.js or Web.js, you will need to import the Alchemy SDK and make a node request. Paste this command to import the SDK:


import { Network, Alchemy } from 'alchemy-sdk';

Now, you should configure your object by inputting your Alchemy Arbitrum API key. To know your API key, go to your dashboard on Alchemy and click the view key on the app.

Alchemy API keys for Arbitrum project
Alchemy API keys for Arbitrum project

Run this command in your environment:



const settings = {
  apiKey: ''5k6uBQE1ezfYaSom0qUVKLf0RzczKrIw', 
  network: Network.ARB_MAINNET, 
};
const alchemy = new Alchemy(settings);

alchemy.core.getBlockNumber().then(console.log);

Step 5. Node Request Analytics and Report

You will be able to monitor whether or not your requests were successful and the speed of execution ‚ÄĒ everything will be displayed on your dashboard.

Live Arbitrum node via the Alchemy dashboard
Live Arbitrum node in the Alchemy dashboard

How to Set up Your Own Arbitrum Full Node

Perhaps you want to set up your own Arbitrum full node and run it, you can take the steps below.

Step 1. Get the Arbitrum Node Docker Image 

Before you can run an Arbitrum node, you need to get some dependencies and libraries which are contained in a docker image.

Step 2. Get An Ethereum Node RPC Endpoint 

There are two options for you to get this; either you use an Arbitrum RPC endpoint provider or you build your own Ethereum node ‚ÄĒ which is another process entirely.¬†

If you want to leverage an Arbitrum RPC node provider, you can use Alchemy. 



--l1.url=<insert your RPC URL here>

Step 3. Connect with the Arbitrum Mainnet 

Once you have your dependencies set, you can run this code to make a node request to the Arbitrum main network:



docker run --rm -it -v /some/local/dir/arbitrum-mainnet/:/home/user/.arbitrum/mainnet -p 0.0.0.0:8547:8547

At this point, don't be alarmed when you run these programs and they don't work on your computer. There is no standard way of running a full Arbitrum node at the moment. 

The Offchain Labs, the team behind Arbitrum, have not yet released official detailed documentation on how to run their nodes. 

Thus, your ability to successfully run the node depends on how compatible your device might be and how well you have mastered CLI. 

Get Your Arbitrum Nodes Up and Running Today!

Running an Arbitrum full node is a time-consuming and financially-demanding activity that has no direct impact on what you’re working on as a developer. You need to acquire a device with the proper hardware requirements, wait for the complete blockchain ledger to download and then manage it on a day-to-day basis. 

Most developers often choose to skip this tedious process and opt to enjoy the service of a node provider. Alchemy is the go-to node service provider that can help you set-up Arbitrum nodes within a few clicks! Get started with Alchemy today.

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Infra
ARBITRUM NODE OVERVIEW

Arbitrum Nodes: Everything You Need to Know (2023)

What Arbitrum Nodes Are How to Start Developing with an Arbitrum Node Provider
Last Updated:
October 19, 2022
Last Updated:
March 14, 2023
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{{get-started-arbitrum}}

Table of Contents

Arbitrum is a layer 2 scaling solution for Ethereum that aims to solve Ethereum's scalability challenges of low transaction throughput and high transaction fees using optimistic rollups to maintain Ethereum's layer one security.

To start building Arbitrum applications, developers will need to connect to an Arbitrum node provider or setup their own Arbitrum node. In this guide, we will explain how to use Alchemy's infinitely scalable Arbitrum RPC node services, and how to get started running your own Arbitrum full node.¬†‚Äć‚Äć

What is an Arbitrum node?

An Arbitrum node is a computer that serves as a point of connection within the Arbitrum blockchain, many of which are interdependent on one another. 

To have a better understanding of Arbitrum nodes, it is essential to understand what nodes are, their roles in propagating transactions, and how blocks are validated.

Transactions are submitted to a global pool of pending transactions, and broadcast to other nodes on the network before they are arranged into blocks. To ensure fairness, nodes in a network have to agree (i.e. reach consensus) on the transactions that were included in a block before that block of transactions is added to the network. Nodes help in the approval or rejection of block proposals, and also store the historical transaction data of the network. 

What is an Arbitrum node provider?

An Arbitrum node provider is a company that runs Arbitrum nodes, and enables both everyday users and developers to send and receive requests from the blockchain without having to set up and manage nodes on their own. 

An Arbitrum node provider would have set up and maintained one or more Arbitrum nodes but would open it up for everyone to utilize it by creating some APIs or RPC. Put in another form, an Arbitrum node provider is in the business of giving Arbitrum-node-as-a-service. 

Once the users get access to the Arbitrum API of an Alchemy node provider, they can interact with the Arbitrum blockchain in real-time. 

While there are quite a handful of Arbitrum node providers, Alchemy is the leading provider. Later on in this guide, we will go over how you can tap into the Alchemy Arbitrum node. 

What is the difference between running your own Arbitrum node and using an Arbitrum node provider?

Running your node requires you to install the requisite programs so your computer or device can be connected to Arbitrum mainnet and oversee the operating, while using a node provider manages the operations for you.

Thus, the main difference between running your own Arbitrum node and using an Arbitrum node provider is management in terms of setting the node up and maintaining it accordingly. 

When you take advantage of an Arbitrum node provider, you have pushed the responsibility to a third party. Selecting a reliable node provider can take a bit of initial effort but after that, you don’t need to bother about the hardware to maintain it.

What are the challenges of running your own Arbitrum node?

The challenges of running your own Arbitrum node include needing proper storage space, a large lead time and the bandwidth required to manage a full-time node.

However, if you’re thinking of spinning your own node, it might appear to be a good idea at first. And of course, your own node has its benefits. 

An in-house node means you are a direct stakeholder in maintaining the security and health of a particular chain. This, makes it tough for malicious actors to execute hacks on the chain. Secondly, you will have access to the state of the chain; the entire data of the network. 

However, the challenges of running your own node are not always discussed, and we shall address them here. 

1. Storage Space 

You need a large space on your computer before you can run a full node. While there is no specific space required to run an Arbitrum node, the range is always between 200 GB to 300 GB among all blockchain networks. 

2. Set-up Time 

When you attempt to run a full node, your computer will have to download the ledger of the blockchain right from the first block that was mined up to the one mined a second ago. This always takes time; it may be days, weeks, or a month at worst depending on the chain and some other relative factors. 

3. Node Management

Once you have eventually set up your full node, there is a need to manage it - and this is where the actual challenges lie. Running a full node is time-demanding, not only because you will have to be online for long hours, but you will also have to keep up with upgrading and debugging most of the time. 

Now, let's consider how you can connect to an Arbitrum node on Alchemy ‚ÄĒ the foremost node provider in Web3.¬†

How to Connect to an Arbitrum Node on Alchemy 

Here is a step-by-step guide on how you can connect to an Arbitrum node using Alchemy as the node provider so you can start developing on Arbitrum:

Step 1. Sign Up for Alchemy

The first step you need to take is to go to the Alchemy website to sign-up and fill in a few details. If you had already signed up before, simply log in.

signing up to alchemy and setting up arbitrum nodes
Alchemy sign up page

Step 2. Create a New Arbitrum App

Once you have logged in, go ahead to create an app on Alchemy. In this case, select the Arbitrum mainnet.

Alchemy's arbitrum node setup
Setting up an Arbitrum node on its mainnet

Step 3. Install the NPM package and Alchemy SDK

You will need the npm package moving forward if you do not have it already. Then, run this command to install the Alchemy SDK.


npm, install alchemy-SDK

Step 4. Connect and Make Node Requests to the Arbitrum Mainnet

Using Ether.js or Web.js, you will need to import the Alchemy SDK and make a node request. Paste this command to import the SDK:


import { Network, Alchemy } from 'alchemy-sdk';

Now, you should configure your object by inputting your Alchemy Arbitrum API key. To know your API key, go to your dashboard on Alchemy and click the view key on the app.

Alchemy API keys for Arbitrum project
Alchemy API keys for Arbitrum project

Run this command in your environment:



const settings = {
  apiKey: ''5k6uBQE1ezfYaSom0qUVKLf0RzczKrIw', 
  network: Network.ARB_MAINNET, 
};
const alchemy = new Alchemy(settings);

alchemy.core.getBlockNumber().then(console.log);

Step 5. Node Request Analytics and Report

You will be able to monitor whether or not your requests were successful and the speed of execution ‚ÄĒ everything will be displayed on your dashboard.

Live Arbitrum node via the Alchemy dashboard
Live Arbitrum node in the Alchemy dashboard

How to Set up Your Own Arbitrum Full Node

Perhaps you want to set up your own Arbitrum full node and run it, you can take the steps below.

Step 1. Get the Arbitrum Node Docker Image 

Before you can run an Arbitrum node, you need to get some dependencies and libraries which are contained in a docker image.

Step 2. Get An Ethereum Node RPC Endpoint 

There are two options for you to get this; either you use an Arbitrum RPC endpoint provider or you build your own Ethereum node ‚ÄĒ which is another process entirely.¬†

If you want to leverage an Arbitrum RPC node provider, you can use Alchemy. 



--l1.url=<insert your RPC URL here>

Step 3. Connect with the Arbitrum Mainnet 

Once you have your dependencies set, you can run this code to make a node request to the Arbitrum main network:



docker run --rm -it -v /some/local/dir/arbitrum-mainnet/:/home/user/.arbitrum/mainnet -p 0.0.0.0:8547:8547

At this point, don't be alarmed when you run these programs and they don't work on your computer. There is no standard way of running a full Arbitrum node at the moment. 

The Offchain Labs, the team behind Arbitrum, have not yet released official detailed documentation on how to run their nodes. 

Thus, your ability to successfully run the node depends on how compatible your device might be and how well you have mastered CLI. 

Get Your Arbitrum Nodes Up and Running Today!

Running an Arbitrum full node is a time-consuming and financially-demanding activity that has no direct impact on what you’re working on as a developer. You need to acquire a device with the proper hardware requirements, wait for the complete blockchain ledger to download and then manage it on a day-to-day basis. 

Most developers often choose to skip this tedious process and opt to enjoy the service of a node provider. Alchemy is the go-to node service provider that can help you set-up Arbitrum nodes within a few clicks! Get started with Alchemy today.

Arbitrum is a layer 2 scaling solution for Ethereum that aims to solve Ethereum's scalability challenges of low transaction throughput and high transaction fees using optimistic rollups to maintain Ethereum's layer one security.

To start building Arbitrum applications, developers will need to connect to an Arbitrum node provider or setup their own Arbitrum node. In this guide, we will explain how to use Alchemy's infinitely scalable Arbitrum RPC node services, and how to get started running your own Arbitrum full node.¬†‚Äć‚Äć

What is an Arbitrum node?

An Arbitrum node is a computer that serves as a point of connection within the Arbitrum blockchain, many of which are interdependent on one another. 

To have a better understanding of Arbitrum nodes, it is essential to understand what nodes are, their roles in propagating transactions, and how blocks are validated.

Transactions are submitted to a global pool of pending transactions, and broadcast to other nodes on the network before they are arranged into blocks. To ensure fairness, nodes in a network have to agree (i.e. reach consensus) on the transactions that were included in a block before that block of transactions is added to the network. Nodes help in the approval or rejection of block proposals, and also store the historical transaction data of the network. 

What is an Arbitrum node provider?

An Arbitrum node provider is a company that runs Arbitrum nodes, and enables both everyday users and developers to send and receive requests from the blockchain without having to set up and manage nodes on their own. 

An Arbitrum node provider would have set up and maintained one or more Arbitrum nodes but would open it up for everyone to utilize it by creating some APIs or RPC. Put in another form, an Arbitrum node provider is in the business of giving Arbitrum-node-as-a-service. 

Once the users get access to the Arbitrum API of an Alchemy node provider, they can interact with the Arbitrum blockchain in real-time. 

While there are quite a handful of Arbitrum node providers, Alchemy is the leading provider. Later on in this guide, we will go over how you can tap into the Alchemy Arbitrum node. 

What is the difference between running your own Arbitrum node and using an Arbitrum node provider?

Running your node requires you to install the requisite programs so your computer or device can be connected to Arbitrum mainnet and oversee the operating, while using a node provider manages the operations for you.

Thus, the main difference between running your own Arbitrum node and using an Arbitrum node provider is management in terms of setting the node up and maintaining it accordingly. 

When you take advantage of an Arbitrum node provider, you have pushed the responsibility to a third party. Selecting a reliable node provider can take a bit of initial effort but after that, you don’t need to bother about the hardware to maintain it.

What are the challenges of running your own Arbitrum node?

The challenges of running your own Arbitrum node include needing proper storage space, a large lead time and the bandwidth required to manage a full-time node.

However, if you’re thinking of spinning your own node, it might appear to be a good idea at first. And of course, your own node has its benefits. 

An in-house node means you are a direct stakeholder in maintaining the security and health of a particular chain. This, makes it tough for malicious actors to execute hacks on the chain. Secondly, you will have access to the state of the chain; the entire data of the network. 

However, the challenges of running your own node are not always discussed, and we shall address them here. 

1. Storage Space 

You need a large space on your computer before you can run a full node. While there is no specific space required to run an Arbitrum node, the range is always between 200 GB to 300 GB among all blockchain networks. 

2. Set-up Time 

When you attempt to run a full node, your computer will have to download the ledger of the blockchain right from the first block that was mined up to the one mined a second ago. This always takes time; it may be days, weeks, or a month at worst depending on the chain and some other relative factors. 

3. Node Management

Once you have eventually set up your full node, there is a need to manage it - and this is where the actual challenges lie. Running a full node is time-demanding, not only because you will have to be online for long hours, but you will also have to keep up with upgrading and debugging most of the time. 

Now, let's consider how you can connect to an Arbitrum node on Alchemy ‚ÄĒ the foremost node provider in Web3.¬†

How to Connect to an Arbitrum Node on Alchemy 

Here is a step-by-step guide on how you can connect to an Arbitrum node using Alchemy as the node provider so you can start developing on Arbitrum:

Step 1. Sign Up for Alchemy

The first step you need to take is to go to the Alchemy website to sign-up and fill in a few details. If you had already signed up before, simply log in.

signing up to alchemy and setting up arbitrum nodes
Alchemy sign up page

Step 2. Create a New Arbitrum App

Once you have logged in, go ahead to create an app on Alchemy. In this case, select the Arbitrum mainnet.

Alchemy's arbitrum node setup
Setting up an Arbitrum node on its mainnet

Step 3. Install the NPM package and Alchemy SDK

You will need the npm package moving forward if you do not have it already. Then, run this command to install the Alchemy SDK.


npm, install alchemy-SDK

Step 4. Connect and Make Node Requests to the Arbitrum Mainnet

Using Ether.js or Web.js, you will need to import the Alchemy SDK and make a node request. Paste this command to import the SDK:


import { Network, Alchemy } from 'alchemy-sdk';

Now, you should configure your object by inputting your Alchemy Arbitrum API key. To know your API key, go to your dashboard on Alchemy and click the view key on the app.

Alchemy API keys for Arbitrum project
Alchemy API keys for Arbitrum project

Run this command in your environment:



const settings = {
  apiKey: ''5k6uBQE1ezfYaSom0qUVKLf0RzczKrIw', 
  network: Network.ARB_MAINNET, 
};
const alchemy = new Alchemy(settings);

alchemy.core.getBlockNumber().then(console.log);

Step 5. Node Request Analytics and Report

You will be able to monitor whether or not your requests were successful and the speed of execution ‚ÄĒ everything will be displayed on your dashboard.

Live Arbitrum node via the Alchemy dashboard
Live Arbitrum node in the Alchemy dashboard

How to Set up Your Own Arbitrum Full Node

Perhaps you want to set up your own Arbitrum full node and run it, you can take the steps below.

Step 1. Get the Arbitrum Node Docker Image 

Before you can run an Arbitrum node, you need to get some dependencies and libraries which are contained in a docker image.

Step 2. Get An Ethereum Node RPC Endpoint 

There are two options for you to get this; either you use an Arbitrum RPC endpoint provider or you build your own Ethereum node ‚ÄĒ which is another process entirely.¬†

If you want to leverage an Arbitrum RPC node provider, you can use Alchemy. 



--l1.url=<insert your RPC URL here>

Step 3. Connect with the Arbitrum Mainnet 

Once you have your dependencies set, you can run this code to make a node request to the Arbitrum main network:



docker run --rm -it -v /some/local/dir/arbitrum-mainnet/:/home/user/.arbitrum/mainnet -p 0.0.0.0:8547:8547

At this point, don't be alarmed when you run these programs and they don't work on your computer. There is no standard way of running a full Arbitrum node at the moment. 

The Offchain Labs, the team behind Arbitrum, have not yet released official detailed documentation on how to run their nodes. 

Thus, your ability to successfully run the node depends on how compatible your device might be and how well you have mastered CLI. 

Get Your Arbitrum Nodes Up and Running Today!

Running an Arbitrum full node is a time-consuming and financially-demanding activity that has no direct impact on what you’re working on as a developer. You need to acquire a device with the proper hardware requirements, wait for the complete blockchain ledger to download and then manage it on a day-to-day basis. 

Most developers often choose to skip this tedious process and opt to enjoy the service of a node provider. Alchemy is the go-to node service provider that can help you set-up Arbitrum nodes within a few clicks! Get started with Alchemy today.

{{get-started-arbitrum}}

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