Questions tagged [swarm]

incentivised, censorship-resistant decentralised storage

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42 views

What is the current state of Swarm and Whisper?

What is the current state of Swarm ? Are they decentralized as they claim they are or they are still in development ? I am asking this because I've seen that there is no incentive for the nodes to ...
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1answer
45 views

how to securely share digital asset in a fully decentralized DApp

I want to design a proof of concept of a fully decentralized secure asset sharing DApp. Seller uploads the asset they want to share with a price and buyer pays it with ether or a token. Frontend and ...
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Fail in doing swarm db migration

I had updated swarm v0.3 to v0.4. Now I'm trying to do DB migration. I did this command: $ swarm --verbosity 5 db export .ethereum/swarm/bzz-a8a75fcfa45273cdfe27c24d87ab9c41b199d9b7/chunks djstorage/...
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67 views

Geth SWARM no peers found!

Synced via Geth lightnode to latest block --cache=2048. (7200RPM HDD with 8GB RAM) Then created new geth account and did swarm --bzzaccount $BZZ I'm am able to only browse localhost, upload to local ...
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1answer
19 views

Create PSS clients connection for each user?

Good morning! I am looking at the PSS API checking the erebos/pss.js example. I am slightly confused with the follow: const alice = new PssAPI(createRPC('ws://127.0.0.1:8501')) const bob = new PssAPI(...
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1answer
17 views

Updating a feed fails: Signer address does not match the update request

This is what I run (0x65686c6c0a is "hello" in hex) swarm --verbosity 2 --bzzaccount `cat Alice` --passsword Pass & swarm --bzzaccount `<Alice` --password Pass feed create --name neverchanges &...
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19 views

Is there a node-static.json file for swarm node?

As far as I am aware of a static-node.json is a file for P2P geth node connection on disconnect. I have tested that and It works just fine. I was, therefore, wondering if it is possible to have such a ...
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1answer
20 views

Importing a contract from swarm

I am trying to import this contract from the swarm node and need to use the functions in this contract but I could'nt import it from swarm using this code pragma solidity ^0.4.8; import {...
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12 views

Swarm Formal Spec

Is there a formal spec for the Ethereum-Swarm protocol? I read the architecture section of the Swarm docs, but I think it's more of an overview. I need something with more notation, like the yellow ...
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0answers
98 views

What is the position of Whisper and Swarm in the Ethereum 2.0 Roadmap

Back in 2015, Ethereum vision was to be a "World Computer" relying on three main complementary technologies: Ethereum for decentralized Logic Swarm for decentralized Storage Whisper for decentralized ...
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1answer
71 views

How do we extract the content of a hash manifest generated by swarm after a download?

As far I know, whenever we upload a file or a directory using: swarm up File we get back a hash that is the manifest containing the uploaded file. However, I am not sure I do understand how to ...
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Why Swarm so slow? No peers found?

I made # swarm up 1.mp4 58740257f3519e1e20a85994eefc3a4d8d40ac5f8649d5acf93d174676279ad5 and push 497Mb video to swarm. Swarm works and connected to my account. When I try in Chrome localhost:...
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20 views

Does Swarm reward content owner?

Here https://github.com/ethereum/go-ethereum/wiki/Swarm---TODO I saw -- scheme to reward content owner each time content is accessed. i.e accessing content would requires fee. this would reward ...
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1answer
485 views

How to fix “unexpected directory layout” error when Installing go-ethereum?

All, I hope this question belongs here. I am following a Blockgeeks tutorial, trying to set up my environment for Ethereum blockchain development. I have basically gotten to the final step, ...
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1answer
47 views

What does it mean Ethereum Swarm account?

ETH wallet is something like 0xd0a6e6c54dbc68db5db3a091b171a77407ff7ccf I read Swarm docs and see in our example swarm --bzzaccount 2f1cd699b0bf461dcfbf0098ad8f5587b038f0f1 (You should ...
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1answer
28 views

How can I start swarm such that the api's are available from other machines?

I'm running this: swarm \ --bzzaccount $ACCOUNT \ --password .ethereum/.password \ --bzzapi "http://0.0.0.0:8500" \ --lightnode And when I curl from localhost I get a response: $ curl http:/...
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1answer
155 views

What is bzz protocol?

While studying about swarm, I came to know that every Swarm node exposes a local HTTP proxy that implements the BZZ URL schemes. What is BZZ protocol here?
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1answer
55 views

about ethereum swarm download speed

Torrents also increase in speed as the number of peers increases. swarm Is the same? This is because dividing the data into chunks is the same.
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How the Ethereum Swarm connects nodes and several related questions

Read everything after https://swarm-guide.readthedocs.io/en/latest/usage.html and leave an article. Some questions about etherium swarm Where is the uploaded data stored? And how do you find it? I ...
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42 views

Can't access swarm : bzz://theswarm.eth/ from mist browser

When accessing the URL in Mist, and after connecting my account, I get an empty white screen. Running on OS X with the version 0.11.1 of Mist. Any idea where it could come from ? Thanks.
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1answer
115 views

Some questions about ethereum swarm

I have read https://swarm-guide.readthedocs.io/en/latest/up-and-download.html. But it does not make sense. So I want to ask a few questions. After syncing geth and swarm, I uploaded the data to swarm....
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36 views

IPFS Protocol upgrade or migrations

How would I migrate from IPFS, let says that I got 10M files linked by IPFS, and I want to migrate all of them to Swarm, how would I do that? The question in a different way: I want to use a new ...
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49 views

Why download from Ethereum Swarm too low?

I have two 100mbps servers. On server #1 I execute: swarm up 50mb.testfile On server #2 I execute: wget -O 50mb.testfile http://localhost:8500/bzz:/.../ I see download speed 70KB/s In swarm log I ...
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Can we use Ethereum Swarm to store normal data other than blockchain or dapp data.

I want some basic data to be stored like name and city phone no etc.So just want to ask can I use ethereum swarm just to store file and make several node to create decentralized storage.
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1answer
114 views

How to upload file to public swarm?

I have ubuntu server. I tried to make root@vid:~# swarm up 1.txt 65b03c05950213ae7d3d55659aabe1828c07ea79c30a4e61e44342a8b5d41653 root@vid:~# How can I see this file from my local Mist browser? ...
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1answer
230 views

Does Ethereum Swarm work?

I need to upload 8Tb data to Swarm. I read docs but I can't understand: does public swarm work?
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1answer
87 views

How can we calculate swarm storage cost?

I am trying to integrate ethereum to another fin-tech app, the basic idea is to store the transaction details on swarm and then pass the hash on ethereum network. I haven't used swarm earlier and I am ...
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2answers
298 views

How do I install an OLD version of Geth and Swarm?

I need to install an old version of Swarm : version 1.7.3-stable , but I can't figure out how to install it from the command line. I'm on Mac OSX. I've found these old downloads: https://geth....
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1answer
75 views

Running Swarm on AWS

After succesfully setting up a POA network on azure (hurray for 1 click deployment), i wanted to set up a private Swarm cluster (well , 1 node will do for testing). I took an AWS EC2 instance to save ...
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1answer
96 views

Problem installing Swarm

I have a problem installing Swarm. when i enter sudo apt-get install ethereum-swarm i get a problem saying : dpkg: error processing archive /var/cache/apt/archives/ethereum-swarm_0.3.1+build14601+...
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268 views

Swarm in a Private Network

I have just finished installing Swarm and I managed to follow the documentation. I created a new account using geth account new and I connected using said account using the below line swarm -...
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Quorum Swarm: Can't find swarm account: no key for given address or file [duplicate]

While using Swarm in Quorum, I am getting the following error: Can't find swarm account: no key for given address or file Any similar encounters?
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1answer
579 views

How long do my files stay on IPFS when I upload it?

I'm trying to grasp the concept of how IPFS works. Say if I upload 1GB of data to IPFS. How long does it stay there? Or do I have to leave my computer on at all times for the file to be live on the ...
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2answers
179 views

In Ethereum and Swarm, Difference between Sharding and Chunking

Understand that in Ethereum further releases sharding will be included for scalability purposes. In swarm, "Chunks are pieces of data of limited size (max 4K), the basic unit of storage and retrieval ...
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2answers
458 views

MongoDB vs Ethereum Swarm

I am designing a DAPP. I have two options available for storage MongoDB OR Ethereum swarm(OR IPFS). As MongoDB also replicates data to multiple shards fault tolerance is available in MongoDB. What ...
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1answer
185 views

Does Swarm caches blocks like IPFS do?

When we retrieve a file through IPFS, it caches the file in IPFS' repository. Later when we want to fetch the same file or its updated version, only block that contains the changed character will be ...
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0answers
51 views

Swarm node crashes when uploading big files

I noticed that when I try to upload files which size are around 100KB or higher to swarm, my node crashes with the following message: panic: runtime error: slice bounds out of range goroutine 27181 [...
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1answer
225 views

How do the ethereum components work together

hy i have been reading about the ethereum project and its components, i understand that there are 3 major components (EVM, swarm, whisper) Swarm is a peer to peer data sharing network in which ...
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1answer
358 views

When should I use Whisper or PSS over Traditional Message Channel like AWS SQS?

What are the benefits using Whisper or swarm/PSS over using a centralized service like Amazon SQS? My use-case is: deliver information (to say to another party that they should do an action in a ...
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1answer
181 views

Connecting 2 ethereum swarm nodes

I have two geth nodes and I want to run 1 swarm node on each node. I made a boot node for the two swarm nodes to communicate with each other. I run the first swarm node with the following command ...
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1answer
230 views

How to import data from MySQL database to swarm

In an application which is all ready developed and deployed data is stored in MySQL database. I want to import that data into swarm. Reasons to import data in swarm - 1) All the data shall not be ...
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2answers
1k views

Store and retrieve data of MongoDb documents using hash which is stored in blockchain

Blockchain can not store and shall not be used to store all the data of users. There are 2 reasons for that - 1) To store data in blockchain requires gas price (transaction cost) 2) Since all blocks ...
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1answer
199 views

Backend on swarm

I am currently building a dapp on my server which I would like to port to swarm or ipfs and make it completely decentralized. The initial app will be these components - front end javascript app - ...
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1answer
547 views

Is it possible to delete files in SWARM?

If not what are some similar protocols to IPFS and SWARM that allow you to delete files?
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1answer
513 views

Using EVM or Swarm for datastore

I want to maintain a datastore of key value pairs. For example, I have users of my dapp input their favorite food. I would like to map their account to the food name. It is my understanding that I can ...
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2answers
281 views

Smart contracts that interact with swarm content

Is it possible for a smart contract to access swarm-content to perform an operation? For example, lets say a user uploads a document to swarm. I would then like to take access the contents of the ...
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1answer
230 views

How to upload contract metadata to Swarm from command line?

I'm running a geth node in a private network, and running swarm in singleton mode on that network. I'm deploying contracts via JSON-RPC; I'm not using JavaScript. I run the command solc --optimize --...
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1answer
341 views

Swarm ethereum installation in windows

I tried to install swarm in windows.swarm comes up with mist browser .after that I have started running a private block chain using my custom genesis bloc and started running swarm using this below ...
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122 views

What is the current state of distributed storage? [closed]

Swarm, IPFS, Filecoin, etc.. What project(s) is typically best practice for dapp storage and what is the current state and future roadmap for dapp storage? Any recommendations on the best dapp stack?
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634 views

Swarm web3 upload file from browser

Im following this documentation to implement an application that I pick a file with an input tag <input id="upload" type="file" /> and im tyring to upload using web3 js : document....