anurag-arjun

TL;DR: There was a issue affecting a minor subset of the Polygon PoS validator and full nodes. The chain itself remained resilient and no state inconsistencies were found.

There was an issue reported today that resulted in sync inconsistencies for a small subset of the Polygon PoS validator nodes and full nodes. 

On height 5237861, the proposer of that Heimdall block went down for some time before gathering the prevotes. After coming back online, it again started to collect the prevotes of the previous voting round, but the other validators had already gossiped their prevotes, which lead to the "Error signing prevote" issue on the rest of the validators. However, waiting for the commit timeout fixed the issue.

The repercussions of these were seen on the Bor nodes of the affected nodes, with block production and sync lagging behind on these nodes. 

Heimdall validator nodes sync data at periodic intervals from the Ethereum state sync contract (e.g. token deposits, validator stake and more) and after 2/3+1 c

anurag-arjun

The Matic team has put together a Proof-of-Concept for the Reddit Scaling Bake-Off. We think Matic is the most apt solution for the scaling requirements of Reddit, keeping in mind it’s current and future needs.

We believe that the Matic Layer 2 platform is the most complete solution out there in terms of the features and fits right in with what Reddit requires:

* Security via Plasma predicates on Ethereum: Reliable exits to Ethereum (Proof-of-Stake based decentralized multi-operator Plasma construction which mitigates mass exit occurrence)
* Composability (EVM Support), 
* Extremely high scalability with each sidechain (multiple sidechains in future, hence suitable for the scale of Reddit) 
* Ability to add custom smart contract features (via Ethereum Plasma predicates) for future product innovation

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anurag-arjun

Matic Network's Great Reddit Scaling Bake-Off submission 

The Matic team has put together a Proof-of-Concept for the Reddit Scaling Bake-Off. We think Matic is the most apt solution for the scaling requirements of Reddit, keeping in mind it’s current and future needs.

We believe that the Matic Layer 2 platform is the most complete solution out there in terms of the features and fits right in with what Reddit requires:

* Security via Plasma predicates on Ethereum: Reliable exits to Ethereum (Proof-of-Stake based decentralized multi-operator Plasma construction which mitigates mass exit occurrence)
* Composability (EVM Support), 
* Extremely high scalability with each sidechain (multiple sidechains in future, hence suitable for the scale of Reddit) 
* Ability to add custom smart contract features (via Ethereum Plasma predicates) for future product innovation

anurag-arjun

pragma solidity ^0.4.24;
//interface for parent contract of any child token

/*
- Parent contract interface for adding custom logic before calling the 'transfer' function 
in the ERC721/ERC20 child chain contract on the Matic chain
- 'transfer' executes the 'beforeTransfer' of this interface contract
- It must follow this interface and return a bool value and 
- in case of ERC20 contracts, it should not have 'require' statements and instead return 'false'
- IParentToken contract address in childchain contract can be updated by owner set in rootchain contract only

anurag-arjun

const Matic = require('maticjs').default
const config = require('./config')

const mtoken = '0x343461c74133E3fA476Dbbc614a87473270a226c' // test token address
const amount = '10000000000000000' // amount in wei (0.01 TEST)
const from = '0xdcd53258BA8A69C6a505300BE75447A772bFd3d6' // from address

// Create object of Matic
const matic = new Matic({
 maticProvider: config.MATIC_PROVIDER,

anurag-arjun

const Matic = require('maticjs').default
const config = require('./config')

const mtoken = '0x343461c74133E3fA476Dbbc614a87473270a226c' // test token address
const amount = '10000000000000000' // amount in wei (0.01 TEST)
const from = '0xdcd53258BA8A69C6a505300BE75447A772bFd3d6' // from address

// Create object of Matic
const matic = new Matic({
 maticProvider: config.MATIC_PROVIDER,

anurag-arjun

matic.transferTokens(token, to, amount, {
 from,
 parent: false, // For token transfer on Main network (false for Matic Network)
 onTransactionHash: () => {
   // action on Transaction success
   console.log("Transfer done!")
 },

anurag-arjun

const token = '0x343461c74133E3fA476Dbbc614a87473270a226c' // test token address

anurag-arjun

const to = '0x4933ba598e6B1f33bCDc299bE76AbE2DdFbCC6A4' // to address

anurag-arjun

const Matic = require('maticjs').default
const config = require('./config')

const from = '0xdcd53258BA8A69C6a505300BE75447A772bFd3d6' // from address
const to = '0x4933ba598e6B1f33bCDc299bE76AbE2DdFbCC6A4' // to address

const token = '0x343461c74133E3fA476Dbbc614a87473270a226c' // test token address
const amount = '10000000000000000' // amount in wei (0.01 TEST)

// Create object of Matic