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EMPOWERING PEOPLE WITH BLOCKCHAIN


Welcome to Symbol & NEM. Empowering the world with robust and easy-to-use Web3
infrastructure!

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A PUBLIC BLOCKCHAIN INSPIRED BY NEM

AFTER THE ORIGINAL NEM BLOCKCHAIN LAUNCH IN 2014, REDEVELOPMENT UNDER THE
CODENAME 'CATAPULT' BEGAN WITH THE INTENTION OF IMPROVING PERFORMANCE, ENHANCING
FUNCTIONALITY, AND THE REFINING THE CONSENSUS ALGORITHM. IN 2021, 'SYMBOL' WAS
LAUNCHED AS A DISTINCT BLOCKCHAIN USING THE COMPLETED 'CATAPULT' CODEBASE.
SEVERAL MONTHS AFTER LAUNCH, A SUCCESSFUL 'COMMUNITY HARD FORK' ACROSS BOTH NEM
AND SYMBOL ESTABLISHED A NEW PATH FORWARD; THIS NEW DIRECTION INCLUDES AN
EMPHASIS ON ENGAGED COMMUNITY, GENUINE DECENTERALIZATION, AND A VISION OF A
NOVEL PROTOCOL LAYER FACILITATING UNIVERSAL CROSS-CHAIN COLLABORATION THAT WOULD
EVENTUALLY EMERGE FROM NEM AND SYMBOL

What is NEM?


ADVANCED FUNCTIONALITY

Robustness and flexibility

Solid plugin-based architecture designed for maximal extensibilityLearn more

Advanced transaction logic

Built-in multisignature, support for complex multi-part transactions, and
numerous other innovationsLearn more

Easy/convenient

Symbol simplifies the issuance of various token types and namespaces with its
no-code development blockchain platformLearn more

Symbol has rock solid interfacing and excellent extensibility through its
plugin-based architecture. Developers can easily combine and utilize advanced
plug-in interfaces inclidng a Command Line Interface, public SDK, and REST APIs.
Developers do not have to start from scratch, and off-chain application
developement avoids immutable bugs, exposed code, and countless hours spent
verifying and debugging before deployment.


SUPPORTING SAFE TRANSACTIONS

BUILT-IN SECURITY FOR MULTISIG SIGNATURES

NATIVE SUPPORT FOR MULTI-SIGNATURE ACCOUNTS ALLOWS UP TO 25 SIGNATORIES AND UP
TO 3 SIGNATORY LEVELS. THE COMBINATION OF MULTI-SIGNATURE AND MULTI-LEVEL LOGIC
APPROACH ENABLES EXTREME FLEXIBILITY IN APPROVAL LOGIC. IN THE EVENT OF ONE
SIGNATORY LOSING THEIR PRIVATE KEY OR REQUIRING REMOVAL, ACCESS TO THE MULTISIG
ACCOUNT CAN BE ADJUSTED WITH THE SIGNATURES OF ALL THE OTHER CO-SIGNATORIES.
THIS FACILITATES THE DESIGN OF SECURITY AND FLEXIBLE OPERATION OF THE BLOCKCHAIN
IMPLEMENTATION ACCORDING TO THE USER'S PRACTICE.

>> show more


PROVIDE A POWERFUL, STABLE, SECURE, AND FAST SOLID NETWORK WITH A FOUR-LAYERED
ARCHITECTURE

THE SYMBOL BLOCKCHAIN IS BUILT ON A MULTI-LAYERED NODE ARCHITECTURE. PEERNODES
MAINTAINS THE NETWORK, DECENTRALIZING THE SYMBOL CHAIN AND RECORDING ITS
TRANSACTIONS AND HISTORY. APINODES INTERFACE WITH PEERNODES AND WALLETS FOR
TRANSACTION REQUESTS, HISTORY, AND THE GENERATION OF NEW BLOCKS. API NODES ALSO
INCLUDE REST GATEWAYS, WHICH FACILITATE A WIDE VARIETY OF EXTERNAL REQUESTS FROM
WALLETS AND CUSTOM-BUILT SOLUTIONS. IN ADDITION TO REST API GATEWAYS, NODES ALSO
INCLUDE A ROBUST COMMAND LINE INTERFACE THAT HELPS FACILITATE LOCALIZED
SOLUTIONS AND PLUGINS. THE SYMBOL CLIENT CONSISTS OF THE WALLET AND THE SDK; IT
IS LARGELY MODULARISED TO ENCOURAGE INNOVATION, ENSURE SECURITY, AND SIMPLIFY
UPDATES.

>> show more


POS+ CONSENSUS ALGORITHM

CONSENSUS ALGORITHMS ARE SHARED OR MUTUALLY AGREED UPON BY ALL PARTICIPATING
NODES IN A NETWORK, AND IS USED IN THE GENERATION OF NEW BLOCKS. IN SYMBOL, THE
POS+ (PROOF OF STAKE PLUS) CONSENSUS ALGORITHM IS ADOPTED AS AN IMPROVED VERSION
OF NEM'S POI (PROOF OF IMPORTANCE) ALGORITHM. SYMBOL'S POS+ MECHANISM ALLOWS
NODES TO PERIODICALLY 'HARVEST' NEW BLOCKS PROPORTIONATE TO THEIR 'IMPORTANCE'.
THE POS+ MECHANISM CONSIDERS NOT ONLY 'AMOUNT OF STAKING', BUT IT ALSO PROMOTES
THE ECOSYSTEM’S HEALTH BY REWARDING PARTICIPANTS BASED ON THEIR ACTIVITY SCORE
WHICH ARE COUNTED THROUGH 'TOTAL FEES USED BY THE WALLET' AND 'NUMBER OF TIMES
OF REWARD IN THE PAST', USING TO DISCOURAGE THE CONTINUED CONCENTRATION OF
WEALTH IN CERTAIN ACCOUNTS. THE POS+ ALGORITHM AVOIDS UNNECESSARY ENERGY WASTE,
AND IS MUCH MORE ENVIRONMENTALLY FRIENDLY THAN THE PROOF OF WORK ALGORYTHMS THAT
SECURE MANY BLOCKCHAINS. NODE OPERATORS AND DELEGATORS ARE REWARDED FOR THEIR
CONTRIBUTION TO THE MAINTAINANCE OF THE CHAIN VIA HARVESTING REWARDS. THESE
REWARDS DRAW FROM A SIGNIFIGANT POOL OF XYM ALLOCATED FOR THIS PURPOSE, AND
FOLLOW A DECLINING REWARD RATE SCHEDULE LINKED TO BITCOIN'S BLOCK REWARD MODEL.

>> show more



NEWS RELEASE

NEMTUS Hackathon HACK+ 2023

2/3/2023

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NEMTUS Hackathon HACK+ 2023

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nem /symbol Advent Calendar 2022

12/4/2022

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Dive into a stack of techs!

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An interview with Opening Line has been published

10/8/2022

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Why did you use Symbol? posted in detail

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NCFT announced by COMSA

10/8/2022

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Evolve existing non-existent NFTs into multiple limited physical NFTs with
seria...

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Symbol Community Web is launched

10/2/2022

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This site was launched by volunteers from the community

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SMOOTH INTEGRATION INTO EXISTING SYSTEMS



THE CORE CONTRIBUTORS BEHIND NEM LEARNED COUNTLESS LESSONS ALONG THE WAY, AND
THESE LESSONS HAVE HEAVILY INFLUENCED SYMBOL. SYMBOL WAS DESIGNED WITH USABILITY
AND EXTENSIBILITY IN MIND; WHILE WALLETS PROFOUNDLY ENABLE THE AVERAGE USER, THE
BOUNDLESS EXTENSIBILITY PROVIDED BY THE SDK, CLI, AND REST API EFFECTIVELY
SHATTER BARRIERS TO DEVELOPMENT. YOU DO NOT NEED TO LEARN CRYPTOGRAPHY NOR A
SPECIFIC PROGRAMMING LANGUAGE IN ORDER TO PROFOUNDLY INTERACT WITH THE
BLOCKCHAIN; EVEN JUNIOR DEVELOPERS AND HOBBIESTS CAN BUILD WITH EASE.

Getting Started with SDKsSDKs Repository


START SYMBOL

How to Choose a Wallet

Things to watch out for

Where to consult when you need help

Information for developers

LET'S GO EXPLORER

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ABOUT US

Symbol Community Web is run by members of the community. Meet the team behind
the site.

About Us


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