The evolution of blockchain technology has been swift since the inception of Bitcoin, marked by
continual advancements and the emergence of new challenges. Among these challenges lies the
blockchain trilemma, encompassing Security, Scalability, and Decentralization. Traditionally, blockchain
networks have grappled with balancing these three parameters. BlockDAG represents an innovative
approach aimed at addressing this trilemma.
This paper introduces a protocol tha”t diverges from the conventional linear chain of blocks, instead
employing a directed acyclic graph (DAG) structure. We delve into the algorithms governing the
creation and ordering of the DAG, while also elucidating how the protocol ensures both security and
scalability.
Note: This technical document is an ongoing project. We will update this document to reflect the most
recent development progress. Our development process is ongoing and iterative, therefore the code
and implementation may alter from what is represented in this paper.
DAGstract
The realm of distributed ledgers has witnessed a remarkable evolution, spearheaded by blockchain
technology. Blockchains have revolutionized data security and trust, offering an immutable record of
transactions across a decentralized network. However, as blockchain adoption grows, limitations in
scalability and transaction speed have emerged. Directed Acyclic Graphs (DAGs) have emerged as
a potential solution, offering parallel processing and faster throughput. Yet, DAGs often come with
trade-offs in terms of security and decentralization.
Evolution of chain:
Reimagining DLT with BlockDAG

BlockDAG is a hybrid concept that combines features of both traditional
blockchains and DAGs. It retains the benefits of DAGs, such as high
scalability and faster transaction processing, while integrating the
security and trust of blockchain consensus mechanisms.
BlockDAG emerges as a groundbreaking solution, meticulously
merging the strengths of both blockchain and DAG architectures. It
leverages the robust security and decentralization of blockchains
while incorporating the efficient, scalable transaction processing
of DAGs. This strategic integration allows blockDAG to handle a
significantly higher volume of transactions at faster speeds compared
to traditional blockchains. By overcoming the inherent limitations
of both technologies, blockDAG paves the way for a future where
distributed ledgers can seamlessly scale to meet the ever-growing
demands of the cryptocurrency and broader digital landscape.