What are Blockchain enabled smart contract locks?

Blockchain-Enabled smart locks refer to a type of lock that uses blockchain technology for security and management. In this system, the lock's access control and key management are managed through a blockchain network. The lock is equipped with a unique identifier and connected to the blockchain network, allowing for secure, decentralized access control. This means that keys or access rights can be granted, revoked, or transferred without the need for a central authority.

Smart locks also provide a tamper-proof, secure, and permanent record of all lock activity. This makes it possible to track the history of access control, and enables advanced features such as automatic key revocation when an employee leaves a company or a rental lease expires.

One of the main benefits of blockchain-enabled smart locks is the increase in security compared to traditional locks. The decentralized nature of the blockchain network makes it virtually impossible for a malicious actor to hack into the system, as they would need to compromise the entire network in order to gain access to a single lock. This greatly improves the security of the lock and its access control.

Another benefit is the convenience of not having to carry physical keys or access cards, as access can be granted through a digital key stored on a mobile device. This makes it possible to grant access to someone remotely, without having to physically meet them or mail a key.

Simplified example

Blockchain-enabled smart locks can be compared to a traditional lock on your house door, but with a few additional features. Just like a traditional lock, a blockchain-enabled smart lock requires a key to open it, but it can also be unlocked using a unique code or through a smartphone app. The difference with a blockchain-enabled smart lock is that the unlocking process is secured through the use of blockchain technology. This means that each time the lock is opened, a new transaction is recorded on the blockchain, creating a permanent and unalterable record of who has entered the house and when. Just like a ledger in a traditional bank, the blockchain acts as a secure record-keeping system that can't be tampered with, ensuring that only authorized individuals have access to the house.

The History of Blockchain-Enabled Smart Locks

Blockchain-enabled smart locks represent a transformative integration of blockchain technology into the realm of physical security systems. Their history traces back to the intersection of blockchain and IoT (Internet of Things), aiming to enhance traditional lock and access mechanisms with decentralized ledger technology. These innovative locks, introduced in recent years, leverage the immutable nature of blockchain to augment security by recording access logs, managing permissions, and enabling remote control functionalities. This convergence of blockchain and smart locks addresses concerns about tamper-proof access control, offering heightened security and traceability in various sectors such as real estate, hospitality, and supply chain management.


Blockchain-based voting system: A blockchain-based voting system is an example of how blockchain technology can be used to create tamper-proof, transparent, and secure voting systems. The idea is that each vote is recorded on the blockchain, which ensures that the vote cannot be tampered with or altered in any way. This type of voting system could be used in political elections, corporate elections, or any other scenario where a transparent and secure voting system is needed.

Blockchain-based supply chain management: Blockchain technology can be used to create a more efficient and transparent supply chain management system. By recording each step of the supply chain on the blockchain, companies can track products from their origin to their final destination. This can help to prevent counterfeiting and ensure that products are ethically and sustainably produced. Blockchain-based identity management: Blockchain technology can also be used to create secure and decentralized identity management systems. By recording identity data on the blockchain, individuals can control and manage their own identity data, rather than relying on centralized authorities. This can help to prevent identity theft and other types of fraud, and can provide individuals with greater control over their personal data.

  • Blockchain: Blockchain is a decentralized, digital ledger that records transactions across a network of computers.

  • Blockchain Transmission Protocol (BTP): Blockchain Transmission Protocol (BTP) is a set of standardized protocols and methods for transmitting information between different blockchain networks.