Grantkey is an instantaneous contract clearing blockchain

Grantkey provides instantaneous clearing and immutability with centralized processing and decentralized validation based on cryptographic signatures.

CONNECT TO BLOCKCHAIN

Grantkey Ledger

CONTRACT ORIGIN DESTINATION VALUE VALIDATION PROOF
0xe18a34ae 0xfdc46280 300.00 Approved
0xd2c742939 0x89cfe363f 100.00 Approved
0xc74293925 0x61f38e18a 250.00 Rejected
0xe18a34ae 0xfdc46280 150.00 Approved
0xc74293925 0x61f38e18a 100.00 Pending

Fast

By shifting from network-wide processing to network-wide validation, Grantkey processes transactions at lightning speed with no limits on scalability.

Verifiable

All transactions are cryptographically signed making it impossible to manipulate the ledger without being detected. Network-wide validation guarantees an immutable ledger detailing all transactions and balances.

Secure

Each transaction is automatically validated by the network upholding digital contracts and preventing double spend attacks.

Blockchain

The most recent blocks on the blockchain are displayed below. Each block is cryptographically signed by the authority meaning that it can never be altered without detection since the presence of an authority-signed block external to the blockchain proves tampering (except in the case of rollups) which would trigger the selection of a new authority. You can click any block to view the full contract. You can also download the entire blockchain history here.

Grantkey Ledger

BLOCK ORIGIN DESTINATION CONTRACT TYPE VALUE STATUS CONTRACT

A wallet with your public and private keys has been automatically generated on the client-side of your device. Use the button below to download your wallet and store it in a secure location. If you lose your keys you will lose access to your tokens and NFTs.

If you don't have any tokens, the blockchain authority will allow each account a single faucet request within the first 500 blocks that will grant 250 tokens. Once you have tokens, use the form below to transfer tokens to other parties, mint NFTs, and create smart contracts. Each transaction has a cost of 1 token. Using this product means you accept the terms of service. This product is for academic / research purposes only.

ADDRESS
TOKENS
NFT COUNT
DESTINATION
TOKENS
EXTERNAL DATA HASH
FEE
SUBMISSION RESULT

Features

Grantkey Ledger

CONTRACT ORIGIN DESTINATION VALUE VALIDATION PROOF
0xe18a34ae 0xfdc46280 300.00 Approved
0xd2c742939 0x89cfe363f 100.00 Approved
0xc74293925 0x61f38e18a 250.00 Rejected
0xe18a34ae 0xfdc46280 150.00 Approved
0xc74293925 0x61f38e18a 100.00 Pending

Web-Based Client

All transactions can be performed in the browser making interaction with the network fast, simple, and secure. The web client automatically generates a key pair on the client-side which is stored locally and can be used to interact with the blockchain. Store the private key in a secure location.

Smart-Contracts

Smart-contracts can be used to transfer tokens based on the criteria specified in the contract. All transactions are automatically validated by and signed by the authority and contract validation is immediate.

Verified Immutable Transactions

The authority publishes signed transactions to a blockchain allowing any user to audit the veracity of the network.

Open Source

A trusted open source code base that can be audited for vulnerabilities.

About

Grantkey achieves instantaneous contract clearing while maintaining cryptographically secured immutability by moving from decentralized processing / validation to authority-based processing with decentralized validation. The authority is prevented from cheating because it signs every block meaning that if it ever attempts to tamper with the blockchain anyone with a receipt of a block signed by the authority that is not present in the blockchain will be able to prove that authority tampered with the chain and a new authority can be selected. This project was created as part of my masters research at NYU for CS-GY 9963 Advanced Project in Computer Science. The intent is to provide a functional prototype of the architecture described in my research. It is my hope that others will build on this research and either fork this project or create their own implementations.

Fast

By shifting from network-wide processing to network-wide validation, Grantkey processes transactions at lightning speed with no limits on scalability.

Verifiable

All transactions are cryptographically signed making it impossible to manipulate the ledger without being detected. Network-wide validation guarantees an immutable ledger detailing all transactions and balances.

Secure

Each transaction is automatically validated by the network upholding digital contracts and preventing double spend attacks.