The U.S. Department of Commerce has announced a new initiative to post real gross domestic product (GDP) data on the blockchain, starting with the July 2025 figures. According to revised estimates from the U.S. Bureau of Economic Analysis, GDP increased at an annual rate of 3.3 percent in July 2025.
This marks the first time a federal agency has published economic statistical data using blockchain technology. The Department says this approach is part of its ongoing efforts to protect federal data and promote broader public access.
The official hash for the quarterly GDP data release for 2025, and in some cases the topline GDP number, has been posted to nine blockchains: Bitcoin, Ethereum, Solana, TRON, Stellar, Avalanche, Arbitrum One, Polygon PoS, and Optimism. Dissemination was further supported by coordination with oracle services Pyth and Chainlink. Exchanges including Coinbase, Gemini, and Kraken facilitated the publishing process. The Department indicated it plans to expand these efforts by incorporating additional blockchains and partners in future releases.
According to the Department of Commerce, this effort aims both to demonstrate potential government uses for blockchain technology and serve as a proof of concept for other agencies. It also builds on prior federal initiatives intended to strengthen the United States’ position in blockchain innovation.
“It’s only fitting that the Commerce Department and President Donald Trump, the Crypto-President, publicly release economic statistical data on the blockchain,” said U.S. Secretary of Commerce Howard Lutnick. “We are making America’s economic truth immutable and globally accessible like never before, cementing our role as the blockchain capital of the world. And everybody has to admit that 3.3% GDP growth is impressive.”
Technical details released by the Department explain that a SHA256 hash was generated from a downloadable PDF containing Q2 2025 GDP data (https://www.bea.gov/sites/default/files/2025-08/gdp2q25-2nd.pdf). This hash—c70972a12908b73c2407d9cc6842ba2a02203a690f3090cd29f30c45f0cfd93d—was then posted either as memos or embedded within smart contracts across multiple blockchains.
A sample smart contract provided by the Department shows how such information is stored using Solidity code compiled for various networks:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract HashStorage {
bytes32 public gdp_pdf_hash; // SHA256 Hash of https://www.bea.gov/sites/default/files/2025-08/gdp2q25-2nd.pdf
uint256 public gdp_q2_2025; // Increments of tenths
uint256 public timestamp;
constructor(bytes32 _hash, uint256 _data) {
gdp_pdf_hash = _hash;
gdp_q2_2025 = _data;
timestamp = block.timestamp;
}
}
The contract was compiled with different versions of Solidity compiler depending on each network's requirements.
The Department clarified that this publication is intended solely for informational purposes and does not constitute an endorsement of any particular blockchain or service.
Data from the Bureau of Economic Analysis remains available through its Application Programming Interface at https://apps.bea.gov/API/signup/.
