jakiro
Written by: AIMan@Bitchain Vision
The US government has made another on-chain action.
On August 28, 2025, the U.S. Department of Commerce announced that it will release actual gross domestic product (GDP) data on nine blockchains starting from July 2025.
At the same time, Chainlink also announced that it would cooperate with the US Department of Commerce to link six key economic data to 10 blockchains.
What the hell is going on?How do the number of blockchains on it differ?How are they all on the chain?This article briefly analyzes one or two.
Hash: US Department of Commerce hash the GDP file on the link
On August 28, 2025, the U.S. Bureau of Economic Analysis announced that it would correct its annual growth rate of real GDP in the second quarter of 2025 to 3.3%.
In addition to actual GDP data, the US Bureau of Economic Analysis also released nominal GDP, actual final sales of private domestic buyers, actual total domestic income GDP, average value of actual GDP and actual GDP, domestic purchase price index, personal consumption expenditure (PCE) price index, and core PCE price index.
The file is published in PDF format: https://www.bea.gov/sites/default/files/2025-08/gdp2q25-2nd.pdf
The U.S. Department of Commerce later announced that it had published the official hash value of the PDF file of GDP data for the second quarter of 2025 (in some cases, total GDP) to the following nine blockchains:Bitcoin, Ethereum, Solana, TRON, Stellar, Avalanche, Arbitrum One, Polygon PoS and Optimism.
That is to say,The US Department of Commerce downloaded the above PDF file and performed SHA256 hashing on it, the hash result is:
c70972a12908b73c2407d9cc6842ba2a02203a690f3090cd29f30c45f0cfd93d
This hash value is then published on 9 blockchains, published in the form of memos or data embedded in smart contracts, with the total data attached (depending on the blockchain situation).
The transaction hash value or smart contract address of each blockchain is as follows:
Bitcoin transaction hash:
fcf172401ca9d89013f13f5bbf0fc7577cb8a3588bf5cbc3b458ff36635fec00
Ethereum smart contract address:
0x36ccdF11044f60F196e981970d592a7DE567ed7b
Solana transaction hash:
43dJVBK4hiXy1rpC5BifT8LU2NDNHKmdWyqyYDaTfyEeX8y3LMtUtajW3Q22rCSbmneny56CBtkictQRQJXV1ybp
TRON transaction hash:
3f05633fb894aa6d6610c980975cca732a051edbbf5d8667799782cf2ae04040
Stellar transaction hash:
89e4d300d237db6b67c 510f71c8cd2f690868806a6b40a40a5a9755f4954144a
Avalanche smart contract address: 0x36ccdF11044f60F196e981970d592a7DE567ed7b
Arbitrum One smart contract address: 0x36ccdF11044f60F196e981970d592a7DE567ed7b
Polygon PoS smart contract address: 0x36ccdF11044f60F196e981970d592a7DE567ed7b
Optimism smart contract address: 0x36ccdF11044f60F196e981970d592a7DE567ed7b
Let’s open the smart contract address of Ethereum to see:
As shown in the figure above, the hash value of the GDP PDF file of the US Bureau of Economic Analysis is indeed written into the Ethereum smart contract.
Then what’s going on with Chainlink?
Feed: Chainlink feeds 6 data to the link
Different fromThe US Department of Commerce just passes the hash value of PDF file to the chainsuperior, Chainlink uses 6 key US economic data as data sources to feed 10 blockchains.
These six data are: real GDP, actual GDP annualized growth rate, PCE price index, PCE price index annualized growth rate, actual final sales for private domestic buyers, and annual growth rate for private domestic buyers.
Chainlink first supports 10 blockchains, namely:Arbitrum, Avalanche, Base, Botanix, Ethereum, Linea, Mantle, Optimism, Sonic and ZKsync.Chainlink also said that it will update monthly or quarterly according to the situation, and will gradually support more blockchain networks according to user needs in the future.
Taking Ethereum as an example, its feed address is as follows:
This means that as long as you integrate Chainlink and choose to read U.S. Government Macroeconomic Data Feeds, Chainlink will push (push) these 6 economic indicators data of the real US economy to you on the chain.
Conclusion
Unlike the US Department of Commerce that only uploads file hash values, Chainlink may have greater significance.
Because the oracle feeds the government’s macroeconomic data (feed),Can unlock innovative use cases for the crypto market,For exampleAs data sources for predicting market judgment results, crypto assets related to issuance and official data, and inflation-linked encryption products related to the issuance and official data, they are used to predict market judgment results, and crypto products related to the issuance and official data.etc.
This time, the US Department of Commerce and Chainlink put some official U.S. data on the chain, which is of course a manifestation of the government’s further acceptance of blockchain.
But it should also be noted that many people in the encryption industry have long known that blockchain can only ensure that the data on the chain cannot be tampered with, but the reliability of uploading data itself needs to be questioned.andSome data from the U.S. government have been questioned by the market, including Trump himself.
As the GDP data released by the U.S. Bureau of Economic Analysis this time is its second estimate (Second Estimate).
The U.S. Bureau of Economic Analysis will release multiple revised data for quarterly GDP to more accurately reflect the economic situation.The first valuation (Advance Estimate) is released for the first time, usually around a month after the end of the period.The Second Estimate is about one month after the release of the first valuation and is revised based on more data to provide a more accurate economic picture.The third valuation (Third Estimate / Final Estimate) will be followed by the last valuation, based on more comprehensive data.
