An unknown actor broadcast a Bitcoin transaction Thursday evening embedding the full text of the U.S. Constitution onto the blockchain — permanently and without the possibility of removal.

The transaction, confirmed at 8:25 p.m. UTC on May 28, cost 113,454 satoshis, or about $83.41 in fees, and was processed by mining pool SpiderPool just 14 minutes after it hit the network. 

At 44.4 kilobytes, the transaction is far larger than a standard Bitcoin transfer — its bulk comes from the Constitution’s full text, beginning with “We the People of the United States,” written into an OP_RETURN output field and recorded on-chain.

How it worked on Bitcoin

OP_RETURN is…

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