Chain WhispersFamous messages on the blockchain
The best-known things people put into Bitcoin and Dogecoin, from Satoshi's newspaper headline in the very first block to a hacker negotiating a $320 million return. Each one as our scanner found it in the chain.
- The genesis block's headline Bitcoin, 2009
Satoshi Nakamoto put a newspaper headline into Bitcoin's very first block: proof of the date, and a comment on bank bailouts. - A tribute to Len Sassaman Bitcoin, 2011
An ASCII-art memorial to the cypherpunk Len Sassaman, signed by Dan Kaminsky and Travis Goodspeed, written into fake addresses a month after his death. - The Bitcoin whitepaper, stored on Bitcoin Bitcoin, 2013
The whole PDF of Satoshi's paper, split across the outputs of one transaction. - WikiLeaks Cablegate backup Bitcoin, 2013
Pieces of the WikiLeaks cables were uploaded to Bitcoin in 2013, labelled "Wikileaks Cablegate Backup": the first big test of the chain as an uncensorable archive. - Nelson Mandela (1918-2013) Bitcoin, 2013
A tribute two days after his death: his biography and a picture link, written into output data. - Pope Francis's Laudato si' Bitcoin, 2015
The day the Vatican published Laudato si', the Pope's letter on climate and "care for our common home", someone wrote the whole text into Bitcoin: 77 transactions over 16 blocks, about three hours (see Stories). - "She said yes" Bitcoin, 2014
"I asked this incredible woman to marry me yesterday and she said, Yes." One of the first marriage proposals kept on a blockchain. - Yuki, will you marry me? Bitcoin, 2014
A short OP_RETURN proposal from the year OP_RETURN became the standard place for messages. - Dogecoin's genesis block Dogecoin, 2013
Dogecoin's first block carries one word: "Nintondo". - RIP Kabosu Dogecoin, 2024
Kabosu, the Shiba Inu behind the Doge meme, died on 24 May 2024; Dogecoin users wrote goodbyes into the chain. - "We are whitehats" Bitcoin, 2026
The Liquid Network attacker's first message to Blockstream, hours after draining about 4,000 BTC (see Stories).