• Dapps:16.23K
  • Blockchains:78
  • Active users:66.47M
  • 30d volume:$303.26B
  • 30d transactions:$879.24M

Adam Back reveals he did not own Bitcoin until 2013

user avatar

by Giorgi Kostiuk

a year ago


Adam Back, a renowned cryptographer and inventor of Hashcash, shared intriguing details about his Bitcoin ownership. Although his inventions impacted cryptocurrency's development, he didn’t acquire Bitcoin until 2013.

The History of Hashcash Invention

Hashcash was invented by Adam Back in 1997 as a proof-of-work algorithm to combat spam and denial-of-service attacks. This algorithm played a crucial role in the setup of Bitcoin's mining process and influenced the creation of its proof-of-work model. Back's contributions were mentioned in Satoshi Nakamoto's 2008 white paper.

Lack of Bitcoin Ownership until 2013

Despite his significant role in cryptographic systems development, Back did not own Bitcoin until 2013. He admitted it was a mistake, expressing regret over not purchasing or mining Bitcoin in 2009.

Correct.

Blockstream Company's Development

After his initial Bitcoin purchases in 2013, the cryptocurrency's price grew by more than 50,000%. In 2014, Back founded Blockstream, a company developing infrastructure for Bitcoin and other decentralized systems. Blockstream is known for innovations like sidechains, Liquid Network and the Bitcoin satellite network.

Despite contributing significantly to cryptocurrency's development, Adam Back only began owning Bitcoin in 2013. His subsequent work with Blockstream further advanced decentralized technology.

0

Rewards

chest
chest
chest
chest

More rewards

Discover enhanced rewards on our social media.

chest

Other news

Stablecoin Activity and Tokenized Assets Surge on Polygon

chest

Stablecoin supply on the Polygon network surged to nearly $3 billion in Q4 2025, with significant activity in non-USD stablecoins, particularly in Latin America.

user avatarMaya Lundqvist

Polygon Reports Increased Onchain Activity in Q4 2025

chest

Polygon closed Q4 2025 with significant growth in onchain usage, especially in payments and stablecoin transfers, processing $350 billion in transfers, a 96% increase from the previous quarter.

user avatarLeo van der Veen

Potential Downside Risks for Bitcoin

chest

If Bitcoin fails to hold above the weekly open, it may face deeper downside targets between 70,800 and 69,100.

user avatarLi Weicheng

RippleX Launches Permissioned Domains on XRP Ledger Mainnet

chest

RippleX has launched permissioned domains on the XRP Ledger mainnet, enhancing institutional access to compliant liquidity pools.

user avatarAisha Farooq

Egrag Crypto Warns of Potential Market Risks

chest

Egrag Crypto warns of potential market risks for XRP investors due to external factors like regulatory changes.

user avatarBayarjavkhlan Ganbaatar

Egrag Crypto Offers Guidance for XRP Investors

chest

Egrag Crypto offers guidance for XRP investors on managing emotional and financial resources during market downturns.

user avatarTenzin Dorje

Important disclaimer: The information presented on the Dapp.Expert portal is intended solely for informational purposes and does not constitute an investment recommendation or a guide to action in the field of cryptocurrencies. The Dapp.Expert team is not responsible for any potential losses or missed profits associated with the use of materials published on the site. Before making investment decisions in cryptocurrencies, we recommend consulting a qualified financial advisor.