👨💻 Hashcash: A Glimpse Into Bitcoin's Future
Before Bitcoin, there was Hashcash. On March 28, 1997, Adam Back introduced the world to a proof-of-work system designed to fight email spam — never knowing it would later form the backbone of Bitcoin mining. Thank you, Adam!
https://bitcoin-calendar.org/en/events/1997-03-28/hashcash-a-glimpse-into-bitcoins-future
BitcoinCalendar / Bitcoin Calendar
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2026-03-28 08:30:44 UTC
Author Public Key
npub1tcalvjvswjh5rwhr3gywmfjzghthexjpddzvlxre9wxfqz4euqys0309hnSeen on
wss://nostr.oxtr.devPublished at
2026-03-28 08:30:44 UTCEvent JSON
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"content": "👨💻 Hashcash: A Glimpse Into Bitcoin's Future\n\nBefore Bitcoin, there was Hashcash. On March 28, 1997, Adam Back introduced the world to a proof-of-work system designed to fight email spam — never knowing it would later form the backbone of Bitcoin mining. Thank you, Adam! \n\nhttps://bitcoin-calendar.org/en/events/1997-03-28/hashcash-a-glimpse-into-bitcoins-future",
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