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Card I-6: SATOSHI NAKAMOTO – Paper cheques can bounce up to a week or two later. Credit card transactions can be contested up to 60 to 180 days later. Bitcoin transactions can be sufficiently irreversible in an hour or two.

Series I · Card 6 of 21 · SATOSHI’S MAILBOX

Paper cheques can bounce up to a week or two later. Credit card transactions can be contested up to 60 to 180 days later. Bitcoin transactions can be sufficiently irreversible in an hour or two.

SATOSHI NAKAMOTO · CRYPTOGRAPHY MAILING LIST · 10.11.2008

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Turn it over, answer, sign – free, no account.

Source

Cryptography mailing list (metzdowd), “Re: Bitcoin P2P e-cash paper”, 10 November 2008, 22:18 UTC (reply to James A. Donald)

Open source · satoshi.nakamotoinstitute.org ↗

About the author

Pseudonymous creator of Bitcoin. Published the whitepaper “Bitcoin: A Peer-to-Peer Electronic Cash System” in 2008 and launched the network in 2009. Their identity remains unknown.

About the source

The Cryptography mailing list: a moderated list on cryptography where Satoshi presented the whitepaper on 31 October 2008.

The question on the back

How often have you had to claw back something you had paid for?