No reference to "cryptocurrency" ...
HOW TO MAKE A MINT: THE CRYPTOGRAPHY OF ANONYMOUS ELECTRONIC CASH
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https://groups.csail.mit.edu/mac/classes/6.805/articles/money/nsamint/nsamint.htmStefan Brands, Untraceable Off-Line Cash in Wallets with Observers, Advances in Cryptology CRYPTO '93, Springer-Verlag, pp. 302-318
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https://link.springer.com/content/pdf/10.1007%2F3-540-48329-2_26.pdfDavid Chaum, Achieving Electronic Privacy, Scientific American (August 1992), 96-101.
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https://www.chaum.com/publications/ScientificAmerican-AEP.pdfDavid Chaum, Security without Identification: Transaction Systems to make Big Brother Obsolete, ACM 28 no. 10 (Oct 1985), 1030-1044.
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https://www.cs.ru.nl/~jhh/pub/secsem/chaum1985bigbrother.pdfDavid Chaum, Amos Fiat, and Moni Naor, Untraceable Electronic Cash, Advances in Cryptology CRYPTO '88, Springer-Verlag, pp. 319-327.
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http://blog.koehntopp.de/uploads/chaum_fiat_naor_ecash.pdfDavid Chaum and Torben Pedersen, Transferred Cash Grows in Size, Advances in Cryptology - EUROCRYPT '92, Springer-Verlag, pp. 390-407.
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https://link.springer.com/content/pdf/10.1007%2F3-540-47555-9_32.pdfDavid Chaum and Torben Pedersen, Wallet Databases with Observers, Advances in Cryptology CRYPTO '92, Springer-Verlag, pp. 89-105.
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https://link.springer.com/content/pdf/10.1007%2F3-540-48071-4_7.pdfTony Eng and Tatsuaki Okamoto, Single-Term Divisible Electronic Coins, Advances in Cryptology EUROCRYPT '94, Springer-Verlag, pp. 311-323.
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https://link.springer.com/chapter/10.1007/BFb0053446 - No reference in Abstract -
Undetermined.
Niels Ferguson, Extensions of Single-term Coins, Advances in Cryptology - CRYPTO '93, Springer-Verlag, pp. 292-301.
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https://link.springer.com/chapter/10.1007/3-540-48329-2_25 - No reference in Abstract -
Undetermined.
Niels Ferguson, Single Term Off-Line Coins, Advances in Cryptology - EUROCRYPT '93, Springer-Verlag, pp. 318-328.
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https://link.springer.com/chapter/10.1007/3-540-48285-7_28 - No reference in Abstract -
Undetermined.
Alfred J. Menezes, Elliptic Curve Public Key Cryptosystems, Kluwer Academic Publishers, Boston, 1993.
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http://www.cs.nthu.edu.tw/~cchen/CS4351/jurisic.pdfTatsuaki Okamoto, An Efficient Divisible Electronic Cash Scheme, Advances in Cryptology - CRYPTO '95, Springer-Verlag, pp. 438-451.
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https://link.springer.com/content/pdf/10.1007%2F3-540-44750-4_35.pdfTatsuaki Okamoto and Kazuo Ohta, Universal Electronic Cash, Advances in Cryptology - CRYPTO '91, Springer-Verlag, pp. 324-337.
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Undetermined.
Sebastiaan von Solms and David Naccache, On Blind Signatures and Perfect Crimes, Computers & Security 11 (1992), 581-583.
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https://www.semanticscholar.org/paper/On-blind-signatures-and-perfect-crimes-Solms-Naccache/67bb82e6981239270d644e60e8f868b4f0752126 - No reference in Abstract -
Undetermined.
Markus Stadler, Jean-Marc Piveteau, and Jan Camenisch, Fair Blind Signatures, Advances in Cryptology - EUROCRYPT '95, Springer-Verlag, pp. 209-219.
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https://link.springer.com/chapter/10.1007/3-540-49264-X_17 - No reference in Abstract -
Undetermined.
Further ...
Unenumerated: Bit gold
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https://unenumerated.blogspot.com/2005/12/bit-gold.html - Note only reference in later comments ??
cryptocurrency - Google Trends
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https://trends.google.com/trends/explore?date=all&q=cryptocurrencyhashcash.org - 2009
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https://web.archive.org/web/20090707030656/http://www.hashcash.org/docs/hashcash.txtZooko's Hack Log
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https://web.archive.org/web/20090426214618/http://testgrid.allmydata.org:3567/uri/URI:DIR2-RO:j74uhg25nwdpjpacl6rkat2yhm:kav7ijeft5h7r7rxdp5bgtlt3viv32yabqajkrdykozia5544jqa/wiki.html#%5B%5BDecentralized%20Money%5D%5DBitcoin on sourceforge.net
2009
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https://web.archive.org/web/20091129231620/http://sourceforge.net/projects/bitcoin/April 2010
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https://web.archive.org/web/20100414195759/http://sourceforge.net/projects/bitcoin/bitcoin.org
2009 ... nope ...
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https://web.archive.org/web/20090131115053/http://bitcoin.org/-
https://web.archive.org/web/20090303195936/http://bitcoin.org/-
https://web.archive.org/web/20090823095446/http://www.bitcoin.org/Jan 2010 ...
"Bitcoin P2P Cryptocurrency" <<<<< does pre-date my OP post !!!
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https://web.archive.org/web/20100106082749/http://www.bitcoin.org/??