Hal Finney (computer scientist)

Hal Finneycypherpunk Hal FinneyHal Finney (cypherpunk)
Harold Thomas Finney II (May 4, 1956 – August 28, 2014) was a developer for PGP Corporation, and was the second developer hired after Phil Zimmermann.wikipedia
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Bitcoin

BitcoinsBitcoin walletmining
He also was an early bitcoin contributor and received the first bitcoin transaction from bitcoin's creator Satoshi Nakamoto. In 2004, Finney created the first reusable proof of work system before bitcoin.
The receiver of the first bitcoin transaction was cypherpunk Hal Finney, who had created the first reusable proof-of-work system (RPoW) in 2004.

Satoshi Nakamoto

Dorian NakamotoNakamotoNakamoto, Satoshi
He also was an early bitcoin contributor and received the first bitcoin transaction from bitcoin's creator Satoshi Nakamoto. Finney lived in the same town for 10 years that Dorian Satoshi Nakamoto lived (Temple City, California), adding to speculation that he may have been Bitcoin's creator.
Hal Finney (4 May 1956 – 28 August 2014) was a pre-bitcoin cryptographic pioneer and the first person (other than Nakamoto himself) to use the software, file bug reports, and make improvements.

PGP Corporation

ChosenSecurity
Harold Thomas Finney II (May 4, 1956 – August 28, 2014) was a developer for PGP Corporation, and was the second developer hired after Phil Zimmermann.
The second developer hired, Hal Finney, went on to become the bitcoin network's first transaction recipient in 2009.

Coalinga, California

Coalinga
Finney was born in Coalinga, California on May 4, 1956 to Virginia and Harold Thomas Finney.

Armor Ambush

After graduation from Caltech, he went to work in the computer gaming field for a company that developed video games such as Adventures of Tron, Armor Ambush, Astroblast and Space Attack.

Cypherpunk

cypherpunksCypherpunks mailing list
During the early 1990s, in addition to being a regular poster on the cypherpunks listserv, Finney ran two anonymous remailers.

Adventures of Tron

After graduation from Caltech, he went to work in the computer gaming field for a company that developed video games such as Adventures of Tron, Armor Ambush, Astroblast and Space Attack.

Proof of work

proof-of-workproof-of-work systemreusable proof of work
In 2004, Finney created the first reusable proof of work system before bitcoin.
Computer scientist Hal Finney built on the proof-of-work idea, yielding a system that exploited reusable proof of work ("RPOW").

Cryonics

cryoniccryonic suspensioncryonically
Finney died in Phoenix, Arizona, on August 28, 2014 due to complications of ALS, and was cryopreserved by the Alcor Life Extension Foundation.
Corpses subjected to the cryonics process include those of L. Stephen Coles (in 2014), Hal Finney (in 2014), and Ted Williams.

Phil Zimmermann

Philip ZimmermannPhil ZimmermanPhilip R. Zimmermann
Harold Thomas Finney II (May 4, 1956 – August 28, 2014) was a developer for PGP Corporation, and was the second developer hired after Phil Zimmermann.

California Institute of Technology

CaltechCalifornia Institute of Technology (Caltech)Cal Tech
He attended the California Institute of Technology, graduating with a BS in engineering in 1979.

Astrosmash

Astroblast
After graduation from Caltech, he went to work in the computer gaming field for a company that developed video games such as Adventures of Tron, Armor Ambush, Astroblast and Space Attack.

Cryptography

cryptographiccryptographercryptology
Finney was a noted cryptographic activist.

Anonymous remailer

anonymous remailersAnonymous emailRemailer
During the early 1990s, in addition to being a regular poster on the cypherpunks listserv, Finney ran two anonymous remailers.

Export of cryptography from the United States

export restrictionsexportexport of cryptography in the United States
Further cryptographic activism included running a (successful) contest to break the export-grade encryption Netscape used.

Netscape

Netscape Communications CorporationNetscape CommunicationsNetscape Communications Corp.
Further cryptographic activism included running a (successful) contest to break the export-grade encryption Netscape used.

David Chaum

[David] ChaumChaum, DavidChaumian
"It seemed so obvious to me: "Here we are faced with the problems of loss of privacy, creeping computerization, massive databases, more centralization - and [[David Chaum|[David] Chaum]] offers a completely different direction to go in, one which puts power into the hands of individuals rather than governments and corporations.

Temple City, California

Temple CityCity of Temple CityTemple City, CA
Finney lived in the same town for 10 years that Dorian Satoshi Nakamoto lived (Temple City, California), adding to speculation that he may have been Bitcoin's creator.

Trusted Computing

remote attestationattestationcurtained memory
He continued to program until his death; he was working on experimental software called bcflick, which uses Trusted Computing to strengthen Bitcoin wallets.

Swatting

swattedfalse report about a stabbingplay it for a 911 operator
They became victims of swatting – a hoax "where the perpetrator calls up emergency dispatch using a spoofed telephone number and pretends to have committed a heinous crime in the hopes of provoking an armed police response to the victim's home".

LessWrong

Roko's BasiliskLess Wrong
In October 2009, Finney announced in an essay on the blog Less Wrong that he had been diagnosed with amyotrophic lateral sclerosis (ALS, a/k/a "Lou Gehrig's disease") in August 2009.

Amyotrophic lateral sclerosis

ALSLou Gehrig's diseasemotor neurone disease
In October 2009, Finney announced in an essay on the blog Less Wrong that he had been diagnosed with amyotrophic lateral sclerosis (ALS, a/k/a "Lou Gehrig's disease") in August 2009.

Santa Barbara International Marathon

Finney and his wife raised money for ALS research with the Santa Barbara International Marathon.

Phoenix, Arizona

PhoenixPhoenix, AZArizona (Phoenix)
Finney died in Phoenix, Arizona, on August 28, 2014 due to complications of ALS, and was cryopreserved by the Alcor Life Extension Foundation.

Alcor Life Extension Foundation

Alcor
Finney died in Phoenix, Arizona, on August 28, 2014 due to complications of ALS, and was cryopreserved by the Alcor Life Extension Foundation.