Proof of work is a form of cryptographic proof in which one party shows others that a certain amount of a specific computational effort has been spent, while anyone checking the claim can confirm it later with very little effort of their own. The idea was first proposed by Moni Naor and Cynthia Dwork in 1993 as a way to discourage denial-of-service attacks and other abuses of network services such as spam, by asking a service requester to do some work first, usually meaning processing time on a computer. Adam Back described a working system called Hashcash in 1997 as protection against email spam. The term proof of work was coined and formalized in a 1999 paper by Markus Jakobsson and Ari Juels, and Hal Finney adapted the concept to digital tokens in 2004 through reusable proof of work built on the SHA-1 hash function.
Connections
Credited To
Source Proof of work (Wikipedia)
Source Proof of work (Wikipedia)
In Field
Source Proof of work (Wikipedia)
Invented By
Source Proof of work (Wikipedia)
Source Proof of work (Wikipedia)
Sources
Proof of work (Wikipedia)
Lead section
Proof of work (also written as proof-of-work, and abbreviated PoW) is a form of cryptographic proof in which one party (the prover) proves to others (the verifiers) that a certain amount of a specific computational effort has been expended.
Invented By: Cynthia Dwork, Lead
The concept was first proposed by Moni Naor and Cynthia Dwork in 1993 as a way to deter denial-of-service attacks and other service abuses such as spam on a network by requiring some work from a service requester, usually meaning processing time by a computer.
Invented By: Moni Naor, Lead
The concept was first proposed by Moni Naor and Cynthia Dwork in 1993 as a way to deter denial-of-service attacks and other service abuses such as spam on a network by requiring some work from a service requester, usually meaning processing time by a computer.
Credited To: Cynthia Dwork, Lead
The concept was first proposed by Moni Naor and Cynthia Dwork in 1993 as a way to deter denial-of-service attacks and other service abuses such as spam on a network by requiring some work from a service requester, usually meaning processing time by a computer.
Credited To: Moni Naor, Lead
The concept was first proposed by Moni Naor and Cynthia Dwork in 1993 as a way to deter denial-of-service attacks and other service abuses such as spam on a network by requiring some work from a service requester, usually meaning processing time by a computer.
In Field: Cryptography, Lead
Proof of work (also written as proof-of-work, and abbreviated PoW) is a form of cryptographic proof in which one party (the prover) proves to others (the verifiers) that a certain amount of a specific computational effort has been expended.
In Group: Blockchain Consensus Mechanisms, Lead
Proof of work (also written as proof-of-work, and abbreviated PoW) is a form of cryptographic proof in which one party (the prover) proves to others (the verifiers) that a certain amount of a specific computational effort has been expended.
View the SourceReader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.