Bitcoin: A Peer-to-Peer Electronic Cash System.¶
Nakamoto, S. (2008). Bitcoin: A Peer-to-Peer Electronic Cash System.
Cited by¶
5 citations across 5 artifacts.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Access Friction
- In proof-of-work systems, the protocol requires expending computation to participate, deliberately making entry costly to resist Sybil attacks.
This sourceSpecifies proof-of-work — finding a nonce so a block's hash falls below a target by expending computation, with difficulty auto-adjusting to a fixed block rate — as a deliberately costly entry requirement that makes Sybil-style identity flooding economically infeasible.
SupportedVerified against the work's full text
Nakamoto makes CPU effort the price of creating blocks and voting, so that anyone able to allocate many IP addresses cannot subvert majority decisions.
“The proof-of-work also solves the problem of determining representation in majority decision making. If the majority were based on one-IP-address-one-vote, it could be subverted by anyone able to allocate many IPs. Proof-of-work is essentially one-CPU-one-vote.”
- In proof-of-work systems, the protocol requires expending computation to participate, deliberately making entry costly to resist Sybil attacks.
- Immutability
- And because the canonical record is fixed, tampering is detectable: any alteration is either impossible (the original is referenced elsewhere) or self-evident (it produces a different hash, a new entry, a fresh instrument).
This sourceWhitepaper. Introduces an append-only hash-chained ledger in which editing any prior block invalidates every subsequent block, making history structurally fixed and tampering self-evident—trust without a trusted editor, the abstract payoff of immutability instantiated cryptographically.
Supported in partVerified against the work's full text
Nakamoto shows that altering a past block requires redoing its proof-of-work and every later block, making history hard to alter; the general tamper-evidence claim across instruments is not made.
“the block cannot be changed without redoing the work. As later blocks are chained after it, the work to change the block would include redoing all the blocks after it.”
- And because the canonical record is fixed, tampering is detectable: any alteration is either impossible (the original is referenced elsewhere) or self-evident (it produces a different hash, a new entry, a fresh instrument).
- Provenance
- Cryptocurrency & NFT: On-chain provenance (transaction history of blockchain artifacts, public key signatures verifying transfers), the architecture Nakamoto (2008) introduced in the Bitcoin whitepaper; NFT provenance often problematic—the blockchain records token transfer but not the authenticity or original creation of the underlying asset.
This sourceWhitepaper. Introduces an append-only hash-chained ledger in which editing any prior block invalidates every subsequent block, making history structurally fixed and tampering self-evident—trust without a trusted editor, the abstract payoff of immutability instantiated cryptographically.
Supported in partVerified against the work's full text
Nakamoto describes the signed transaction chain and public history of transactions that underlie on-chain provenance; the NFT authenticity caveat is outside this paper.
“We define an electronic coin as a chain of digital signatures. Each owner transfers the coin to the next by digitally signing a hash of the previous transaction and the public key of the next owner”
- Cryptocurrency & NFT: On-chain provenance (transaction history of blockchain artifacts, public key signatures verifying transfers), the architecture Nakamoto (2008) introduced in the Bitcoin whitepaper; NFT provenance often problematic—the blockchain records token transfer but not the authenticity or original creation of the underlying asset.
- Verifier-Prover Asymmetry
- The identical move recurs across substrates: a scientific journal that switches from staff-written articles to externally-submitted, peer-reviewed papers is outsourcing the expensive finding (original research) to a wide author population while centralising the cheaper verification (refereeing); a cryptocurrency network's proof-of-work makes finding a valid block deliberately expensive while any node verifies a submitted block almost for free, an engineered gap that lets a large untrusted finding population coexist with cheap universal verification.
This sourceProof-of-work makes finding a valid block deliberately expensive while any node verifies a submitted block almost for free — an engineered verifier-prover gap.
Supported in partVerified against the work's full text
Nakamoto supports the proof-of-work half: block-finding is costly work that any node checks with a single hash; nothing here concerns journals or peer review.
“The average work required is exponential in the number of zero bits required and can be verified by executing a single hash.”
- The identical move recurs across substrates: a scientific journal that switches from staff-written articles to externally-submitted, peer-reviewed papers is outsourcing the expensive finding (original research) to a wide author population while centralising the cheaper verification (refereeing); a cryptocurrency network's proof-of-work makes finding a valid block deliberately expensive while any node verifies a submitted block almost for free, an engineered gap that lets a large untrusted finding population coexist with cheap universal verification.
Mechanisms¶
- Proof of Work
- It is the anti-spam logic later generalized into Bitcoin's mining.
This sourceBuilds Bitcoin’s block-production proof of work from a system explicitly modeled on Hashcash.
- It is the anti-spam logic later generalized into Bitcoin's mining.
Verification¶
Does it exist? Not checked yet. This entry carries no identifier to resolve. It was extracted from the citation as written in the article, normalized, and deduplicated against the rest of the registry.
Does it back the claim? Read against the text for 4 of 5 citations: 1 supported, 3 supported in part. Each verdict is shown under its citation below, with what in the work backs the sentence.
Support is checked per citation rather than per work — the same source can be cited soundly in one article and wrongly in another. Per-citation recording began recently, so a citation with no recorded check is a gap in the record rather than evidence it went unchecked.
See how references were verified.
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