The Sybil Attack.¶
Douceur, J. R. (2002). The Sybil Attack. Peer-to-Peer Systems.
Cited by¶
4 citations across 4 artifacts.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Access Friction
- The composition filter is explicit: membership in the set of block-producers reflects who could afford the computational cost, which is precisely the point — it makes Sybil attacks (one actor cheaply spawning many identities to outvote the network) structurally expensive, since each identity must pay the full work cost.
This sourceDefines the Sybil attack — a single actor cheaply forging many identities to outvote a network — and argues that without a costly entry barrier identities cannot be made expensive, the threat proof-of-work's per-identity work cost is designed to defeat.
Supported in partVerified against the publisher's abstract
The abstract supplies the Sybil-attack definition (one entity presenting many identities to seize a fraction of the system) but not the block-producer or per-identity work-cost mechanism.
“However, if a single faulty entity can present multiple identities, it can control a substantial fraction of the system, thereby undermining this redundancy.”
- The composition filter is explicit: membership in the set of block-producers reflects who could afford the computational cost, which is precisely the point — it makes Sybil attacks (one actor cheaply spawning many identities to outvote the network) structurally expensive, since each identity must pay the full work cost.
- Vouched Anonymity
Mechanisms¶
- Platform Abuse Controls
- Each account looks plausible alone; the harm is the coordinated whole — a classic Sybil attack, one operator wearing many forged identities.
This sourceDefines a Sybil attack as one entity presenting multiple apparently distinct identities, thereby defeating safeguards that depend on independent participants.
- Each account looks plausible alone; the harm is the coordinated whole — a classic Sybil attack, one operator wearing many forged identities.
- Sybil, Collusion, and Brigading Detection
- It watches how reputation is produced and attacked, and flags patterns that mean the signal is being manufactured or weaponized: one operator behind many accounts (a Sybil attack
This sourceDefines a Sybil attack as one faulty entity presenting multiple identities in a distributed system.
- It watches how reputation is produced and attacked, and flags patterns that mean the signal is being manufactured or weaponized: one operator behind many accounts (a Sybil attack
Verification¶
Does it exist? Confirmed. This work's DOI resolves to a registered record, which fixes its identity. That is all it fixes.
Does it back the claim? Read against the text for 1 of 4 citations: 1 supported in part. Each verdict is shown under its citation below, with what in the work backs the sentence.
Was it audited? Yes. A second, independent pass read the citation against the article text and recorded a verdict.
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.
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Links previously used in the corpus¶
Before the registry existed this work was also linked 1 other way.
Registry ID ref:6b5edbddb078 · see in the full table