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 "identifier": "kaal:position:2026-09-29-001",
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 "name": "Non Transferability Alone Does Not Create Sybil Resistance",
 "text": "Fábrega and coauthors demonstrate that formal non-transferability does not by itself preserve one-person-one-account control. TEE-based key encumbrance can let one actor rent or direct voting rights across identity-verified wallets without transferring the underlying credential. The result supports the narrower proposition that Sybil resistance also requires control-binding assumptions or countermeasures; it does not show that every non-transferable identity design fails.",
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  "name": "Wulf A. Kaal",
  "identifier": "https://orcid.org/0009-0008-7840-1847"
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 "datePublished": "2026-09-29",
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  "identity",
  "reputation",
  "sybil-resistance",
  "blockchain-governance"
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  "TEE-based key encumbrance is available",
  "wallet or credential control can be rented or delegated",
  "the protected claim is treated as a negative sufficiency proposition"
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 "currentDebate": {
  "name": "Liquefaction: Privately Liquefying Blockchain Assets",
  "url": "https://arxiv.org/abs/2412.02634v1"
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  "identifier": "kaal:claim:7456999-035",
  "url": "https://wulfkaal.github.io/claims/7456999-035",
  "citation": "Wulf A. Kaal, Reinforcement Learning from Reputation Feedback (2026). SSRN: https://ssrn.com/abstract=7456999",
  "paper": "Wulf A. Kaal, Reinforcement Learning from Reputation Feedback (2026). SSRN: https://ssrn.com/abstract=7456999",
  "authors": [
   "Wulf A. Kaal"
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  "year": "2026",
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 "mappingWhyRelevant": "The source supplies a concrete blockchain counterexample to sufficiency: formal non-transferability and identity verification do not preserve one-person-one-account control when key encumbrance permits voting rights or credential proofs to be rented across identity-verified wallets.",
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  "sourceProposition": "Fábrega et al. show that identity systems intended to prevent Sybil accounts can remain insufficient when key encumbrance lets one actor control voting across identity-verified wallets.",
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  "exactEvidenceQuote": "While whales splitting their tokens across Sybil accounts is a known attack on quadratic voting systems, identity systems alone (ensuring one user, one account to negate Sybils) are insufficient in the presence of key encumbrance.",
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