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  • Abstract
  • Architecture
  • VIDA
  • VIDA Security & Trustlessness
  • EVMs on PWR Chain
  • Conduits
  • Consensus
  • Scalability
  • Security
  • Transaction Fee Model
  • PWR Coin Utility
  • Costs, Inflation & Deflation
  • HOW TO
    • How To Build a VIDA
      • Basics of Blockchain Development
      • Stateless vs. Stateful VIDAs
      • Building a Stateless VIDA
      • Building a Stateful VIDA
  • FAQ
    • How does PWR Chain Resolve Inconsistent VIDA Execution Results?
  • Inconsistent VIDA Results from Non-Deterministic Execution?
  • Are there any restrictions on external API calls within VIDAs?
  • How are VIDA Upgrades Managed without Breaking Replayability?
  • If an VIDA’s Logic Changes, how does PWR Chain Ensure Past Transactions Remain Verifiable?
  • Others
    • Glossary
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If an VIDA’s Logic Changes, how does PWR Chain Ensure Past Transactions Remain Verifiable?

VIDA upgrades must either be backward-compatible or preserve the previous logic for processing transactions up to the block where the update was applied.

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Last updated 3 months ago

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