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Tax Deductible Bug Bounties for Bitcoin

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Incentivize the research, development, and vetting of Bitcoin Improvement Proposals by implementing a system for crowdsourcing tax-deductible bug bounties, and distributing them to bounty winners.

Open BIP Bounties

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BIP - 119

OP_CHECKTEMPLATEVERIFY (CTV)

Jeremy Rubin
Total Bounty Up To: 5.3 BTC
5.1 - .53 BTC p/ vulnerability

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Our mission is to support the open source development of Bitcoin

We do this by incentivizing the research, development, and vetting of Bitcoin Improvement Proposals by creating a system for crowdsourcing tax-deductible bug bounties, and distributing them to bounty winners.

Types of rewards

- Showstopper

Major

Minor

Review

Out of Scope

High Quality Reviews

PoC / Designs

Showstopper

50% - 100% of remaining funds out of initial pool. min 0.5 BTC

There is a fundamental issue with CTV in either the spec or the reference implementation that makes it unsafe for inclusion to Bitcoin. Examples of such an issue:

  • Coin Theft: It's possible to construct a witness to a CTV-using Output such that the funds can move in an unintended manner.

  • DoS: Transactions or blocks that take longer than 1 minute to validate as a consequence of CTV

  • TXID-instability: in the narrow carve out where predicting TXIDs should work (single input CTV from a known output), one is able to malleate the TXID in a way that would break non-interactive lightning channels
Invalid CTV transactions stuck in mempool with standard flags after activation, leading to an invalid mineable block template. Severity would be assessed higher if this issue were unique to CTV and not something previous soft forks also had, but this would be treated as severe.

Meet the team

Jeremy Rubin
Founder & CEO of Judica, Author of BIP-119
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