Introduction
BitTorrent has revolutionized file sharing, but it faces a persistent problem: seeding. Users often stop seeding after downloading a file, leaving it unavailable for others. Durabit tackles this issue with a clever incentive mechanism.
Durabit’s Solution
Durabit relies on a trusted party, called a chaumian ecash mint, to facilitate its incentive mechanism. The process involves:
- Pre-Signed Transactions: A sponsor funds the mint with a series of time-locked transactions that pay out bitcoin over a period of time.
- Torrent Swarm Monitoring: The mint monitors the torrent swarm for eligible seeders and connects with them.
- Chaumian Tokens: The mint issues chaumian tokens to registered seeders based on their contribution.
- Payout Redemption: Seeders can redeem their tokens for bitcoin at the end of each payment period.
Incentive Alignment
Durabit aligns incentives to ensure fairness and honesty:
- The sponsor wants to keep the file available and is penalized for dishonest actions.
- The mint has no incentive to hold onto payouts because the sponsor can revoke the transaction and prevent future payments.
- Seeders are rewarded for actively contributing to the torrent swarm.
Auditing Measures
Durabit incorporates auditing mechanisms to prevent abuse:
- Mint Auditing: The mint randomly challenges seeders to download specific chunks of the file to verify their possession.
- Sponsor Auditing: The sponsor monitors the torrent swarm traffic to assess the mint’s honesty.
Advantages of Durabit
Durabit offers several benefits:
- Promotes continuous seeding, even when demand subsides.
- Simple and transparent mechanism with minimal risk of malicious behavior.
- Easily adaptable to other file-sharing protocols.
Conclusion
Durabit is a groundbreaking solution that addresses the seeding challenge in BitTorrent. It provides an elegant and effective incentive mechanism that ensures the availability of files for future users. This innovation promises to revolutionize file sharing, making it more reliable and accessible.
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