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feat: add payment channel state machine and protocol spec - #893

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Calebux merged 1 commit into
Calebux:mainfrom
JoyAdah:feat/payment-channel-protocol-spec-843
Jun 23, 2026
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feat: add payment channel state machine and protocol spec#893
Calebux merged 1 commit into
Calebux:mainfrom
JoyAdah:feat/payment-channel-protocol-spec-843

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@JoyAdah

@JoyAdah JoyAdah commented Jun 23, 2026

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Summary

  • Designed the full lifecycle protocol specification for Stellar-based payment channels
  • Documented state machine with all transitions (Open → Active → Closing → Closed)
  • Added sequence diagrams for cooperative close, unilateral close, dispute resolution, and top-up flows
  • Defined time-lock parameters (dispute window, channel expiry, minimum capacity)
  • Verified dispute resolution soundness (latest state always wins via sequence number ordering)

Closes #843

Test plan

  • Review all state transitions for completeness (preconditions and postconditions documented)
  • Verify dispute resolution soundness logic (higher sequence number always wins)
  • Confirm time-lock parameter values are appropriate for Stellar block times
  • Validate state format matches existing PaymentChannel interface in client/lib/payment-channel.ts

🤖 Generated with Claude Code

Design the full lifecycle protocol specification for Stellar-based
payment channels used for private recurring subscription payments.
Includes state machine diagram, sequence diagrams for all flows
(cooperative close, unilateral close, dispute, top-up), time-lock
parameters, and dispute resolution soundness analysis.

Closes Calebux#843

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@JoyAdah
JoyAdah requested a review from Calebux as a code owner June 23, 2026 21:00
@drips-wave

drips-wave Bot commented Jun 23, 2026

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@JoyAdah Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits

@Calebux
Calebux merged commit 2caacd3 into Calebux:main Jun 23, 2026
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[P1] Channels: Design payment channel state machine and protocol spec

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