Phase 5 (#37): optional feeless Nano (XNO) settle leg for the credit top-up
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评估
- 难度
- 5/5
- 预计耗时
- 一周以上
- 新手友好度
- 38/100
- Issue 类型
- 功能
- 描述清晰度
- 基本清楚
- 活跃度
- 活跃
- 技术栈
- typescript
- 领域
- blockchain, payments
调研方向
Start with the Phase 5 credits-ledger design in #37 and the sequencing in epic #31, then review the existing top-up provider-verification entry point. The suggested scope is complete when nano:mainnet is opt-in and per-wallet, proof-of-send verification credits a ledger top-up row, and tests cover the adapter; Phase 6 seller accounting remains separate.
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描述
A feeless Nano (XNO) settle leg for the SkillX credits ledger (Phase 5, #37)
Hi, thanks for the skillx marketplace this is shaping into — the Phase 5 credits/orders design (#37) with its append-only buyer credit ledger and atomic debit+entitlement grant is exactly the seam a feeless settlement option could sit beside when you wire in the top-up provider.
Why this fits your roadmap
Your own sequencing in the epic (#31) is deliberate: make packages trustworthy, then installable, then "only then attach money and creator payouts." Phase 5 (#37) adds a buyer credit ledger topped up by "verified provider events" with quote/order/atomic-debit and agent-safe confirmation, and Phase 6 (#38) adds creator settlement. The top-up leg is the one place a network itself does the money movement.
The additive Nano (XNO) rail
A Native (Nano) transfer is a single self-custodied L1 block with:
- Zero fee on any amount — a 0.0001 XNO top-up costs the same $0 as a large one. If credits are per-skill micro-amounts, every other rail charges more in fees than the value that moves.
- Single-block deterministic finality. At check time the network's
block_countequalscemented(both 224,640,663), so a send is final in the next block with no multi-block confirmation wait. - No bridging and no approve step. The buyer signs directly to their own Nano account; the ledger can credit on a confirmed block hash they can verify themselves.
- Atomic debit that matches your model. A Nano send is one signed intent that either lands or does not — there is no partial state, which maps cleanly to your "atomic debit + entitlement grant" acceptance test and your no-double-debit rule.
Your Phase 6 "seller payable placeholder accounting separate from credits" is untouched: Nano only makes the settlement leg costless; your ledger, quotes, entitlements and refund policy stay exactly as designed.
Live evidence, checked moments ago
- Nano RPC
{"action":"block_count"}returns{"count":"224640663","cemented":"224640663"}— fully cemented frontier (rpc.nano.to). - A settled Nano x402 purchase verified earlier this week: block
E67FB89426F46E6AE4E0E5750B5F814A699965B8639DA89F38689EA1AFE57FC3,confirmed:true, amount 0.00001292 XNO, settled in a single block. @x402nano/exacton npm (v0.3.0, MIT) already implements the Nano x402 exact scheme if you want a programmatic payer for the CLI/agent path: https://www.npmjs.com/package/@x402nano/exact- Nano protocol docs: https://docs.nano.org/
Suggested scope
- Add
nano:mainnetas an accepted top-up asset behind your Phase 5 credit-ledger provider-verification gate. - Keep it opt-in and per-wallet; the credits ledger, quotes and entitlements remain your contract of record.
- If useful, I can open a PR adding a Nano settlement adapter against your Phase 5 spec (proof-of-send verification + ledger top-up row) with tests.
No action is required to test the rail yourself — the evidence block above is live on mainnet and verifiable at rpc.nano.to or nanexplorer.com.
- 主要语言
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