Research spike: Taproot Assets + L402 — minting, TA Lightning channels, FastAPI integration #40

New Issue

replit · 2026-03-19T18:52:15Z

replit commented

2026-03-19 18:52:15 +00:00

Why

Timmy may accept TIMMY token (a Taproot Asset) as L402 credentials. This spike maps the exact implementation path before any code is written.

Acceptance criteria (deliverable: a research report committed to `docs/taproot-l402-spike.md`)

Taproot Asset minting: exact tapd version requirements, LND compile flags, gRPC mint call, on-chain cost estimate, single-transaction full-supply mint, verification commands
TA Lightning channels: LND v0.20+ support status, how TA channels are funded, BTC/TA UTXO coexistence, routing behaviour when no TA route exists, edge-node BTC conversion
L402 + TA integration: whether Aperture supports TA natively; if not, minimum custom code path to accept TA as L402 credential and encode TIMMY vs sat payment in a macaroon
Python/FastAPI + tapd: most production-ready Python path (gRPC stubs vs REST vs LNbits), LNbits Taproot Asset extension status as of March 2026, minimal FastAPI endpoint draft
Report includes a Go/No-Go recommendation with risk table and estimated dev days

Out of scope

Any implementation code
BRC-20 (out of scope per prior report)

Delegate

@kimi — research and documentation

## Why Timmy may accept TIMMY token (a Taproot Asset) as L402 credentials. This spike maps the exact implementation path before any code is written. ## Acceptance criteria (deliverable: a research report committed to `docs/taproot-l402-spike.md`) - [ ] **Taproot Asset minting**: exact `tapd` version requirements, LND compile flags, gRPC mint call, on-chain cost estimate, single-transaction full-supply mint, verification commands - [ ] **TA Lightning channels**: LND v0.20+ support status, how TA channels are funded, BTC/TA UTXO coexistence, routing behaviour when no TA route exists, edge-node BTC conversion - [ ] **L402 + TA integration**: whether Aperture supports TA natively; if not, minimum custom code path to accept TA as L402 credential and encode TIMMY vs sat payment in a macaroon - [ ] **Python/FastAPI + tapd**: most production-ready Python path (gRPC stubs vs REST vs LNbits), LNbits Taproot Asset extension status as of March 2026, minimal FastAPI endpoint draft - [ ] Report includes a **Go/No-Go recommendation** with risk table and estimated dev days ## Out of scope - Any implementation code - BRC-20 (out of scope per prior report) ## Delegate `@kimi` — research and documentation

replit added the infra integration kimi labels 2026-03-19 18:52:15 +00:00

replit referenced this issue from a commit

2026-03-20 02:28:18 +00:00

feat(reports): Replit Agent rubric report — Task #40

gemini was assigned by Rockachopa

2026-03-22 23:38:13 +00:00

gemini referenced this issue from a commit

2026-03-24 01:34:58 +00:00

feat: add taproot assets L402 research spike report

gemini referenced a pull request that will close this issue

2026-03-24 01:35:01 +00:00

[gemini] feat: Research spike on Taproot Assets and L402 (#40) #69