v0.1.0 — Cashu Ecash Mint + Privacy Sessions

ARFL v0.1.0

First tagged release. The protocol is functional end-to-end: purchase bandwidth with Lightning, receive unlinkable Cashu tokens, connect to VPN nodes without the hub knowing who you are.

Core Protocol

• WireGuard transport — encrypted tunnel between client and nodes (#2)
• Nostr discovery — decentralized node index via relay subscriptions (#3)
• Lightning payments — purchase bandwidth, settlement engine, node payouts (#5, #9)
• Chaumian blind signatures — RSA-based buyer-session unlinkability (#6)
• Cashu ecash mint — NUT-01 through NUT-07 compatible, BDHKE tokens (#17)
• Client integration — node selection, token splitting, Cashu redemption (#7, #18)
• Node-side Cashu gate — verify + redeem proofs for WireGuard access (#19)
• NIP-44 encrypted delivery — tokens delivered via Nostr, hub cannot read (#20)

Infrastructure

• Attestation system — hub-signed node leases with Schnorr proofs (#15)
• LND Lightning adapter — REST API integration with circuit breaker (#11)
• Docker Compose testnet — full local dev environment (#12)
• Hub revenue & earnings API — margin splits, node wallet management (#16)

Performance (Phase 14)

• Crypto benchmarks — VerifyProofs, SignBlinded, NIP-44 baselines (#26)
• pprof endpoint — localhost-only production profiling (#27)
• Load tested — 15,000 redeems/sec, double-spend protection verified (#28)
• Optimized VerifyProofs — 21% faster, 57% fewer allocations (#29)

Testing

• E2E integration test covering the full privacy chain (#21)
• STRIDE threat model tests
• Load test with scaling curve (1→100 concurrency)

Binaries

File	Arch	Size
arfl-hub-linux-amd64	x86-64	16 MB
arfl-node-linux-amd64	x86-64	15 MB

Verify checksums: sha256sum -c checksums.txt

Deployed

Live on 3 Vultr VPS servers (hub + entry + exit nodes).