**Parent Proposal:** #112 **RFP ID:** RFP-003 **Team / Grantee:** Gateway **Milestone:** M3 — BTC-LEZ leg ### Deliverables - [ ] LEZ escrow program update for the BTC adaptor-witness path (Schnorr + Taproot key-path spend, witness-set-gated claim). - [ ] LEZ/BTC SDK with full lifecycle coverage. - [ ] DLC-specs `AdaptorSignature.md` test-vector conformance, with extended vectors for the swap-specific scenarios. - [ ] `bitcoind` testnet setup documentation per U8 (self-hosted + public-node options, configuration, wallet creation, obtaining testnet funds). - [ ] BTC demo set per D1. - [ ] Inline reference to Aumayr et al. and Fournier `one-time-VES` in the write-up. **Payout:** $45,500 **Duration:** 4 weeks (overlaps M2 from week 2 of M2) **Engineer-weeks:** 8 (Igor 4.5 cryptography lead / Ivan 3 / Elliot 0.5 review)
Parent Proposal: #112
RFP ID: RFP-003
Team / Grantee: Gateway
Milestone: M3 — BTC-LEZ leg
Deliverables
AdaptorSignature.mdtest-vector conformance, with extended vectors for the swap-specific scenarios.bitcoindtestnet setup documentation per U8 (self-hosted + public-node options, configuration, wallet creation, obtaining testnet funds).one-time-VESin the write-up.Payout: $45,500
Duration: 4 weeks (overlaps M2 from week 2 of M2)
Engineer-weeks: 8 (Igor 4.5 cryptography lead / Ivan 3 / Elliot 0.5 review)