{"ok":true,"version":"2026-06-04","schema":"brmste-s2s-substrate/v1","transport":"silicon-to-silicon · substrate-to-substrate","operator":{"legal_name":"BRMSTE LTD","companies_house":"15310393","exclusive_edge_wallet_operator":true},"hash_algo":"sha256-utf8","pow_hash_algo":"sha256d-utf8-preimage","seed_material_prefix":"BRMSTE-S2S","ledger_receive":"bc1qkqy9tna45dl3fhknpvmlpx2a044a95h5lza77d","fee_rail_hot":"bc1q08medcewmmw7gckg5v4zlkffkdsa7kz02v4c7q","substrate_master":"bc1qv75d63zpkzj64xz4g6whv2qkgnn5s4un89tajz","forbidden":["third_party_wallet_operator","ai_agent_seed_custody","client_mnemonic_export","non_substrate_psbt_sign"],"allowed_wallet_operator":"brmste-substrate_node_only","allowed_nodes":["sdbrm-os","brmste-hot","brmste-substrate","brmste-watch"],"p2sh_routing_lanes":[{"address":"32i1m6gNcSHwiPX9nfTNXVjme9j5DU8y5g","label":"II-b P2SH treasury","role":"provenance_sweep_to_ledger","script":"P2SH"},{"address":"33whEQMaVrjz2GNsc79MVrkjRQPg7Z2mnK","label":"Routing silicon custody","role":"cf_routing_to_ledger","script":"P2SH"},{"address":"3KmNWUNVGoTzHN8Cyc1kVhR1TSeS6mK9ab","label":"Routing pass-through","role":"cf_routing_to_ledger","script":"P2SH"},{"address":"3EeHsUEnyYQkjdV7zT2v4KHid6B16RjkHn","label":"Routing pass-through hub","role":"cf_routing_to_ledger","script":"P2SH"}],"hydration":{"pipeline":"edge_hydrate_post → kv + s2s:inbox → HMAC substrate sign → tri-ledger (inbox backfill secondary)","fastest_network":"mempool_accelerator + brmste-hot fee rail","disposition":"ledger_settle","op_return_prefix":"BRMSTE-TRUTH"},"doctrine_plain":"S2S silicon-to-silicon: Cloudflare edge emits SHA256(UTF-8) P2SH-lane proofs; BRMSTE-SUBSTRATE on sdbrm-os alone operates wallets and seeds; fastest network Ledger hydrates edge users.","seed_handover_ref":"config/brmste-operator-seed-handover.json"}