V13-B DESIGN PLAN OPEN

V13-B External Anchor Design Plan

V13-A r1 closed the public evidence chain for proof-record inclusion and signed checkpoint consistency. V13-B opens the external anchor design layer. Bitcoin/OpenTimestamps are positioned only as external timestamp / anchor infrastructure, not as SafeGate payment rails.

V13-A public evidence chain: CLOSED
V13-B status: DESIGN_PLAN_OPEN
External anchor live: false
Production anchor claim: false
Bitcoin/OpenTimestamps role: external timestamp / anchor only
Payment rail: separated from anchor rail
V13-C Payment Commitment: deferred

Boundary: A Bitcoin/OpenTimestamps anchor does not mean Bitcoin payment support is live. V13-B only documents the external timestamp anchor path for signed SafeGate checkpoints. Payment truth remains separate and is deferred to V13-C payment commitment work.

Open V13-B External Anchor Design Plan

{
  "project": "SafeGate",
  "proofDesignStatus": "V13_PROOF_DESIGN_V13_B_EXTERNAL_ANCHOR_PLAN_LINKED",
  "v13AChain": "CLOSED",
  "v13BStatus": "DESIGN_PLAN_OPEN",
  "externalAnchorLive": false,
  "productionAnchorClaim": false,
  "bitcoinPaymentAdapterLive": false,
  "bitcoinUsedAs": "external_timestamp_anchor_only",
  "openTimestampsRole": "candidate_external_timestamp_proof_layer",
  "paymentRailSeparatedFromAnchorRail": true,
  "paymentTruthDeferredTo": "V13-C Payment Commitment",
  "safeGatePaymentProcessor": false,
  "safeGateCustody": false,
  "safeGateEscrow": false
}