OpenChainGraph Suite · CONTRACT A3 · arch #5

Tempo Agentic Checkout

W-D chain. x402/MPP protocol decode → TIP-20 settlement mapper.

OpenChainGraph · 2 Steps settlement mandate Hash-Anchored §4 chain_depth:2 Client-Side · Zero PII
Chain Topology — x402 Header Decoder, Payload Linter & 402 Flow Simulator → Tempo Agentic Checkout Settlement Mapper
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Chain Stages · 2 Steps
1 ROOT · D0 node
x402 Header Decoder, Payload Linter & 402 Flow Simulator art-26-x402-payload-decoder-flow-simulator
protocol_decode and payment_details feed Stage 2 TIP-20 settlement mapping
MCP Call · simulate_x402_flow
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "simulate_x402_flow",
    "arguments": {}
  },
  "id": 1
}
2 TERMINAL · D2 node
Tempo Agentic Checkout Settlement Mapper art-40-tempo-agentic-checkout
Exports TIP-20 settlement artifact with execution_hash; memo → remittance_information crosswalk -- final stage
MCP Call · map_tempo_settlement
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "map_tempo_settlement",
    "arguments": {}
  },
  "id": 1
}
Export Artifacts
Download the §4 chain definition artifact (hash-anchored composite JSON) or the §13.11 W3C Verifiable Credentials view. Both derive from the chain definition — no new hash is minted. Available after hash computation.