OpenChainGraph Suite · CONTRACT A3 · arch #5

Tempo Fee-Sponsorship & Gas-AMM Economics

Model Tempo's enshrined-AMM gas cost paid in any major stablecoin plus server-paid fee sponsorship, vs card/SWIFT/ACH baselines. Distinct from Arc Paymaster: Tempo has no native gas token and uses an enshrined AMM, not ERC-4337.

OpenChainGraph · 2 Steps treasury mandate Hash-Anchored §4 chain_depth:2 Client-Side · Zero PII
Chain Topology — Tempo Payment Economics → Tempo Gas Economics
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Chain Stages · 2 Steps
1 ROOT · D0 node
Tempo Payment Economics art-35-tempo-payments-business-case
volume, corridor mix, baseline fees feed Stage 2 gas economics
MCP Call · model_tempo_payment_economics
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "model_tempo_payment_economics",
    "arguments": {}
  },
  "id": 1
}
https://mcp.ainumbers.co/mcp
↓
2 TERMINAL · D2 node
Tempo Gas Economics art-107-tempo-gas-economics
Exports composite gas-economics artifact (blended gas cost, sponsorship break-even, per-tx saving) — final stage
MCP Call · model_tempo_gas_economics
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "model_tempo_gas_economics",
    "arguments": {}
  },
  "id": 1
}
https://mcp.ainumbers.co/mcp
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.