OpenChainGraph Suite · ART-107 · Wave 21

Tempo Fee-Sponsorship & Gas-AMM Economics

Model Tempo's enshrined-AMM gas cost in any major stablecoin plus server-paid fee sponsorship, vs card/SWIFT/ACH baselines. Distinct from Arc ERC-4337 Paymaster — Tempo has no native gas token and uses an enshrined protocol AMM.

Zero PII Client-side only Enshrined AMM Server Fee-Sponsorship Not ERC-4337 Wave 21
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Architecture note: Tempo uses an enshrined protocol-level AMM to settle gas fees in stablecoins — not the ERC-4337 Account Abstraction Paymaster architecture used by Arc (ART-46). Server-paid sponsorship here means the protocol operator absorbs a portion of the enshrined AMM gas cost, not a smart-contract paymaster.
Presets
Volume & Rail
Number of on-chain Tempo transactions per month
Used for sponsorship break-even calculation ($15,000/mo impl cost)
Fee-Stablecoin Mix & AMM Slippage

Weights must sum to 1.0. AMM slippage is in basis points (0 = no slippage vs USD).

USDC
USD1
USDT
PYUSD
Server-Paid Sponsorship
0 = user pays all gas; 1.0 = protocol pays all gas (full sponsorship)
Economics Summary
Effective Gas/tx (USD)
Saving vs Baseline/tx
Annual Saving (USD)
Sponsorship Break-Even (tx)
Cost Breakdown
Metric Value Notes
Rail Comparison
Rail Fee/tx (USD) Annual Cost (USD) vs Tempo
CFO Summary Memo
CFO Memo — Tempo Gas Economics
⚠ DECISION-SUPPORT TOOL. Model uses Tempo enshrined-AMM base gas cost ($0.0003/tx). Actual costs depend on network conditions, stablecoin liquidity, and protocol parameters. Not investment or financial advice.
Execution Hash & §4 Artifact
SHA-256 execution hash (JCS canonical, RFC 8785):