# MeterCall L4 Litepaper

**Version 1.0 — April 21, 2026**
**Yoshi — Network: Base L2 — Token: PCP (1B fixed, zero inflation)**

## 1. The problem I lived

I ran nodes. A lot of them. The rich people with data centers won. Every time. The protocol said "decentralized." The reality was a handful of well-capitalized operators in three ASNs eating the rewards. That is not decentralization; that is a shell with rich-guy insides. Block production concentrates. RPC concentrates. Data centers eat the edge. The little guy pays fees and never earns them. MeterCall L4 exists because the person closest to the work should get paid for it, and Joe Schmoe with a Raspberry Pi in Tulsa should beat a data center in Ashburn when the caller is in Tulsa. Not metaphorically. Mathematically, because the cost function says so.

## 2. Why prior layers didn't fix it

L1s concentrate validators via staking pools and LSTs. L2s concentrate sequencers that are "decentralized later." L3s go app-specific and don't touch Web2. DePIN is closer in spirit but still ends up rewarding fleet capital. None of these compete on where the request is served from. They compete on block production and execution correctness. The actual bottleneck for real-world usage — 50ms to 400ms of physical network between a user and their answer — is treated as somebody else's problem, usually handled by three CDN companies. L4 treats that latency as the whole problem.

## 3. Architecture

L4 is an aggregation and routing overlay on Base. It does not produce blocks. It routes calls across three endpoint pools: 20M+ Web2 APIs, 30+ blockchains, and builder modules. Payment via x402. Signed routing receipts via EIP-712. Every call is priced and metered per invocation.

The scheduler picks nodes by minimizing a cost function over RTT to caller, RTT to endpoint, price, reputation, a +20% residential bonus, and a quadratic concentration penalty on ASN and geohash-5 cells. Default coefficients (governance-tunable): `α=1.0, β=1.0, γ=0.6, δ=0.8, ε=0.4, ζ=1.2`. Nodes in the same ASN as many other active nodes earn less per call: `weight = base / (1 + k·asn_share²) / (1 + k·geo_share²)`, `k=4`. At 20% ASN share, weight multiplier is 0.86. At 50%, it is 0.5. At 80%, it is 0.28. A hard cap stops any proven operator from earning from more than 50 nodes per 1,000-node window.

Gossip is epidemic, fanout 6, TTL 4, and carries only node advertisements, receipt hashes, and heartbeats. Anything larger is direct fetch or on-chain. Cross-chain calls go through a rotating 21-seat bridge-signer committee, epoch-based (12h), weighted by the same dilution curve, with per-ASN and per-geohash caps on committee composition. 2/3 signing threshold. Conflicting attestations are slashable.

## 4. PCP tokenomics

Fixed supply: 1,000,000,000 PCP. Zero inflation, ever. 30% of every PCP-denominated fee burns on settlement.

Allocation: 10% team (4-yr vest, 1-yr cliff), 30% community and airdrop combined, 20% treasury (DAO multisig), 20% launch liquidity (paired on Base, 2-yr lock), 15% ecosystem grants (milestone-release), 5% strategic (2-yr vest, 6-mo cliff).

Fee split after 30% burn: 60% serving node, 25% module creator, 10% treasury, 5% bridge signers on cross-chain. No module invoked, creator share rolls to the node. Stake is required for routing eligibility (10,000 PCP at S_min), slashable, with a 14-day unbond. Routing weight scales with sqrt(stake) — whales posting 100x get 10x weight, not 100x. Delegation is capped at 20x S_min per node to prevent single-node capture. Delegators share slashing proportionally.

## 5. Economic security

To corner 51% of routing weight, an attacker needs at least 10 distinct proven operator identities (50-node cap each), distributed across 10+ ASNs to avoid the dilution penalty, plus ~2x stake per node to offset ASN concentration if they cluster. Back-of-envelope: roughly 25M PCP in slashable stake plus the infrastructure cost of a geographically diverse fleet. At a conservative launch price, that is millions of dollars locked and exposed. Sybil resistance comes from ASN/geohash penalties that make rack-splitting pointless, residential proof gated by active probing from diverse vantage points, a 14-day unbond that exposes stake to receipt disputes, and a watcher network that re-fetches sampled calls and earns bounties from slashed stake. Network liveness is graceful: if most nodes go offline, surviving nodes raise price; callers set max-budget; no chain-halt mode exists because there is no chain to halt.

## 6. Roadmap

**Q2 2026:** Mainnet on Base, TGE, 48 seed nodes across 20 regions, 22 bridges, 30+ chains, first airdrop season, dispute and slashing contracts live.

**Q3 2026:** 1,000-node community target, builder module marketplace with 30/70 creator split, bridge-signer rotation live on-chain, DAO contracts deployed, treasury handover begins.

**Q4 2026:** Cross-L4 interop spec (peering with other aggregation layers), mobile node client (yes, phones; metered residential bonus), second airdrop season keyed to actual usage not wallet-sniping, scheduler reference implementation open-sourced.

**Beyond 2026:** scheduler decentralization into a P2P elected role, confidential-compute enclave support for regulated endpoints, proof-of-serving ZK circuits replacing optimistic disputes on hot paths, multi-L2 settlement redundancy.

## 7. Risks and open questions

Residential-ASN proof is a cost curve, not a proof. A determined VPS fleet behind residential proxies can fake it for a while; we rely on distributed active probing and economic cost to break even. The dilution constant `k=4` is calibrated against simulations; governance will move it. Bridge-signer committees remain the weakest link in all of crypto — we rotate, dilute, slash, and cap single-bridge TVL until we have data; a well-funded attacker coordinating 14 of 21 seats is a tail risk. L2 dependency is real; multi-L2 settlement is a Q4 target, not today. PCP is a utility token within a functional network, which is not a regulatory force field; team is doxxed to counsel, not to the public. Scheduler coefficients rotate to limit gaming, and tie-breaks keep randomness. TGE volatility is expected. PCP is a fee and governance token. Do not buy it for price. None of these risks is hidden. All of them can be checked against the code and the contracts.

## 8. How to participate

**Run a node.** Pull the container. Post 10,000 PCP. Declare endpoints. Earn per call. +20% if residential. Pi 5 or old laptop is fine.

**Stake/delegate.** Pick a node by uptime, reputation, ASN, commission. Share upside and downside. 14-day unbond.

**Build.** Deploy a module. Keep 30% of every call that hits it. Modules can compose Web2 APIs and blockchains through one signed program.

**Govern.** Hold PCP, vote coefficients, allocate grants, set bridge caps. Treasury is 200M PCP under a DAO multisig with a 48-hour proposal timelock.

**Watch.** Run a watcher node. Re-fetch sampled calls. File disputes on bad receipts. Earn a bounty from slashed stake. This is the most important role nobody talks about.

This is not a chain. It is a layer that makes every chain, and every API, reachable from one call, served by whoever is closest, owned by nobody who can big-time you. I lost to data centers once. Not again. — Yoshi