// Section 2.4 · Concepts
The On-Chain Anchor
What survives a hostile coordinator or node.
// 2.4 · on-chain anchor · three categories · each anchored for a different reason
The blockchain layer holds the data that has to survive a hostile coordinator or a hostile node. Three categories anchor there, each for a different reason.
Three anchor categories
// 2.4.1 · 2.4.2 · 2.4.3
A previous_hash-linked chain
ExecutionRecord entries form a previous_hash-linked chain. Each record commits a unit of work's request_id, unit_id, node_id, result_root (Merkle root of result chunks), and poe_v1 (the SHA-256 commitment). For AI inference the unit is the whole request; for a parallelizable workload it is one sub-task. Any modification to a past record breaks the chain at that point. A reader walking backwards can detect tampering without trusting any single party.
Standard ERC-20, fee-on-transfer extension
Standard ERC-20 on Ethereum mainnet, with the fee-on-transfer extension (§8.3). The contract holds no execution state beyond what every ERC-20 holds: balances, allowances, the FoT classifier allowlist, the tax-destination wallets, and the owner key. No task data, no operator data, no result data; those live in the execution records, not in the token contract.
Two live contracts, separate from $PRLX, permissionless
NodeRegistryLocker (0x7068…82b6) is the stake vault. Anyone calls registerNode(stakeAmount, hardwareTier, nodeKeyHash) at or above the 50,000 $PRLX floor; each call mints one independent nodeId (one stake equals one node), and a wallet may hold unlimited nodes. requestUnstake(nodeId) starts a 7-day cooldown, cancelUnstake aborts it, and withdrawStake(nodeId) returns the full principal after it elapses. No slashing, no slasher role.
OperatorStakeRewardsV2 (0x2669…84e3) is the streaming reward distributor. While a node is online its earned(nodeId) balance grows every block, weighted by stake × tier; the operator pulls it with claim(nodeId) to wei precision. Stake and rewards live in separate contracts, so the reward path never touches principal.
Gas economics
// 2.4.4 · l1 cost is real · batched commitment is the bridge
Note·L1 gas cost is visible, not hidden
Batched Merkle. Tight L1 gas budget.
On-chain throughput economics improve. Tighter freshness target.
Execution records move to L2. L1 anchors a periodic L2 state root.