Contract Reference
RPCDataService is deployed on Arbitrum One at 0xA983b18B8291F0c317Ba4Fe0dc0f7cc9373AF078.
It inherits Horizon’s DataService + DataServiceFees + DataServicePausable and implements IDataService.
Functions
register(serviceProvider, data)
Registers a new provider.
data:abi.encode(string endpoint, string geoHash, address paymentsDestination)- Validates: provision ≥
minimumProvisionTokens, thawing period ≥minimumThawingPeriod - Sets
paymentsDestination[serviceProvider](defaults toserviceProviderif zero address) - Emits
ProviderRegistered
setPaymentsDestination(destination)
Changes the GRT recipient for collected fees. The new address takes effect on the next collect() call. Callable by a registered provider or their authorised operator at any time.
startService(serviceProvider, data)
Activates a provider for a specific chain and tier.
data:abi.encode(uint64 chainId, uint8 tier, string endpoint)- Validates:
chainIdinsupportedChains, provider registered, provision meets per-chain minimum - Emits
ServiceStarted
stopService(serviceProvider, data)
Deactivates a provider for a (chainId, tier) pair.
deregister(serviceProvider, data)
Removes the provider from the registry. Must stop all active services first.
collect(serviceProvider, paymentType, data)
Redeems a signed RAV for GRT.
data:abi.encode(SignedRAV, tokensToCollect)- Reverts with
InvalidPaymentTypeifpaymentType != QueryFee - Calls
GraphTallyCollector.collect()— verifies EIP-712 signature, tracks cumulative value - Routes GRT to
paymentsDestination[serviceProvider] - Locks
fees × STAKE_TO_FEES_RATIOvia_lockStake()(releases afterminThawingPeriod)
addChain(chainId, minProvisionTokens) / removeChain(chainId)
Owner-only chain allowlist management. minProvisionTokens = 0 uses the protocol default (10,000 GRT).
setMinThawingPeriod(period)
Governance setter. Lower-bounded by MIN_THAWING_PERIOD (14 days).
slash(serviceProvider, data)
No-op — reverts with “slashing not supported”. Present to satisfy the IDataService interface.
Parameters
| Parameter | Value | Notes |
|---|---|---|
| Minimum provision | 10,000 GRT | Governance-adjustable per chain |
| Minimum thawing period | 14 days | Governance-adjustable, lower-bounded |
| stakeToFeesRatio | 5 | Same as SubgraphService |