Overview - Allium Documentation Hub

Arc is Circle’s Layer 1 blockchain for programmable payments and financial applications, using USDC as its native gas token.

More about Arc

Arc Tables

Our Arc data includes the following schemas and tables:

Schema	Description	Tables
Raw	Raw blockchain data.	blocks, contracts, erc1155_tokens, erc20_tokens, erc721_tokens, fungible_tokens, logs, traces, transactions
Decoded	Decoded event logs and traces data.	logs, traces
Assets	Token transfers, balances & credit debit data related to fungible and/or non-fungible assets.	erc1155_balances_daily, erc1155_balances_latest, erc1155_credit_debit, erc1155_token_transfers, erc20_credit_debit, erc20_token_transfers, erc721_balances_daily, erc721_balances_latest, erc721_credit_debit, erc721_token_transfers, fungible_balances, fungible_balances_daily, fungible_balances_latest, fungible_credit_debit, fungible_pnl_5min, fungible_token_transfers, native_credit_debit, native_token_transfers
DEX	Decentralized exchange activity data.	fees, pool_balance_changes_daily, pools, token_prices_hourly, trades, tvl_daily, uniswap_v4_events, uniswap_v4_hooks
NFTs	Non-fungible token (NFT) activity data.	mints, trades, transfers
Metrics	Pre-computed metrics of onchain activity.	overview, tvl_aggregate_daily, tvl_daily
Bridges	Cross-chain bridge activity data.	messaging_protocols_inbound_messages, messaging_protocols_outbound_messages
Lending	Lending protocol activity data including deposits, loans, liquidations, and repayments.	deposits, flashloans, interest_rates, liquidations, loans, markets_daily, metrics_daily, repayments, tvl_daily, withdrawals
Snapshots	Point-in-time snapshots of onchain state, including token balances and supply.	balances, token_supply
Stablecoins	Stablecoin supply, circulating supply, and non-circulating supply tracking data.	balances_daily, balances_latest, supply_change, supply_distribution_daily, transfers
Unhydrated	Raw balance snapshots without enriched token metadata or USD pricing.	erc1155_balances_eod, erc1155_balances_eod_delta, erc721_balances_eod, fungible_balances_eod

USDC on Arc: the stablecoin-native model

Arc uses USDC as its native gas token. USDC is represented on Arc as both a native token and an ERC-20 token, with one shared balance:

Interface	Address	Decimals
Native (EIP-7708 emitter)	`0xfffffffffffffffffffffffffffffffffffffffe`	18
ERC-20 face	`0x3600000000000000000000000000000000000000`	6

Allium serves the 18-decimal native form only, under the null address 0x0000000000000000000000000000000000000000. Both system addresses are canonicalised onto that address at ingestion, so USDC is complete there.

Find USDC in native_token_transfers, fungible_* and stablecoins under 0x0000000000000000000000000000000000000000, at 18 decimals.
erc20_token_transfers excludes both system addresses — their Transfer logs are native movement, already served as native transfers.
Arc has no wrapped-native (WETH-style) contract.

​Arc Tables

​USDC on Arc: the stablecoin-native model

Arc Tables

USDC on Arc: the stablecoin-native model