ECHO
Prototype. The flow you see is simulated; nothing here is live and nothing moves money.

Sources

Every claim and data surface this site cites, so nobody has to take our word for it.

reported · Live now

SolonPad

Live trend — no single date

Observed live in the latest scan across 1 source(s).

Sources

Wave evidence — SolonPad

Claims

  • Arc mainnet is live and Blockscout is its official block explorer from day one.
    Arc mainnet is live, and Blockscout is its official block explorer, powering the chain from day one.
    · source
  • On Arc, transaction fees are paid in USDC with no volatile native token.
    Gas in dollars. Fees are paid in USDC, with no volatile native token required.
    · source
  • Arc is fully EVM-compatible so existing Solidity contracts and developer tools work on day one.
    Arc is fully EVM-compatible, so existing Solidity contracts and developer tools work on day one.
    · source
  • Arc has deterministic sub-second finality.
    Sub-second finality. Deterministic, instant settlement. Final means final.
    · source
  • Anvil runs in-memory and supports forking from any EVM-compatible chain.
    It runs entirely in-memory and supports forking from any EVM-compatible chain.
    · source
  • Anvil's --fork-block-number fetches state from a specific block number over a remote endpoint.
    Fetch state from a specific block number over a remote endpoint.
    · source
  • Circle states that local Anvil or a standard EVM fork does not reproduce Arc's precompiles, EIP-7708 logs or blocklist enforcement.
    Local Anvil or a standard EVM fork is useful for ordinary contract tests, but it does not reproduce
    · source
  • Circle ships Arc Foundry, an Arc-enabled Foundry fork providing arc-forge, arc-cast and arc-anvil for local testing against Arc's EVM semantics.
    Arc Foundry is an Arc-enabled Foundry fork that provides arc-forge, arc-cast, and arc-anvil for local testing
    · source
  • Arc Foundry installs its binaries under an arc- prefix (arc-forge, arc-cast, arc-anvil) so it can sit beside upstream Foundry.
    To keep Arc Foundry side by side with upstream Foundry, its binaries are installed under an
    · source
  • Forking with Arc Foundry needs no Arc-specific configuration because it recognises the chain ID.
    Forking needs no Arc-specific configuration
    · source
  • On a standard Anvil fork of Arc, balance reads and approvals work but transfer and transferFrom revert because the native-USDC balance move needs Arc-specific execution support.
    Balance reads and approvals work on a standard Anvil fork, but
    · source
  • Arc's minimum base fee is 20 Gwei and transactions with a lower maxFeePerGas are silently dropped by the mempool.
    The minimum base fee is 20 Gwei.
    · source
  • A native USDC transfer on Arc can revert even when the sender has a sufficient balance, because of blocklist or zero-address rules.
    A native transfer can revert even with a sufficient balance, for example because of the blocklist or zero-address rules
    · source
  • USDC on Arc has two interfaces (18-decimal native and 6-decimal ERC-20) that share the same underlying balance.
    USDC on Arc has two interfaces that share the same underlying balance
    · source
  • Every USDC send, ERC-20 transfer, mint and burn on Arc emits a Transfer log at 18 decimals, so native buyer flow is readable from logs.
    Every USDC send, ERC-20 transfer, mint, and burn emits a
    · source
  • Arc's protocol capacity is 30M gas per block at a 0.5 second block time.
    30M gas/block (~60M gas/sec at 0.5 s block time)
    · source
  • Because Arc blocks land roughly every half second, the standard non-archive retention threshold covers only about a minute of history, so forking at an older block requires an archive endpoint.
    that threshold covers only about a minute of history
    · source
  • QuickNode's Arc endpoints are backed by archive data for full historical reads.
    backed by globally distributed infrastructure and archive data for full historical reads
    · source
  • Without the paid parameters, the CoinGecko/GeckoTerminal pool trades endpoint returns only the last 300 trades from the past 24 hours.
    Without them, the endpoint returns the last 300 trades from the past 24 hours.
    · source
  • The trades endpoint's trading_period, cursor and per_page parameters require the Analyst plan or above.
    Analyst plan & above
    · source
  • OHLCV history on Analyst and above reaches September 2021 to present, while the basic tier is limited to the past 6 months.
    September 2021 to present (depending on pool tracking start)
    · source
  • The New Pools by Network endpoint includes only pools created within the past 48 hours.
    Includes pools created within the past 48 hours.
    · source
  • The GeckoTerminal public API rate limit is 30 calls per minute.
    The current rate limit for the Public API is set at 30 calls per minute.
    · source
  • GeckoTerminal indexes Arc under the network key `arc` and lists the launchpads as separate DEXes including o1 Launchpad (Arc), Aka.fun and Minara.fun alongside Uniswap V4 (Arc).
    o1 Launchpad (Arc)
    · source
  • New Uniswap v4 pools are being created on Arc continuously right now and are returned by the new_pools endpoint for network arc.
    uniswap-v4-arc
    · source
  • DefiLlama merged Arc mainnet fees, revenue and curve-volume adapters for SolonPad, a USDC-native launchpad with two independent launch mechanisms, on 2026-09-17.
    Adds Arc mainnet adapters for SolonPad, a USDC-native launchpad with two independent launch mechanisms.
    · source
  • SolonPad's factory was deployed on Arc on 2026-09-14.
    Start date: 2026-09-14 (factory deploy).
    · source
  • SolonPad's instant-v4 mode has been the default launch path since 2026-09-16.
    Instant-v4 mode (default launch path since 2026-09-16)
    · source
  • SolonPad's own adapter test run reported a daily bonding-curve volume of 188.49, so the launchpad is live but very small.
    Daily volume: 188.49
    · source
  • SolonPad is a launchpad on Arc where tokens launch either straight into permanently locked Uniswap v4 pools or through a Pons V2 bonding curve that graduates into v4.
    Launchpad on Arc where tokens launch either straight into permanently locked Uniswap v4 pools (default) or through a Pons V2 bonding curve that graduates into v4.
    · source
  • SolonPad's TVL is defined as USDC in non-graduated native-USDC bonding curves plus the USDC principal side of permanently locked Uniswap v4 launch positions held by the FeeSplitter.
    TVL = USDC held in non-graduated native-USDC bonding curves + the USDC principal side of the permanently locked Uniswap v4 launch positions held by the FeeSplitter.
    · source
  • The canonical Uniswap v4 PoolManager on Arc is 0x8366a39CC670B4001A1121B8F6A443A643e40951.
    0x8366a39CC670B4001A1121B8F6A443A643e40951
    · source
  • On Arc, USDC is the native gas token with dual representation: 18-decimal native and a 6-decimal ERC-20 interface predeploy at 0x3600000000000000000000000000000000000000.
    USDC is the native gas token with dual representation: 18-decimal native and a 6-decimal ERC-20 interface predeploy at
    · source
  • New o1 Launchpad launches on Arc currently have no anti-snipe surcharge and pay the normal 1% fee from launch, unlike the other chains it supports.
    New Arc launches have no anti-snipe surcharge and pay the normal 1% fee from launch.
    · source
  • o1 Launchpad's launch-planning screen shows the deployer the creation fee, base swap fee, fee currency and anti-snipe schedule before launching.
    current creation fee, base swap fee, fee currency, and anti-snipe schedule
    · source
  • Tenderly shipped Historical Replay, which forks Ethereum Mainnet at any past block to recreate historical conditions and backtest a financial strategy.
    Fork Ethereum Mainnet at any past block to recreate historical conditions and backtest your financial strategy.
    · source
  • An open-source Uniswap V3 Simulator exists that simulates Uniswap v3 pool behaviour locally for launch analysis.
    The Uniswap V3 Simulator is a comprehensive tool designed to simulate the functionality of Uniswap V3 pools locally.
    · source
  • The Blockscout Pro API gives programmatic access to everything the Arc explorer shows, including decoded event logs, scoped by chain id 5042.
    The Blockscout Pro API gives you programmatic access to everything the explorer shows
    · source
  • The Blockscout REST API uses keyset pagination and returns 50 results per page by default.
    Blockscout uses the keyset pagination method to quickly return results.
    · source
  • Circle's open-source arc-node can launch a full local Arc testnet with 5 execution nodes, 5 consensus nodes and Blockscout.
    Launch a full local testnet with 5 execution nodes, 5 consensus nodes, plus Prometheus, Grafana, and Blockscout
    · source
  • On Arc the base fee is paid to the block beneficiary rather than burned.
    The base fee is paid to the block beneficiary, not burned.
    · source
  • ArcTools Terminal covers every Arc launchpad with one-click buys and live analytics, and offers no simulation or backtesting.
    one-click buys on every Arc launchpad
    · source
  • aka.fun is an RWA-powered launchpad on Arc.
    RWA-Powered Launchpad on Arc
    · source
  • Doppler is a liquidity bootstrapping protocol built on top of Uniswap v4 with a dutch-auction dynamic bonding curve driven by deployer-set parameters.
    Doppler is a liquidity bootstrapping Protocol built on top of Uniswap v4.
    · source
  • Assuming 6 decimals for Arc's native asset overstates every balance by a factor of a trillion, so a replay harness must convert explicitly.
    and it overstates every balance by a factor of a trillion
    · source
  • Upstream forge cannot execute USDC transfers on Arc, so a test suite built on upstream Foundry skips those cases.
    upstream forge cannot execute USDC transfers on Arc; the suite skips there
    · source
  • Arc mode in Arc Foundry is selected per profile, for example FOUNDRY_PROFILE=arc arc-forge test.
    FOUNDRY_PROFILE=arc arc-forge test
    · source
  • Hyperlane's CLI added support for Arc forks by selecting Circle's arc-anvil executable instead of standard Anvil.
    support Arc forks with Arc Anvil
    · source
  • Circle shipped Arc Studio, an onchain coding agent that generates contracts and deployment-ready code for Arc.
    Arc Studio is an onchain coding agent that takes ideas to implementation faster
    · source
  • Anvil exposes anvil_impersonateAccount to send transactions from any account without its private key.
    Impersonate any account to send transactions without its private key
    · source
  • Anvil exposes evm_setNextBlockTimestamp to control the timestamp of the next block, which lets a replay space a trade tape across a simulated hour.
    Set next block timestamp
    · source
  • Arc block timestamps are non-decreasing rather than strictly increasing, so first-hour trade ordering must be reconstructed by block and log index.
    Block timestamps are non-decreasing, not strictly increasing.
    · source
  • Arc runs roughly half-second blocks, so one replayed first hour spans about 7200 blocks.
    blocks landing roughly every half second
    · source