How the chain gets read

Sources and trust levels

Every panel carries one of four marks. They say where a figure came from, not whether it is right.

• live read by your browser from the source when the page loaded, with the time shown.
• stored the last reading the site's own script took and saved, with its time. Shown first so the page is never blank, replaced by live figures where the source allows browser reads.
• third party a figure produced by someone else's system that we cannot yet reproduce on-chain. Today that is RadarDEX, because the mainnet RPC is closed.
• hand-logged checked by a person, dated, typed in. No API exists. Gaps in the series are gaps.

Official sources for chain facts: arc.io, docs.arc.io, community.arc.io, the Circle pressroom, and github.com/circlefin, in particular the arc-node repository. Nothing about Arc itself is stated on this site from any other source. Third-party and unofficial material is used only for the ecosystem ledger and is labelled.

What is never linked: unofficial RPCs, unofficial bridges, wallet "add network" buttons, or guides that contain any of those. Where a project in the ledger is named, we link its own site only if we have read it; we do not link Telegram groups.

Countdown and gate status

The countdown runs to 00:00 UTC on 16 September 2026, the public mainnet date Circle announced on 5 August 2026. Circle has not published a time of day. The progress bar runs from that announcement to launch.

Gate status has four cells, each checked by hand and dated: mainnet (is the official RPC answering the public), public bridge (is Circle's attestation service completing CCTP messages to domain 26), explorer (is Circle's Blockscout instance readable without sign-in), deployment (has Circle opened permissionless deployment). The freeze-key and genesis cells are read live from the repo, defined below.

Genesis watch

Read from assets/mainnet/config.json and assets/mainnet/genesis.json in circlefin/arc-node on every page load.

• Placeholder coinbase. The config's block coinbase is 0x3141592653589793238462643383279502884197, the digits of pi. That is a placeholder. When it changes the genesis is being finalised.
• Placeholder timestamp. The config's timestamp is in the past. A final genesis carries the launch time.
• Freeze keys. The USDC contract's blacklister, pauser and master minter are all the zero address in the config. The commit that assigns real addresses both signals launch and reveals the freeze wallet. On Arc, USDC is the gas, so a freeze stops a wallet outright with no fallback asset.
• Counts. Validators in config, predeployed system contracts (the genesis alloc), and prefunded addresses (alloc entries with non-zero balance) are counted directly from the files.

Testnet

Figures come from the official testnet Blockscout API at testnet.arcscan.app, chain 5042002. Transactions today, total transactions, addresses, blocks, average block time, gas price and utilisation are its stats endpoint; contract counts are its counters endpoint. We do not filter sybil or faucet traffic because we cannot identify it reliably and would rather show an inflated true count than a deflated invented one.

Behind the gate: the RadarDEX panels

RadarDEX publishes a JSON list of tokens it tracks on the gated mainnet, read through its own RPC list. Its API returns at most 500 tokens per request; the site records both the scanner's total and the number returned, and every derived figure is computed over the returned set only.

• Holder positions is the sum of the scanner's holder count across returned tokens. It is positions, not people; one wallet holding ten tokens is ten positions.
• Launchpad share groups tokens by the scanner's launchpad tag. Untagged tokens are "direct". Share is by holder positions, not token count, because a pad that deploys a thousand dead tokens should not lead the table.
• Wash ratio is 24 hour volume divided by USDC liquidity. Per token it uses that token's own figures; chain-wide it divides total returned volume by the scanner's total liquidity. It is a cheapness-of-volume indicator, not a verdict; a ratio above 2 is highlighted, nothing more.
• Serial deployers counts tokens per deployer address from the scanner's deployer field.
• Most held is ranked by holder count only. Volume is the cheapest figure to manufacture and is never used to rank.

None of these figures is verified on-chain by us. When the public RPC opens the same derivations will be recomputed from Transfer logs and pool reserves via a self-verified RPC, and the scanner's numbers will be compared against them here.

OTC premium log

Ayoo runs an order book for Arc-mainnet USDC settled in USDG on Robinhood Chain. There is no API, so the cheapest ask is read by a person and logged with the time. Premium is the ask minus one. Nothing is interpolated between logged points. This series ends when the public bridge opens, at which point the premium is by definition zero.

The ledger

Each row records what could be found on a date: verified contract source on an official explorer, a named person or legal entity, a live or planned fee-earning token, an LP lock verifiable on the explorer, and a mention by Circle. A blank means not found or not checked; it is never converted into a score. The ledger is re-checked in full when the public explorer opens.

The checker

Read-only JSON-RPC from your browser to the endpoint you paste: chain ID, block zero, code at Arc's reserved USDC address, latest block, and block time over the last hundred blocks. It compares against the parameters in Circle's repo. It cannot distinguish Circle's chain from a fork of the same genesis; only a final genesis hash from Circle can, and none exists yet. The page says so above the results, every time.

What this site does not do

• No price is estimated, carried forward, blended or substituted to close a gap.
• No token is rated, recommended, or called. Holder counts and evidence columns are published; the reader decides.
• No affiliation is claimed with Circle, Arc, or any project. Circle's trademarks are not used. The chain ID is the site's only identity.
• No unofficial RPC, bridge or guide is ever linked, embedded or endorsed.

Changes

Date	Change
2026-09-04	Method v0 published with the site, twelve days before public mainnet.