Community nodes

An RPC endpoint is not a node: one address can front a whole fleet of them, and none of these publish a peer list, so they cannot be counted alongside the census above. What can be checked is what each one serves. BDAGScan's nodes run the older protocol and cannot peer with ours, which is why they never appear in the node list — this is the only view we have of that side of the network.

• Chain is decided by hash, never by height. Every endpoint is asked for the block at a settled height well below both heads, and the answers are compared. Matching hashes mean one chain; different hashes at the same height mean a fork, whatever the heights say.
• These heights are EVM block numbers, which is a different count from the DAG main-chain height in the node list above. Compare them with each other, not with the table above.

Our own nodes are asked every two minutes for their full peer table, and the answers are merged over time. Node addresses are gossiped to every participant in the peer-to-peer network, so nothing here is private.

• Status — online means the node was connected to ours within the last hour. Reachable means it is not connected to us but still accepts connections on the port it advertises. Quiet means we know of it but cannot currently reach it.
• Block height is the node's own report of its main-chain tip, taken the last time it was connected to us. Last contact is when that was — never means the node is only known to us through another peer's address book.
• Sync compares that height with the best tip any node reported in the last hour. Within 64 blocks counts as in sync, because the DAG moves while the census is being taken. A node we have not spoken to recently is shown as no recent reading rather than guessed at — a stale height is not evidence of a problem.
• Nodes behind NAT are invisible. Only nodes accepting incoming connections can be discovered, so the real network is larger than this list. One operator may also run several nodes; identities are per-installation, so this counts nodes, not people.