Tip
Difficulty
Issuance
Computed from the block height by the subsidy schedule. These are not
measurements of the UTXO set: the coins actually spendable are fewer,
because the genesis coinbase, the two BIP30 duplicate coinbases and a
scattering of blocks that claimed less than they were owed were never
issued — under 200 BTC against 20.09M. gettxoutsetinfo
would measure that, but the node carries no coinstatsindex
and a difference this size does not warrant building one.
Mempool
Recent blocks, on a time axis
Reachable nodes
Only nodes that completed a peer-to-peer handshake and advertised the BLAKE2b service bit are counted. BTCS (SHA256) nodes are not included. Storage is read from the same advertised service bits: archival nodes offer the full chain, pruned nodes only recent blocks.
Implementation
Network
Storage
Country
Individual nodes
Detected nodes listed individually: — in the most recent crawl. Onion addresses are shortened to fit. Click one to copy the full address, or hover it to read the full address without copying. The complete addresses are also in nodes.json.
Checks port 8333 only. A node listening on any other port cannot be checked here and will not be reported as reachable. Attempts a peer-to-peer handshake with the address you enter and reports what that node advertised. Private, loopback and link-local addresses are refused. Onion addresses are checked over Tor: a v3 address is verified against its own checksum before any lookup is attempted, and if Tor cannot open a connection the result is reported as unknown rather than as the node being unreachable. Requests are rate limited per source address.