handshake-node

command module
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Published: Jul 21, 2026 License: ISC Imports: 69 Imported by: 0

README

handshake-node

Build Status ISC License GoDoc

handshake-node is a Handshake (HNS) blockchain full node written in Go. It is a fork of btcd, but its target behavior is the Handshake network: Handshake block headers, proof-of-work, transactions, covenants, name state, P2P transport, mining, and RPCs.

This is not a Bitcoin node, and it does not include a wallet. Wallet software must manage keys, signing, coin selection, and wallet state externally.

Current Status

The current release is 0.2.2-rc1, a mainnet release candidate. It includes:

  • Handshake mainnet and regtest chain parameters.
  • Blake2b/SHA3 Handshake proof-of-work and 236-byte block headers.
  • Handshake transaction outputs with address and covenant data.
  • Name covenant validation, Urkel-backed name state, and name proof RPCs.
  • Brontide P2P transport with plaintext fallback for compatibility work.
  • Mempool, mining, getblocktemplate, coinbase proof handling, and a Stratum v1 MVP server.
  • Authenticated JSON-RPC, websocket notifications, unsigned covenant constructors, hnsctl, and rpcclient support.
  • hsd-compatible claim and airdrop proof relay, submission RPCs, and expanded operational RPC coverage.
  • Handshake bloom filtering and partial Merkle proofs compatible with hsd.
  • A resumable hsd parity runner and pinned interoperability/recovery tests for mainnet-readiness validation.
  • Full-block Handshake P2P service suitable for cdnsd indexing.

Requirements

Go 1.26.5 or newer. The module toolchain directive automatically selects a patched Go toolchain when supported.

Build

git clone https://github.com/blinklabs-io/handshake-node.git
cd handshake-node
make build

To install the node and command-line tools into your Go binary directory:

go install -v . ./cmd/...

Run

handshake-node

The daemon can start with no configuration, but production deployments should set explicit RPC credentials and review listener settings:

handshake-node \
  --rpcuser=myuser \
  --rpcpass=mypassword \
  --rpclisten=127.0.0.1:12037

Environment variables use the HANDSHAKE_NODE_ prefix, for example HANDSHAKE_NODE_RPCUSER and HANDSHAKE_NODE_RPCPASS.

Ports

Port Purpose
12038 Mainnet P2P
12037 Mainnet RPC
12039 Prometheus metrics, disabled by default
12040 Stratum, disabled by default

RPC is authenticated and TLS-enabled by default. Do not expose RPC, metrics, or Stratum listeners publicly without reviewing the security options in docs/configuration.md.

Test

make unit
make lint

Integration tests are run serially because the daemon harness allocates local ports:

go test -p 1 -v -tags=rpctest ./integration/...

Documentation

License

handshake-node is licensed under the copyfree ISC License. Upstream btcd-derived code is also ISC licensed.

Documentation

Overview

handshake-node is a Handshake full node implementation written in Go, forked from btcd.

The default options are sane for most users. This means handshake-node will work 'out of the box' for most users. However, there are also a wide variety of flags that can be used to control it.

The following section provides a usage overview which enumerates the flags. An interesting point to note is that the long form of all of these options (except -C) can be specified in a configuration file that is automatically parsed when handshake-node starts up. By default, the configuration file is located at ~/.handshake-node/handshake-node.conf on POSIX-style operating systems and %LOCALAPPDATA%\Handshake-node\handshake-node.conf on Windows. The -C (--configfile) flag, as shown below, can be used to override this location.

Usage:

handshake-node [OPTIONS]

Application Options:

    --addcheckpoint=        Add a custom checkpoint.  Format:
                            '<height>:<hash>'
-a, --addpeer=              Add a peer to connect with at startup
    --addrindex             Maintain a full address-based transaction index
                            which makes the searchrawtransactions RPC
                            available
    --banduration=          How long to ban misbehaving peers.  Valid time
                            units are {s, m, h}.  Minimum 1 second (default:
                            24h0m0s)
    --banthreshold=         Maximum allowed ban score before disconnecting
                            and banning misbehaving peers. (default: 100)
    --blockmaxsize=         Maximum block size in bytes to be used when
                            creating a block (default: 750000)
    --blockminsize=         Minimum block size in bytes to be used when
                            creating a block
    --blockmaxweight=       Maximum block weight to be used when creating a
                            block (default: 3000000)
    --blockminweight=       Minimum block weight to be used when creating a
                            block
    --blockprioritysize=    Size in bytes for high-priority/low-fee
                            transactions when creating a block (default:
                            50000)
    --blocksonly            Do not accept transactions from remote peers.
-C, --configfile=           Path to configuration file
    --connect=              Connect only to the specified peers at startup
    --cpuprofile=           Write CPU profile to the specified file
-b, --datadir=              Directory to store data
    --dbtype=               Database backend to use for the Block Chain
                            (default: ffldb)
-d, --debuglevel=           Logging level for all subsystems {trace, debug,
                            info, warn, error, critical} -- You may also
                            specify
                            <subsystem>=<level>,<subsystem2>=<level>,... to
                            set the log level for individual subsystems --
                            Use show to list available subsystems (default:
                            info)
    --dropaddrindex         Deletes the address-based transaction index from
                            the database on start up and then exits.
    --dropcfindex           Deletes the index used for committed filtering
                            (CF) support from the database on start up and
                            then exits.
    --droptxindex           Deletes the hash-based transaction index from the
                            database on start up and then exits.
    --externalip=           Add an ip to the list of local addresses we claim
                            to listen on to peers
    --generate              Generate (mine) coins using the CPU
    --limitfreerelay=       Limit relay of transactions with no transaction
                            fee to the given amount in thousands of bytes per
                            minute (default: 15)
    --listen=               Add an interface/port to listen for connections
                            (default all interfaces on the default port for
                            the active network)
    --logdir=               Directory to log output
    --maxorphantx=          Max number of orphan transactions to keep in
                            memory (default: 100)
    --maxpeers=             Max number of inbound and outbound peers
                            (default: 125)
    --miningaddr=           Add the specified payment address to the list of
                            addresses to use for generated blocks -- At least
                            one address is required if the generate option is
                            set
    --minrelaytxfee=        The minimum transaction fee in HNS/kB to be
                            considered a non-zero fee. (default: 1e-05)
    --nobanning             Disable banning of misbehaving peers
    --nocfilters            Disable committed filtering (CF) support
    --nocheckpoints         Disable built-in checkpoints.  Don't do this
                            unless you know what you're doing.
    --nodnsseed             Disable DNS seeding for peers
    --nolisten              Disable listening for incoming connections --
                            NOTE: Listening is automatically disabled if the
                            --connect or --proxy options are used without
                            also specifying listen interfaces via --listen
    --noonion               Disable connecting to tor hidden services
    --nopeerbloomfilters    Disable bloom filtering support
    --norelaypriority       Do not require free or low-fee transactions to
                            have high priority for relaying
    --norpc                 Disable built-in RPC server -- NOTE: The RPC
                            server is disabled by default if no
                            rpcuser/rpcpass or rpclimituser/rpclimitpass is
                            specified
    --notls                 Disable TLS for the RPC server -- NOTE: This is
                            only allowed if the RPC server is bound to
                            localhost
    --onion=                Connect to tor hidden services via SOCKS5 proxy
                            (eg. 127.0.0.1:9050)
    --onionpass=            Password for onion proxy server
    --onionuser=            Username for onion proxy server
    --profile=              Enable HTTP profiling on given port -- NOTE port
                            must be between 1024 and 65536
    --proxy=                Connect via SOCKS5 proxy (eg. 127.0.0.1:9050)
    --proxypass=            Password for proxy server
    --proxyuser=            Username for proxy server
    --regtest               Use the regression test network
    --rejectnonstd          Reject non-standard transactions regardless of
                            the default settings for the active network.
    --relaynonstd           Relay non-standard transactions regardless of the
                            default settings for the active network.
    --rpccert=              File containing the certificate file
    --rpckey=               File containing the certificate key
    --rpclimitpass=         Password for limited RPC connections
    --rpclimituser=         Username for limited RPC connections
    --rpclisten=            Add an interface/port to listen for RPC
                            connections (default port for the active network)
    --rpcmaxclients=        Max number of RPC clients for standard
                            connections (default: 10)
    --rpcmaxconcurrentreqs= Max number of concurrent RPC requests that may be
                            processed concurrently (default: 20)
    --rpcmaxwebsockets=     Max number of RPC websocket connections (default:
                            25)
    --rpcquirks             Mirror some JSON-RPC quirks of Bitcoin Core --
                            NOTE: Discouraged unless interoperability issues
                            need to be worked around
-P, --rpcpass=              Password for RPC connections
-u, --rpcuser=              Username for RPC connections
    --sigcachemaxsize=      The maximum number of entries in the signature
                            verification cache (default: 100000)
    --torisolation          Enable Tor stream isolation by randomizing user
                            credentials for each connection.
    --trickleinterval=      Minimum time between attempts to send new
                            inventory to a connected peer (default: 10s)
    --txindex               Maintain a full hash-based transaction index
                            which makes all transactions available via the
                            getrawtransaction RPC
    --uacomment=            Comment to add to the user agent -- See BIP 14
                            for more information.
    --upnp                  Use UPnP to map our listening port outside of NAT
-V, --version               Display version information and exit
    --whitelist=            Add an IP network or IP that will not be banned.
                            (eg. 192.168.1.0/24 or ::1)

Help Options:

-h, --help           Show this help message

Directories

Path Synopsis
Package addrmgr implements concurrency safe Bitcoin address manager.
Package addrmgr implements concurrency safe Bitcoin address manager.
Package blockchain implements bitcoin block handling and chain selection rules.
Package blockchain implements bitcoin block handling and chain selection rules.
fullblocktests
Package fullblocktests provides a set of block consensus validation tests.
Package fullblocktests provides a set of block consensus validation tests.
indexers
Package indexers implements optional block chain indexes.
Package indexers implements optional block chain indexes.
Package brontide implements Handshake's Brontide P2P transport primitives.
Package brontide implements Handshake's Brontide P2P transport primitives.
Package chaincfg defines chain configuration parameters.
Package chaincfg defines chain configuration parameters.
chainhash module
cmd
addblock command
findcheckpoint command
gencerts command
hnsctl command
hnsparity command
hnsparity performs a resumable, read-only comparison of handshake-node and the pinned hsd mainnet oracle.
hnsparity performs a resumable, read-only comparison of handshake-node and the pinned hsd mainnet oracle.
hsdinterop command
Package connmgr implements a generic Bitcoin network connection manager.
Package connmgr implements a generic Bitcoin network connection manager.
Package database provides a block and metadata storage database.
Package database provides a block and metadata storage database.
cmd/dbtool command
ffldb
Package ffldb implements a driver for the database package that uses leveldb for the backing metadata and flat files for block storage.
Package ffldb implements a driver for the database package that uses leveldb for the backing metadata and flat files for block storage.
internal/treap
Package treap implements a treap data structure that is used to hold ordered key/value pairs using a combination of binary search tree and heap semantics.
Package treap implements a treap data structure that is used to hold ordered key/value pairs using a combination of binary search tree and heap semantics.
Package hnsjson provides primitives for working with the JSON-RPC API.
Package hnsjson provides primitives for working with the JSON-RPC API.
hnsutil module
rpctest
Package rpctest provides a handshake-node-specific RPC testing harness crafting and executing integration tests by driving a `handshake-node` instance via the `RPC` interface.
Package rpctest provides a handshake-node-specific RPC testing harness crafting and executing integration tests by driving a `handshake-node` instance via the `RPC` interface.
Package mempool provides a policy-enforced pool of unmined bitcoin transactions.
Package mempool provides a policy-enforced pool of unmined bitcoin transactions.
stratum
Package stratum implements a minimal Handshake-specific Stratum v1 server.
Package stratum implements a minimal Handshake-specific Stratum v1 server.
Package netsync implements a concurrency safe block syncing protocol.
Package netsync implements a concurrency safe block syncing protocol.
Package peer provides a common base for creating and managing Handshake network peers.
Package peer provides a common base for creating and managing Handshake network peers.
Package rpcclient implements a websocket-enabled JSON-RPC client.
Package rpcclient implements a websocket-enabled JSON-RPC client.
Package txscript implements the bitcoin transaction script language.
Package txscript implements the bitcoin transaction script language.
Package wire implements the bitcoin wire protocol.
Package wire implements the bitcoin wire protocol.

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