babylon: add mainnet babylond pruned compose (bbn-1)

Family-C CometBFT node with statesync, wasm-only snapshot bootstrap,
and babylon-specific config (timeout_commit, btc-config, iavl-cache).

Co-authored-by: Cursor <cursoragent@cursor.com>

babylon/babylond/babylon-mainnet-babylond-pruned.yml

@@ -0,0 +1,127 @@
+---
+x-logging-defaults: &logging-defaults
+  driver: json-file
+  options:
+    max-size: "10m"
+    max-file: "3"
+
+# Usage:
+#
+# mkdir rpc && cd rpc
+#
+# git init
+# git remote add origin https://github.com/StakeSquid/ethereum-rpc-docker.git
+# git fetch origin vibe
+# git checkout origin/vibe
+#
+# docker run --rm alpine sh -c "printf '0x'; head -c32 /dev/urandom | xxd -p -c 64" > .jwtsecret
+#
+# env
+# ...
+# IP=$(curl ipinfo.io/ip)
+# DOMAIN=${IP}.traefik.me
+# COMPOSE_FILE=base.yml:rpc.yml:babylon/babylond/babylon-mainnet-babylond-pruned.yml
+#
+# docker compose up -d
+#
+# curl -X POST https://${IP}.traefik.me/babylon-mainnet-pruned \
+#   -H "Content-Type: application/json" \
+#   --data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'
+
+services:
+  babylon-mainnet-pruned:
+    build:
+      context: ./babylon
+      dockerfile: cometbft.Dockerfile
+      args:
+        CL_IMAGE: ${BABYLON_BABYLOND_IMAGE:-babylonlabs/babylond}
+        CL_VERSION: ${BABYLON_MAINNET_BABYLOND_VERSION:-v4.3.0}
+    sysctls:
+      # TCP Performance
+      net.ipv4.tcp_slow_start_after_idle: 0       # Disable slow start after idle
+      net.ipv4.tcp_no_metrics_save: 1             # Disable metrics cache
+      net.ipv4.tcp_rmem: 4096 87380 16777216      # Increase TCP read buffers
+      net.ipv4.tcp_wmem: 4096 87380 16777216      # Increase TCP write buffers
+      net.core.somaxconn: 32768                   # Higher connection queue
+      # Memory/Connection Management
+      # net.core.netdev_max_backlog: 50000          # Increase network buffer
+      net.ipv4.tcp_max_syn_backlog: 30000         # More SYN requests
+      net.ipv4.tcp_max_tw_buckets: 2000000        # Allow more TIME_WAIT sockets
+    ulimits:
+      nofile: 1048576    # Max open files (for RPC/WS connections)
+    user: root
+    ports:
+      - 10871:10871
+      - 10871:10871/udp
+    expose:
+      - 26657
+      - 26660
+      - 9090
+      - 1317
+    environment:
+      - CHAIN_ID=bbn-1
+      - GENESIS_URL=https://raw.githubusercontent.com/babylonlabs-io/networks/main/bbn-1/network-artifacts/genesis.json
+      - IP=${IP}
+      - MIN_GAS=0.002ubbn
+      - MONIKER=d${DOMAIN:-local}
+      - P2P_PORT=10871
+      - SEEDS=42fad8afbf7dfca51020c3c6e1a487ce17c4c218@babylon-seed-1.nodes.guru:55706,ade4d8bc8cbe014af6ebdf3cb7b1e9ad36f412c0@seeds.polkachu.com:20656
+      - STATESYNC_RPC=https://babylon-rpc.polkachu.com:443
+      - WASM_SNAPSHOT_URL=https://snapshots.polkachu.com/wasm/babylon/babylon_wasmonly.tar.lz4
+    restart: unless-stopped
+    stop_grace_period: 5m
+    networks:
+      - chains
+    volumes:
+      - ${BABYLON_MAINNET_BABYLOND_PRUNED_DATA:-babylon-mainnet-babylond-pruned}:/root/.babylond
+      - /slowdisk:/slowdisk
+    logging: *logging-defaults
+    labels:
+      - prometheus-scrape.enabled=true
+      - prometheus-scrape.port=26660
+      - prometheus-scrape.path=/metrics
+      - traefik.enable=true
+      - traefik.http.middlewares.babylon-mainnet-babylond-pruned-stripprefix.stripprefix.prefixes=/babylon-mainnet-pruned
+      - traefik.http.services.babylon-mainnet-babylond-pruned.loadbalancer.server.port=26657
+      - ${NO_SSL:-traefik.http.routers.babylon-mainnet-babylond-pruned.entrypoints=websecure}
+      - ${NO_SSL:-traefik.http.routers.babylon-mainnet-babylond-pruned.tls.certresolver=myresolver}
+      - ${NO_SSL:-traefik.http.routers.babylon-mainnet-babylond-pruned.rule=Host(`$DOMAIN`) && (Path(`/babylon-mainnet-pruned`) || Path(`/babylon-mainnet-pruned/`))}
+      - ${NO_SSL:+traefik.http.routers.babylon-mainnet-babylond-pruned.rule=Path(`/babylon-mainnet-pruned`) || Path(`/babylon-mainnet-pruned/`)}
+      - traefik.http.routers.babylon-mainnet-babylond-pruned.middlewares=babylon-mainnet-babylond-pruned-stripprefix, ipallowlist
+      - traefik.http.routers.babylon-mainnet-babylond-pruned.priority=50   # gets any request that is not GET with UPGRADE header
+      - traefik.http.routers.babylon-mainnet-babylond-pruned-ws.priority=100   # answers GET requests first
+      - traefik.http.middlewares.babylon-mainnet-babylond-pruned-set-ws-path.replacepath.path=/websocket
+      - traefik.http.services.babylon-mainnet-babylond-pruned-ws.loadbalancer.server.port=26657
+      - traefik.http.routers.babylon-mainnet-babylond-pruned-ws.service=babylon-mainnet-babylond-pruned-ws
+      - traefik.http.routers.babylon-mainnet-babylond-pruned.service=babylon-mainnet-babylond-pruned
+      - ${NO_SSL:-traefik.http.routers.babylon-mainnet-babylond-pruned-ws.entrypoints=websecure}
+      - ${NO_SSL:-traefik.http.routers.babylon-mainnet-babylond-pruned-ws.tls.certresolver=myresolver}
+      - ${NO_SSL:-traefik.http.routers.babylon-mainnet-babylond-pruned-ws.rule=Host(`$DOMAIN`) && (Path(`/babylon-mainnet-pruned`) || Path(`/babylon-mainnet-pruned/`)) && HeadersRegexp(`Upgrade`, `(?i)websocket`)}
+      - ${NO_SSL:+traefik.http.routers.babylon-mainnet-babylond-pruned-ws.rule=(Path(`/babylon-mainnet-pruned`) || Path(`/babylon-mainnet-pruned/`)) && HeadersRegexp(`Upgrade`, `(?i)websocket`)}
+      - traefik.http.routers.babylon-mainnet-babylond-pruned-ws.middlewares=babylon-mainnet-babylond-pruned-stripprefix, babylon-mainnet-babylond-pruned-set-ws-path, ipallowlist
+
+volumes:
+  babylon-mainnet-babylond-pruned:
+
+x-upstreams:
+  - id: $${ID}
+    labels:
+      provider: $${PROVIDER}
+    connection:
+      generic:
+        rpc:
+          url: $${RPC_URL}
+        ws:
+          frameSize: 20Mb
+          msgSize: 50Mb
+          url: $${WS_URL}
+    chain: babylon
+    method-groups:
+      enabled:
+        - debug
+        - filter
+    methods:
+      disabled:
+      enabled:
+        - name: txpool_content # TODO: should be disabled for rollup nodes
+...

babylon/cometbft.Dockerfile

@@ -0,0 +1,11 @@
+ARG CL_IMAGE
+ARG CL_VERSION
+FROM ${CL_IMAGE}:${CL_VERSION}
+# Layer the shared CometBFT bootstrap lib + the chain init.sh onto the upstream
+# babylond binary image (alpine-based, has sh+apk; runs nonroot by default — the compose
+# sets user: root so init.sh can apk-add curl and write the /root home).
+USER root
+COPY ./scripts/cometbft-common.sh /usr/local/bin/cometbft-common.sh
+COPY ./scripts/init.sh            /usr/local/bin/init.sh
+RUN chmod +x /usr/local/bin/init.sh /usr/local/bin/cometbft-common.sh
+ENTRYPOINT ["init.sh"]

babylon/scripts/cometbft-common.sh

@@ -0,0 +1,223 @@
+#!/bin/sh
+# cometbft-common.sh — reusable CometBFT-node bootstrap helpers (family C).
+#
+# Source this from a chain-specific init.sh. It encapsulates the operations every
+# CometBFT-consensus node needs (init, fetch config artifacts, patch config.toml /
+# app.toml, seed priv_validator_state), extracted verbatim from the proven berachain
+# beacon-kit entrypoint so callers inherit known-good behavior.
+#
+# Each function takes explicit arguments (paths/values) — it is binary-agnostic. The
+# caller owns the binary name, the `<binary> init` invocation, the artifact URLs, and
+# the final `exec <binary> start ...`. EL-driven chains (beacon-kit, morph) also call
+# the JWT / engine-dial helpers; pure-consensus chains (gaiad) skip them.
+#
+# Conventions: POSIX sh (alpine). Config dir is conventionally $HOME_DIR/config.
+# Used by: morph-node, gaiad (cosmos batch), and any future family-C chain.
+# beacon-kit (berachain) keeps its own bespoke init.sh on purpose — do not retrofit it.
+
+set -e
+
+ct_log() { echo "[cometbft-init] $*"; }
+
+# Ensure curl exists (alpine base images often omit it). Idempotent.
+ct_require_curl() {
+  if ! command -v curl >/dev/null 2>&1; then
+    ct_log "installing curl"
+    apk add --no-cache curl
+  fi
+}
+
+# ct_fetch URL DEST [required]
+#   Download URL -> DEST. If the 3rd arg is "required", a failure is fatal;
+#   otherwise a missing/failed fetch is logged and skipped (returns 0).
+ct_fetch() {
+  _url="$1"; _dest="$2"; _req="${3:-optional}"
+  [ -n "$_url" ] || { [ "$_req" = required ] && { ct_log "FATAL: empty URL for $_dest"; exit 1; }; return 0; }
+  if curl -fsSL "$_url" -o "$_dest"; then
+    ct_log "fetched $_url -> $_dest"
+  else
+    if [ "$_req" = required ]; then
+      ct_log "FATAL: failed to fetch required $_url"; exit 1
+    fi
+    ct_log "skip: could not fetch optional $_url"
+  fi
+}
+
+# ct_patch_p2p CONFIG_TOML IP P2P_PORT
+#   Bind p2p to 0.0.0.0:PORT and advertise IP:PORT (only within the [p2p] section).
+ct_patch_p2p() {
+  _cfg="$1"; _ip="$2"; _port="$3"
+  [ -f "$_cfg" ] || { ct_log "patch_p2p: $_cfg missing, skipping"; return 0; }
+  _laddr="tcp:\\/\\/0\\.0\\.0\\.0\\:${_port}"
+  sed -i "/^\[p2p\]/,/^\[/{s|^laddr = .*|laddr = \"$_laddr\"|}" "$_cfg"
+  sed -i "/^\[p2p\]/,/^\[/{s|^external_address = .*|external_address = \"${_ip}:${_port}\"|}" "$_cfg"
+}
+
+# ct_merge_seeds CONFIG_TOML CONFIGURED_SEEDS [SEEDS_URL]
+#   Merge operator-configured seeds with an optional official seed list (1 entry per
+#   line, first line skipped like the berachain cl-seeds.txt header), dedupe, write.
+ct_merge_seeds() {
+  _cfg="$1"; _seeds="$2"; _url="$3"
+  [ -f "$_cfg" ] || return 0
+  if [ -n "$_url" ]; then
+    _official=$(curl -f -s "$_url" | tail -n +2 | tr '\n' ',' | sed 's/,$//' || true)
+    if [ -n "$_official" ]; then
+      ct_log "merging official seeds from $_url"
+      _seeds=$(echo "${_seeds},${_official}" | tr ',' '\n' | sed '/^$/d' | sort -u | paste -sd,)
+    else
+      ct_log "no official seeds fetched from $_url (continuing with configured)"
+    fi
+  fi
+  if [ -n "$_seeds" ]; then
+    sed -i "s/^seeds = \".*\"/seeds = \"${_seeds}\"/" "$_cfg"
+  fi
+}
+
+# ct_set_persistent_peers CONFIG_TOML PEERS
+#   Handles both cometbft-classic `persistent_peers` (underscore) and forks that use
+#   `persistent-peers` (hyphen, e.g. sei) — patches whichever key is present.
+ct_set_persistent_peers() {
+  _cfg="$1"; _peers="$2"
+  [ -f "$_cfg" ] || return 0
+  [ -n "$_peers" ] || return 0
+  sed -i "s/^persistent_peers = \".*\"/persistent_peers = \"${_peers}\"/" "$_cfg"
+  sed -i "s/^persistent-peers = \".*\"/persistent-peers = \"${_peers}\"/" "$_cfg"
+  return 0
+}
+
+# ct_set_moniker CONFIG_TOML MONIKER
+ct_set_moniker() {
+  _cfg="$1"; _mon="$2"
+  [ -f "$_cfg" ] || return 0
+  [ -n "$_mon" ] && sed -i "s/^moniker = \".*\"/moniker = \"$_mon\"/" "$_cfg"
+  return 0
+}
+
+# ct_set_addrbook CONFIG_DIR ADDRBOOK_URL
+#   Optional: cosmos chains often seed an addrbook.json for faster peer discovery.
+ct_set_addrbook() {
+  _dir="$1"; _url="$2"
+  [ -n "$_url" ] || return 0
+  ct_fetch "$_url" "$_dir/addrbook.json" optional
+}
+
+# ct_write_jwt CONFIG_DIR  [JWT_SRC]
+#   EL-driven chains: copy the shared engine JWT (default /jwtsecret) into the config
+#   dir as jwt.hex so the CL can authenticate to the EL engine API.
+ct_write_jwt() {
+  _dir="$1"; _src="${2:-/jwtsecret}"
+  [ -f "$_src" ] || { ct_log "write_jwt: $_src missing, skipping"; return 0; }
+  cat "$_src" > "$_dir/jwt.hex"
+}
+
+# ct_set_rpc_dial_url APP_TOML AUTH_RPC
+#   beacon-kit / app.toml-style EL engine endpoint (e.g. http://<el>:8551).
+ct_set_rpc_dial_url() {
+  _app="$1"; _rpc="$2"
+  [ -f "$_app" ] || return 0
+  [ -n "$_rpc" ] && sed -i "s|^rpc-dial-url = \".*\"|rpc-dial-url = \"$_rpc\"|" "$_app"
+  return 0
+}
+
+# ct_seed_priv_validator_state HOME_DIR
+#   Ensure data/priv_validator_state.json exists (cometbft refuses to start without it
+#   when one is present in config/). Mirrors the berachain init.sh behavior.
+ct_seed_priv_validator_state() {
+  _home="$1"
+  if [ -e "$_home/config/priv_validator_state.json" ] && [ ! -e "$_home/data/priv_validator_state.json" ]; then
+    mkdir -p "$_home/data"
+    cp "$_home/config/priv_validator_state.json" "$_home/data/priv_validator_state.json"
+  fi
+  return 0
+}
+
+# ct_apk PKG...
+#   Install alpine packages idempotently (most cosmos init scripts need curl, some jq).
+ct_apk() {
+  apk add --no-cache "$@"
+}
+
+# ct_localize_home CONFIG_DIR
+#   Rewrite `~/` to `/root/` in config.toml + app.toml. Cosmos `init` writes home-relative
+#   paths; the container runs as root with a static home, so make paths absolute.
+ct_localize_home() {
+  _dir="$1"
+  [ -f "$_dir/config.toml" ] && sed -i 's|~/|/root/|g' "$_dir/config.toml"
+  [ -f "$_dir/app.toml" ]    && sed -i 's|~/|/root/|g' "$_dir/app.toml"
+  return 0
+}
+
+# ct_set_min_gas_prices APP_TOML PRICE
+#   Cosmos chains reject txs (and sometimes refuse to start) with an empty
+#   minimum-gas-prices. PRICE e.g. "0.01usei", "0.0025uatom", "0.01hqq".
+ct_set_min_gas_prices() {
+  _app="$1"; _price="$2"
+  [ -f "$_app" ] || return 0
+  [ -n "$_price" ] || return 0
+  sed -i "s/minimum-gas-prices = \"\"/minimum-gas-prices = \"${_price}\"/g" "$_app"
+  return 0
+}
+
+# ct_configure_statesync CONFIG_TOML RPC_SERVERS [TRUST_OFFSET]
+#   Enable cometbft state-sync so a fresh node bootstraps near chainhead instead of
+#   replaying from genesis — the single biggest lever for "can't keep it at chainhead"
+#   chains. RPC_SERVERS = comma list of trusted RPC endpoints (>=2 recommended; a single
+#   endpoint is duplicated). TRUST_OFFSET = blocks below head to trust (default 2000).
+#   Requires jq + curl. No-op (logged) if head height can't be fetched.
+ct_configure_statesync() {
+  _cfg="$1"; _rpc="$2"; _offset="${3:-2000}"
+  [ -f "$_cfg" ] || return 0
+  # NEVER re-arm statesync on a node that already has application state (a restored
+  # snapshot or a prior sync). Re-statesyncing over it leaves a broken/partial datadir and,
+  # for wasm chains, drops the wasm files -> startup panic. _cfg is $HOME/config/config.toml,
+  # so application state lives at $HOME/data/application.db.
+  _home=$(dirname "$(dirname "$_cfg")")
+  if [ -e "$_home/data/application.db" ]; then
+    ct_log "statesync: existing data dir, skipping"
+    return 0
+  fi
+  [ -n "$_rpc" ] || { ct_log "statesync: no RPC servers given, skipping"; return 0; }
+  _primary=$(echo "$_rpc" | cut -d, -f1)
+  _latest=$(curl -s "$_primary/block" | jq -r '.result.block.header.height // .block.header.height' 2>/dev/null || true)
+  if [ -z "$_latest" ] || [ "$_latest" = null ]; then
+    ct_log "statesync: could not read head height from $_primary, skipping"; return 0
+  fi
+  _trust_h=$((_latest - _offset))
+  _trust_hash=$(curl -s "$_primary/block?height=$_trust_h" | jq -r '.result.block_id.hash // .block_id.hash' 2>/dev/null || true)
+  [ -n "$_trust_hash" ] && [ "$_trust_hash" != null ] || { ct_log "statesync: no trust hash, skipping"; return 0; }
+  # second server defaults to the first (cometbft wants >=2 for light-client cross-check)
+  echo "$_rpc" | grep -q ',' || _rpc="$_rpc,$_rpc"
+  ct_log "statesync: enable trust_height=$_trust_h trust_hash=$_trust_hash"
+  # Patch ONLY the [statesync] section. CometBFT config.toml uses underscore keys
+  # (rpc_servers/trust_height/trust_hash); tolerate hyphen variants with [_-].
+  sed -i.bak -E "/^\[statesync\]/,/^\[/{
+    s|^([[:space:]]*enable[[:space:]]*=[[:space:]]*).*|\1true|
+    s|^([[:space:]]*rpc[_-]servers[[:space:]]*=[[:space:]]*).*|\1\"$_rpc\"|
+    s|^([[:space:]]*trust[_-]height[[:space:]]*=[[:space:]]*).*|\1$_trust_h|
+    s|^([[:space:]]*trust[_-]hash[[:space:]]*=[[:space:]]*).*|\1\"$_trust_hash\"|
+  }" "$_cfg"
+  return 0
+}
+
+# ct_ensure_wasm HOME_DIR WASM_SNAPSHOT_URL
+#   CosmWasm + IBC 08-wasm bytecode are FILES on disk that state-sync does NOT restore, so
+#   a state-synced wasm chain panics at startup ("wasmlckeeper failed initialize pinned codes
+#   / Error opening Wasm file"). Seed them from a wasm-only snapshot (e.g. polkachu
+#   cosmos_wasmonly.tar.lz4) when the wasm dir is missing/empty. No-op if URL unset or wasm
+#   already present. Best-effort (logs on failure); the fully robust path for wasm chains is a
+#   FULL snapshot restore. Requires lz4 + tar (installed here).
+ct_ensure_wasm() {
+  _home="$1"; _url="$2"
+  [ -n "$_url" ] || return 0
+  if [ -d "$_home/wasm" ] && [ -n "$(ls -A "$_home/wasm" 2>/dev/null)" ]; then
+    return 0   # wasm already present
+  fi
+  ct_log "wasm: empty, fetching snapshot $_url"
+  ct_apk lz4 tar
+  if curl -sL "$_url" | lz4 -dc | tar -xf - -C "$_home"; then
+    ct_log "wasm: extracted into $_home"
+  else
+    ct_log "WARN wasm: fetch/extract failed ($_url)"
+  fi
+  return 0
+}

babylon/scripts/init.sh

@@ -0,0 +1,48 @@
+#!/bin/sh
+# babylon-genesis (babylond) entrypoint — family C, pure CometBFT (no EL). Thin: sources the
+# shared cometbft-common.sh and orchestrates init + statesync bootstrap + start.
+# Genesis replay is impractical; statesync near head with the current binary.
+# Serves CometBFT RPC :26657 (the dshackle upstream).
+set -e
+. /usr/local/bin/cometbft-common.sh
+
+HOME_DIR="/root/.babylond"
+CONFIG_DIR="$HOME_DIR/config"
+CHAIN_ID="${CHAIN_ID:-bbn-1}"
+GENESIS_URL="${GENESIS_URL:-https://raw.githubusercontent.com/babylonlabs-io/networks/main/bbn-1/network-artifacts/genesis.json}"
+STATESYNC_RPC="${STATESYNC_RPC:-https://babylon-rpc.polkachu.com:443}"
+MIN_GAS="${MIN_GAS:-0.002ubbn}"
+MONIKER="${MONIKER:-rpc-node}"
+
+ct_apk curl jq
+
+if babylond init "$MONIKER" --chain-id "$CHAIN_ID" --home "$HOME_DIR" >/dev/null 2>&1; then
+  ct_log "fresh init; fetching genesis"
+  ct_fetch "$GENESIS_URL" "$CONFIG_DIR/genesis.json" required
+  ct_localize_home "$CONFIG_DIR"
+  ct_set_min_gas_prices "$CONFIG_DIR/app.toml" "$MIN_GAS"
+else
+  ct_log "already initialized, continuing"
+fi
+
+# Serve RPC on all interfaces (dshackle/traefik upstream); default is 127.0.0.1.
+sed -i '/^\[rpc\]/,/^\[/{s|^laddr = .*|laddr = "tcp://0.0.0.0:26657"|}' "$CONFIG_DIR/config.toml"
+
+# Babylon Genesis block time (9200ms) — required for consensus.
+sed -i 's|^timeout_commit = .*|timeout_commit = "9200ms"|' "$CONFIG_DIR/config.toml"
+
+# BTC checkpointing network params only — no bitcoind needed for an RPC replica.
+sed -i '/^\[btc-config\]/,/^\[/{s|^network = .*|network = "mainnet"|}' "$CONFIG_DIR/app.toml"
+
+# Recommended for pruned RPC nodes (reduces memory pressure).
+sed -i 's|^iavl-cache-size = .*|iavl-cache-size = 0|' "$CONFIG_DIR/app.toml"
+
+ct_patch_p2p             "$CONFIG_DIR/config.toml" "$IP" "${P2P_PORT:-26656}"
+ct_merge_seeds           "$CONFIG_DIR/config.toml" "$SEEDS"
+ct_set_persistent_peers  "$CONFIG_DIR/config.toml" "$PERSISTENT_PEERS"
+ct_set_moniker           "$CONFIG_DIR/config.toml" "$MONIKER"
+ct_configure_statesync   "$CONFIG_DIR/config.toml" "$STATESYNC_RPC"
+ct_ensure_wasm           "$HOME_DIR" "$WASM_SNAPSHOT_URL"
+ct_seed_priv_validator_state "$HOME_DIR"
+
+exec babylond start --home "$HOME_DIR" --minimum-gas-prices "$MIN_GAS" "$@"

compose_registry.json

@@ -1106,6 +1106,20 @@
       "aztec-testnet-aztec-pruned"
     ]
   },
+  {
+    "chain": "mainnet",
+    "client": "babylond",
+    "compose_file": "babylon/babylond/babylon-mainnet-babylond-pruned",
+    "features": [],
+    "network": "babylon",
+    "node": null,
+    "relay": null,
+    "stack": null,
+    "type": "pruned",
+    "volumes": [
+      "babylon-mainnet-babylond-pruned"
+    ]
+  },
   {
     "chain": "bepolia",
     "client": "geth",