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#!/usr/bin/env python3
"""Estimate Bitflash mining rewards and electricity cost.
This is a local WhatToMine-style calculator for Bitflash. It does not fetch
prices, does not talk to the node, and does not affect consensus.
"""
import argparse
import json
import math
import sys
HASHES_AT_DIFF_1 = 4096.0
DEFAULT_BLOCK_TIME = 120.0
DEFAULT_BLOCK_REWARD = 50.0
UNITS = {
"h": 1.0,
"h/s": 1.0,
"hs": 1.0,
"kh": 1_000.0,
"kh/s": 1_000.0,
"khs": 1_000.0,
"mh": 1_000_000.0,
"mh/s": 1_000_000.0,
"mhs": 1_000_000.0,
"gh": 1_000_000_000.0,
"gh/s": 1_000_000_000.0,
"ghs": 1_000_000_000.0,
}
def parse_hashrate(value, unit):
try:
n = float(value)
except ValueError:
raise SystemExit("invalid hashrate: %s" % value)
mul = UNITS.get(unit.lower())
if mul is None:
raise SystemExit("unknown hashrate unit: %s" % unit)
if n < 0:
raise SystemExit("hashrate must not be negative")
return n * mul
def fmt_hashrate(hps):
units = [("GH/s", 1_000_000_000.0), ("MH/s", 1_000_000.0), ("kH/s", 1_000.0), ("H/s", 1.0)]
for name, div in units:
if hps >= div:
return "%.4g %s" % (hps / div, name)
return "%.4g H/s" % hps
def fmt_money(x):
return "%.8f" % x
def estimate(args):
miner_hps = parse_hashrate(args.hashrate, args.hashrate_unit)
if args.network_hashrate is not None:
network_hps = parse_hashrate(args.network_hashrate, args.network_hashrate_unit)
difficulty = network_hps * args.block_time / HASHES_AT_DIFF_1
network_source = "network_hashrate"
else:
if args.difficulty is None:
raise SystemExit("provide either --network-hashrate or --difficulty")
difficulty = float(args.difficulty)
if difficulty <= 0:
raise SystemExit("difficulty must be positive")
network_hps = difficulty * HASHES_AT_DIFF_1 / args.block_time
network_source = "difficulty"
if network_hps <= 0:
raise SystemExit("network hashrate must be positive")
block_reward = float(args.block_reward)
block_time = float(args.block_time)
pool_fee_percent = float(args.pool_fee)
price = float(args.price)
watts = float(args.watts)
kwh_cost = float(args.kwh_cost)
if block_reward < 0 or block_time <= 0 or pool_fee_percent < 0 or price < 0 or watts < 0 or kwh_cost < 0:
raise SystemExit("numeric inputs must be non-negative; block time must be positive")
share = miner_hps / network_hps
blocks_per_day = 86400.0 / block_time
gross_btf_day = blocks_per_day * block_reward * share
net_btf_day = gross_btf_day * max(0.0, 1.0 - pool_fee_percent / 100.0)
revenue_day = net_btf_day * price
cost_day = watts / 1000.0 * 24.0 * kwh_cost
profit_day = revenue_day - cost_day
expected_seconds_per_block = math.inf if miner_hps <= 0 else difficulty * HASHES_AT_DIFF_1 / miner_hps
periods = {
"hour": 1.0 / 24.0,
"day": 1.0,
"week": 7.0,
"month_30d": 30.0,
}
rows = {}
for name, days in periods.items():
rows[name] = {
"btf": net_btf_day * days,
"revenue": revenue_day * days,
"electricity_cost": cost_day * days,
"profit": profit_day * days,
}
return {
"schema": "bitflash-mining-calculator-1",
"network_source": network_source,
"inputs": {
"miner_hashrate_hps": miner_hps,
"miner_hashrate": fmt_hashrate(miner_hps),
"network_hashrate_hps": network_hps,
"network_hashrate": fmt_hashrate(network_hps),
"difficulty": difficulty,
"block_time_seconds": block_time,
"block_reward_btf": block_reward,
"pool_fee_percent": pool_fee_percent,
"price_per_btf": price,
"power_watts": watts,
"electricity_per_kwh": kwh_cost,
},
"estimates": {
"miner_network_share": share,
"blocks_per_day": blocks_per_day,
"expected_time_to_solo_block_seconds": expected_seconds_per_block,
"expected_time_to_solo_block_hours": expected_seconds_per_block / 3600.0,
"gross_btf_per_day": gross_btf_day,
"net_btf_per_day": net_btf_day,
"periods": rows,
},
}
def print_text(result):
i = result["inputs"]
e = result["estimates"]
print("Bitflash mining calculator")
print("schema: %s" % result["schema"])
print()
print("Network")
print(" source: %s" % result["network_source"])
print(" hashrate: %s" % i["network_hashrate"])
print(" difficulty: %.8f" % i["difficulty"])
print(" block time: %.0fs" % i["block_time_seconds"])
print(" reward: %s BTF" % fmt_money(i["block_reward_btf"]))
print()
print("Miner")
print(" hashrate: %s" % i["miner_hashrate"])
print(" share: %.8f%%" % (e["miner_network_share"] * 100.0))
if math.isinf(e["expected_time_to_solo_block_seconds"]):
print(" solo block: never")
else:
print(" solo block: %.2f hours expected average" % e["expected_time_to_solo_block_hours"])
print()
print("Economics")
print(" price: $%.8f / BTF" % i["price_per_btf"])
print(" power: %.2f W" % i["power_watts"])
print(" kWh cost: $%.4f" % i["electricity_per_kwh"])
print(" pool fee: %.2f%%" % i["pool_fee_percent"])
print()
print("Estimated rewards")
print(" %-9s %16s %12s %12s %12s" % ("period", "BTF", "revenue", "power", "profit"))
for name in ["hour", "day", "week", "month_30d"]:
row = e["periods"][name]
print(" %-9s %16s $%11.4f $%11.4f $%11.4f" % (
name,
fmt_money(row["btf"]),
row["revenue"],
row["electricity_cost"],
row["profit"],
))
print()
print("Note: this is an expectation, not a promise. Solo mining variance can be huge.")
def main(argv):
ap = argparse.ArgumentParser(description=__doc__)
ap.add_argument("--hashrate", required=True, help="miner hashrate number")
ap.add_argument("--hashrate-unit", default="kh/s", choices=sorted(UNITS), help="miner hashrate unit")
ap.add_argument("--network-hashrate", help="network hashrate number")
ap.add_argument("--network-hashrate-unit", default="kh/s", choices=sorted(UNITS), help="network hashrate unit")
ap.add_argument("--difficulty", type=float, help="Bitflash difficulty; diff 1 expects 4096 hashes")
ap.add_argument("--block-time", type=float, default=DEFAULT_BLOCK_TIME, help="target block time in seconds")
ap.add_argument("--block-reward", type=float, default=DEFAULT_BLOCK_REWARD, help="block reward in BTF")
ap.add_argument("--pool-fee", type=float, default=0.0, help="pool fee percent")
ap.add_argument("--price", type=float, default=0.0, help="price per BTF in USD or your chosen fiat unit")
ap.add_argument("--watts", type=float, default=0.0, help="miner or whole-system power in watts")
ap.add_argument("--kwh-cost", type=float, default=0.0, help="electricity cost per kWh")
ap.add_argument("--json", action="store_true", help="print JSON")
args = ap.parse_args(argv)
result = estimate(args)
if args.json:
print(json.dumps(result, sort_keys=True, indent=2))
else:
print_text(result)
return 0
if __name__ == "__main__":
raise SystemExit(main(sys.argv[1:]))
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