[ANN] LegacyCoin (LBTC) — Fair-Launch UTXO PoW | CPU Mining | One CPU One = Vote

[LegacyBTC]

Legacy Coin / LBTC

A Fair-Launch UTXO Proof-of-Work Network

Source First. Full Node First. CPU Mining. Local Keys. One CPU = One Vote.

Introduction

Legacy Coin / LBTC is a new fair-launch UTXO Proof-of-Work network built around the original full-node culture:

download the software, run a node, verify the chain, mine from your own machine, and keep your keys locally.

This is not a web-app launch.
This is not a mobile-first launch.
This is not a presale, ICO, token sale, or allocation game.

Legacy Coin is designed to start closer to the early Bitcoin spirit:

• public source code
• simple desktop wallet
• full-node verification
• CPU-accessible mining
• local wallet ownership
• no custody
• no browser wallet dependency
• no premine or insider allocation

Fair Launch Statement

Legacy Coin / LBTC is launched with:

• No premine
• No ICO
• No private sale
• No dev tax
• No founder allocation
• No hidden insider mining window

Everyone starts from the same public network.

If you want LBTC, run the software and mine it.


Mainnet Status

Legacy Coin mainnet is live.

Public source:
https://github.com/legacybtc/LegacyCore

Windows wallet release:
https://github.com/legacybtc/LegacyCore/releases/tag/win

X / Twitter:
https://x.com/LegacyBTC

Discord:
https://discord.com/invite/WqVRY57wTx


Mainnet Parameters

Code:

Coin:              Legacy Coin
Ticker:            LBTC
Network:           Legacy Coin Mainnet
Core:              Legacy Core 1.0.0
Wallet:            Legacy Wallet 1.0.0

Chain ID:          legacy-mainnet-1.0.0-rc2-5b4c78e4
P2P Port:          19555
RPC Port:          19556

Message Start:     a4 ac c6 4d
Genesis Time:      1779235200
Genesis Nonce:     3
Genesis Hash:      5b4c78e4556afcd51acf7b9eb2e387fbea2d1414e6042d80d38e6256987154f5

PoW:               LegacyCoinPoW
Parameters:        yespower N=2048, r=32
Backend:           cgo-c-reference
Difficulty:        Dark Gravity Wave v3
Target Spacing:    10 minutes

Initial Subsidy:   50 LBTC
Halving Interval:  210,000 blocks
Max Supply Target: 21,000,000 LBTC
Coinbase Maturity: 100 blocks

P2PKH Version:     48
WIF Version:       176

DNS Seeds:         legacycoinseed.space legacycoinseed2.space

Proof-of-Work

Legacy Coin uses LegacyCoinPoW, based on yespower parameters:

Code:

N = 2048
r = 32
Input = serialized 80-byte Legacy block header
Production backend = cgo-c-reference

Public binaries that validate blocks, mine blocks, validate pool shares, or submit blocks must use:

Code:

yespower backend: cgo-c-reference

The pure-Go yespower path is experimental/debug only unless byte-for-byte parity with the C reference backend is proven.


Why CPU Mining?

Legacy Coin is built around the old idea that network participation should begin with a normal machine.

The goal is not to recreate a modern web3 launch where users connect wallets through browsers and wait for insiders, pools, or bots to dominate the first block.

The goal is simple:

• run a node
• mine with your own CPU
• verify your own chain
• keep your own keys
• help the network by staying online

One CPU = One Vote means voting power comes from contributed Proof-of-Work, not from premine, staking, token allocations, or private access.


How to Start on Windows

For normal users, Windows desktop wallet is the easiest path.

1. Go to the release page:

https://github.com/legacybtc/LegacyCore/releases/tag/win

2. Download the Windows wallet ZIP.

3. Extract the ZIP.

4. Open the extracted folder.

5. Run:

Code:

START_HERE.bat

6. Wait for peers and sync.

7. Use the Receive tab to create/copy a receive address.

8. Use the Mining tab if you want to solo mine.

Important: Back up your wallet/private keys before using real funds.


How to Start on Linux

Linux Core/CLI binary package is coming soon.

For now, Linux users should build from source.

Code:

sudo apt update
sudo apt install -y build-essential gcc g++ make git curl pkg-config ca-certificates nodejs npm

git clone https://github.com/legacybtc/LegacyCore.git
cd LegacyCore

cd cmd/legacywallet/frontend
npm install
npm run build
cd ../../..

export CGO_ENABLED=1
go test ./...
go vet ./...
go build -trimpath -o legacycoind ./cmd/legacycoind
go build -trimpath -o legacycoin-cli ./cmd/legacycoin-cli

./legacycoind params

Expected:

Code:

message start: a4 ac c6 4d
genesis hash: 5b4c78e4556afcd51acf7b9eb2e387fbea2d1414e6042d80d38e6256987154f5
yespower backend: cgo-c-reference

Run node:

Code:

./legacycoind run -seed-peers

In another terminal:

Code:

./legacycoin-cli getnetworkinfo
./legacycoin-cli getblockcount
./legacycoin-cli getpeerinfo

If you have zero peers:

Code:

./legacycoind run -connect legacycoinseed.space:19555
./legacycoind run -connect legacycoinseed2.space:19555

Node Operators

If you can accept incoming P2P connections, open:

Code:

19555/tcp

Do not expose RPC publicly.

Code:

P2P: 19555  public peer network
RPC: 19556  local/private only

Example Linux firewall:

Code:

sudo ufw allow 19555/tcp
sudo ufw deny 19556/tcp

RPC should stay local/private unless the operator understands authentication, firewalling, and secure network design.


Solo Mining Explanation

Legacy Wallet / Core mining is currently solo mining unless you are using a working pool.

That means:

• Your machine may be mining correctly
• Your hashrate may be real
• Your balance stays 0 until your machine actually finds a valid block
• There are no partial rewards in solo mining
• Coinbase rewards mature after 100 blocks

More hashrate increases your chance, but Proof-of-Work is probability, not a timer.

Multiple machines can mine to the same receive address. That increases total work/chance, but it is still solo mining unless using a pool.

Same address = same payout destination.
It does not create shared partial rewards.


Security Notes

• Back up wallet/private keys before using real funds.
• Verify SHA256 checksums before running release binaries.
• Do not run binaries from unofficial mirrors.
• Do not expose RPC port 19556 publicly.
• Do not mix old pre-RC2 chain data with this release.
• Use the cgo-c-reference yespower backend for production validation/mining builds.

If Windows SmartScreen appears, verify the SHA256 checksum first. Only run the file if the checksum matches the official GitHub release.


Stuck Sync / Safe Resync

If the wallet shows:

Code:

Node is behind peers
Sync: local / peer height

first give it time to request blocks.

If it stays stuck, close the wallet and back up your data folder first.

Windows data folder:

Code:

%APPDATA%\LegacyCoin

Delete only runtime chain/network data:

Code:

blocks
index
undo
utxo
chainstate
.cookie
peers.dat
mempool
mempool.dat
*.log

Keep wallet/private data:

Code:

backups
wallet
wallet-transactions
legacycoin.conf
wallet.dat
wallet.db
wallet.json
keys
seed

Do not delete wallet files, backups, private keys, or seed phrases.


Project Philosophy

Legacy Coin is intentionally not trying to launch like a modern hype token.

The goal is to return to the simple starting point:

Download. Run. Verify. Mine.

A network should begin with users running software, not with web dashboards, private allocations, mobile speculation, or custody layers.

Legacy Coin starts with:

• open source
• public mainnet
• CPU-accessible mining
• desktop wallet
• local keys
• full-node verification

That is the foundation.

Everything else comes after the network proves itself.


Links

Source code:
https://github.com/legacybtc/LegacyCore

Windows wallet release:
https://github.com/legacybtc/LegacyCore/releases/tag/win

X / Twitter:
https://x.com/LegacyBTC

Discord:
https://discord.com/invite/WqVRY57wTx

Legacy Coin / LBTC

Mine it. Run it. Verify it.

One CPU = One Vote.

[LegacyBTC]

Legacy Coin / LBTC Mainnet Update

The network is moving and mining continues.

Current mainnet snapshot:

Code:

Height:                 407
Estimated Network:      15.962 KH/s

Total mined:            20,400 LBTC
Matured supply:         15,450 LBTC
Immature supply:        4,950 LBTC
Max supply:             21,000,000 LBTC
Issued:                 0.097143%

Block reward:           50 LBTC
Coinbase maturity:      100 confirmations
Next halving:           210,000
Blocks until halving:   209,593

Reminder: total mined includes immature coinbase rewards. Newly mined block rewards mature after 100 confirmations before they can be spent.

The network is still very early. Run a node, keep peers connected, mine from your own machine, and help strengthen the chain.

**Legacy Wallet 1.0.1 Windows build is ready for public testing**

This is the current recommended Windows desktop wallet build for Legacy Coin / LBTC.

Main improvements:

• Cleaner wallet UI
• Better node/sync health display
• Clear “Synced / Syncing / Behind / Stalled” states
• Better mining status and watchdog info
• Improved Activity filtering
• Improved Backup / Restore screen
• Network tab now explains direct peers vs seeds vs total network size
• “1 direct peer” no longer means the whole network has only one user/miner
• Network KH/s is shown as a chain-based estimate from recent blocks

Before upgrading read @here:

1. Close old wallet
2. Back up your wallet/private keys
3. Extract the new ZIP into a fresh folder
4. Run `START_HERE.bat`

https://github.com/legacybtc/LegacyCore/releases/download/win/LegacyWallet-LBTC-mainnet-windows-amd64-v1.0.1.zip

This is still early mainnet software, so please report bugs with screenshots and Diagnostics output.

Download. Run. Verify. Mine.
One CPU = One Vote.

[WestHamFan10]

Hey, cool to see a straight‑up UTXO PoW project again.

I’ve been running a few other fair‑launch CPU/GPU coins recently and I’m thinking about spinning up a node and giving LBTC a go as a spec mine, but I’m trying to understand what really sets this apart from the other “back to basics” chains.

A few questions:

From your point of view, what makes Legacy Coin different from all the other yespower / CPU coins that have launched over the years?

Why should I point my hash here instead of to another fair‑launch chain — what’s the long‑term vision beyond “Bitcoin‑style but fair”?

Are there any concrete plans around ecosystem/tools (explorers, simple services, maybe lightweight infra) that would make this chain more likely to survive once the initial mining hype dies down?

I like the no‑premine / no dev tax / local keys approach a lot, and the docs are refreshingly clear. I’m just trying to decide if this is something I should mine seriously, or if it’s more of a “fun early experiment” slot in my spec mining rotation.

Happy to hear what you see as the main reason a small miner / node runner like me should care about LBTC over the long run.

[LegacyBTC]

Hey, cool to see a straight‑up UTXO PoW project again.

I’ve been running a few other fair‑launch CPU/GPU coins recently and I’m thinking about spinning up a node and giving LBTC a go as a spec mine, but I’m trying to understand what really sets this apart from the other “back to basics” chains.

A few questions:

From your point of view, what makes Legacy Coin different from all the other yespower / CPU coins that have launched over the years?

Why should I point my hash here instead of to another fair‑launch chain — what’s the long‑term vision beyond “Bitcoin‑style but fair”?

Are there any concrete plans around ecosystem/tools (explorers, simple services, maybe lightweight infra) that would make this chain more likely to survive once the initial mining hype dies down?

I like the no‑premine / no dev tax / local keys approach a lot, and the docs are refreshingly clear. I’m just trying to decide if this is something I should mine seriously, or if it’s more of a “fun early experiment” slot in my spec mining rotation.

Happy to hear what you see as the main reason a small miner / node runner like me should care about LBTC over the long run.

Hey, thanks for the fair questions.

I’ll be honest — I don’t think “yespower + fair launch” by itself is enough to make a coin special.
Many projects launched with CPU mining before, and some of them were good, some died fast, and some became just another mining rotation coin.

For me the main point with Legacy Coin is not only the algo. It is the way we are trying to start the network.

I wanted to bring it back to the simple old-school model:

download the software, run your own node, keep your keys locally, mine from your own machine, and verify things yourself.

No premine, no ICO, no dev tax, no founder allocation. Not because that sentence sounds good, but because I think it matters for the first miners.
If people are going to spend electricity and time on a new chain, they should not feel like they are just exit liquidity for some hidden allocation.

What makes LBTC different? Maybe the honest answer is: we are trying to build it slower and cleaner than the usual hype launch.

Right now the focus is not exchange talk or price talk. The focus is:

* stable wallet
* stable node
* simple mining
* clear docs
* working seed nodes
* public explorer/stats
* Linux build path
* Discord support
* tools for normal users, not only devs

Some of this is already working, some is still being improved. It is early, and I don’t want to pretend it is already a finished ecosystem.
We are fixing things in public as miners test it.

Why mine LBTC instead of another fair-launch chain?

I can’t promise you profit, listings, or that this will win over other chains. Nobody should promise that. But if you like early PoW networks, this is the stage where a small miner actually matters.
A few CPUs, a few honest nodes, a few people reporting bugs — that really helps shape the network right now.

So I would say: if you want something already mature with pools, exchanges, and polished infra, LBTC is probably still too early.

But if you like the idea of joining a young UTXO PoW chain while it is still being bootstrapped, running a node, mining early, testing, and helping build the base layer, then yes,
I think LBTC deserves a serious spec-mining slot.

Long term, I want Legacy Coin to become a small but real full-node PoW network with simple tools around it — wallet, explorer, stats, guides, node infra, mining tools, and services that do not require custody or browser-wallet dependency.

Maybe it stays small. Maybe it grows. But the goal is to build it in the open and let miners/node runners decide if it is worth keeping alive.

That is really the spirit here:

Run it. Mine it. Break it. Report it. Improve it.

One CPU = One Vote.