Sedra, explained simply.

What Sedra is

Sedra is an open network that machines and people can use to coordinate, prove, and remember, and to pay each other for work.

Under the hood it is a proof-of-work blockchain, in the same family as Bitcoin, but built for speed and for many things happening at once. It is owned by no company. The code, the money supply, and the rules are all public, and anyone can join.

Sedra first launched in 2024, went quiet, and has been restored in the open. It is live again, with public mining open to everyone.

The bigger idea: as software agents start acting on their own and paying one another, they need neutral ground to settle on and a shared memory they can trust. Sedra is built to be that ground. The first piece of it you can use today is Metacore.

What SDR is

SDR is Sedra's coin. It is what you earn by mining, what you spend to use the network, and what pays the people who keep it running.

There is a fixed maximum supply, and no coins were secretly created for insiders before launch. Every coin is earned through mining. The smallest unit of SDR is called a seep, the way a cent is the smallest unit of a dollar.

SDR has one job that most coins do not: it pays for real work. When you use Metacore to get AI answers, you pay in SDR, and most of that goes to the people whose machines did the work. So demand comes from usage, not just speculation.

What is live today Live

We label things honestly. Here is where each piece stands.

Anything marked Soon is real work still ahead, described as what it is. We do not present plans as if they already shipped.

Get a wallet

A wallet holds your SDR and lets you send and receive it. Your keys stay on your own device. No account, no sign-up.

1. Open the web wallet, or install the desktop app or the Android wallet.
2. Create a new wallet. Write down your recovery phrase and keep it somewhere safe and offline.
3. That phrase is the only way to restore your wallet. Never share it. No one from Sedra will ever ask for it.

Keep it small and safe. For everyday use and for Metacore, use a small wallet you top up as needed, not one holding savings you cannot afford to expose.

Get some SDR

There are three honest ways to get SDR.

• Mine it. Point a mining rig at the network and earn block rewards. See Mine SDR.
• Earn it. Put a computer to work answering Metacore tasks. See Earn on Metacore.
• Buy it. SDR trades on exchanges such as MEXC and LBank. Always double-check the ticker is SDR and the network is Sedra.

The explorer

The explorer is a public window into the chain. Paste an address to see its balance and history, or a transaction ID to see its status. Every transaction on Sedra is public and can be checked here by anyone.

Metacore Live

Metacore is verifiable AI. You ask, and instead of trusting one model in a black box, your task is done by several independent models and checked by independent judges.

Every answer comes back with a receipt sealed to Sedra: which models did the work, how much they agreed, and a stamp anyone can verify. You pay in SDR, and you are refunded if the answer cannot be verified. Open it at app.sedracoin.com.

How a task works

1. You write what you need and connect a wallet, because tasks are paid in SDR.
2. Several independent models do the work at once. They do not see each other's answers.
3. Independent judges grade the answers, and the best one wins.
4. You get the answer plus a proof, sealed to the chain. If it could not be verified, you are refunded.

The modes

You do not pick a mode from a menu. Metacore reads your request and routes it automatically, and shows you what it chose. The modes cover the everyday kinds of work:

• Analyze documents, data, or contracts. Research a question with sources.
• Review code or a plan. Code, to write or debug. Write and Summarize.
• Reason through a problem. Extract structured data. Translate. Classify.

You can also attach a text file, and it becomes part of the task.

Open-ended answering is live. Your request is routed, priced, produced by independent workers, and returned with a sealed receipt. Verification keeps getting stronger as more independent workers and judges join the network.

Assurance and price

A task's price is metered by the work it takes, and you see the estimate before you pay. It updates live as you type. Three things set it:

• What the task is. A quick summary is light. A deep analysis is heavier.
• How much text you give it.
• The assurance you choose. Standard runs a few models, cross-judged. High assurance runs more models, judged and challenged, for more confidence at a higher cost.

You trade cost for confidence. A throwaway note does not need a jury. A contract you are about to sign might.

Proofs and linked proofs

Every answer carries a proof: the models that worked on it, how many agreed, and a seal anchored to Sedra. Anyone can check it. The answer is portable, so the proof travels with it.

Linked proofs Rolling out

This is something ordinary AI tools cannot do. Because each answer is proven and portable, answers can relate to one another. New work can build on a verified answer, cross-check it against another, or challenge it. Your AI work stops being throwaway and starts to compound into a record you can trace end to end.

Paying and refunds

You pay the estimated amount in SDR from your connected wallet, and it is held in escrow while the work runs. The largest share goes to the workers who did the task. If the answer cannot be verified, you are refunded. Nothing is minted for this; the same SDR simply moves from the people who ask to the people who do the work.

Mine SDR Live

Mining is how new SDR is created and how the network stays secure. Your machine solves proof-of-work puzzles, and when it finds a block it earns the reward.

What you need

Sedra uses kHeavyHash, the same proof of work as the wider GHOSTDAG family. If you already have a rig for that family, it works here with nothing new to buy. A GPU is enough to start.

How to start

1. Get a wallet and copy your address.
2. Use the desktop app for a simple start, or point your own miner at a node.
3. Set your address as the payout, and mine. Rewards land in your wallet.

A fresh restart means difficulty opens low, a fair opportunity for returning miners. Mining is open to everyone, with no head start for the team.

Run a node

A node is a full copy of the network that checks every block and passes messages to other nodes. Running one makes Sedra stronger and harder to take down, because it no longer depends on any single operator.

The easiest way is the desktop app, where running a node is a single choice. If you prefer the command line, the reference node is sedrad, open source at github.com/sedracoin/sedrad.

Earn on Metacore Live

If you have a machine that can run an AI model, you can earn SDR by answering Metacore tasks. The largest share of every task fee goes to workers, and more so to those who also mine. This is what gives proof of work a demand side: mining secures the chain, and the same crowd does the useful work that runs on it.

1. Open the desktop app and open your wallet, so your rewards have a home.
2. Point it at a local model. Ollama, LM Studio, llama.cpp, or anything OpenAI-compatible all work.
3. Turn on earning. Your machine takes on tasks and gets paid for verified work.

The desktop app

One app to take part fully. It lets you run a node, mine SDR, and earn on Metacore, all with your wallet on your own machine.

Download it from the downloads page, hosted directly by Sedra. Windows and Linux builds are provided. Always check your download against the published SHA256SUMS.

Your wallet must be open to start mining or earning, so rewards always have somewhere to go.

GHOSTDAG consensus

Most blockchains make blocks stand in a single line, one at a time. When many people act at once, they collide, and the network slows down and throws work away.

Sedra uses GHOSTDAG, which lets blocks be produced in parallel and then settles them all into one shared order, instead of discarding the ones that did not come first. It keeps the security of a normal chain while handling many things happening at once. That matches how machines actually work: together, in the same instant, by the thousands.

kHeavyHash mining

kHeavyHash is Sedra's proof of work, the puzzle miners solve. At its heart is matrix multiplication, the same math that runs AI models.

It was shaped for a future kind of chip that does this math with light, which would move mining's cost out of electricity and into the hardware itself. That is the same hardware the world is reaching for to keep AI from outrunning the power grid. So over time, the chips that make AI efficient and the chips that secure Sedra point in the same direction.

This is a direction, not a claim about today. Right now kHeavyHash runs on ordinary GPUs and ASICs, and mining rigs do not run AI models. We mark it plainly as where things are headed.

Blocks, UTXO, and time

Sedra aims for a new block about every one second, so confirmations keep pace with machine activity. It uses a UTXO ledger, the same precise, auditable model as Bitcoin, where your balance is the sum of the unspent outputs paid to you.

Supply and seep

SDR has a fixed maximum supply, a ceiling the rules do not raise, currently set at 28.7 billion SDR. There was no premine. Every coin is earned by mining.

The smallest unit is the seep. Amounts on the network are counted in seep and shown to you as SDR, the way a wallet shows dollars while the system counts cents.

Blue score

Because blocks are produced in parallel, "height" is measured a little differently. The blue score is the count of blocks in the well-connected honest set up to a given point, and it is the number that steadily increases as the chain grows. Exchanges and services that track confirmations on Sedra use the blue score.

The four primitives Vision

Everything a self-acting agent needs from neutral ground comes down to four things Sedra is built to provide.

Consensus Memory Vision

This is Sedra's core idea for AI: many agents writing to one shared, ordered record at the same time, and still agreeing on a single history. It is the shared memory of the four primitives, made concrete, and it grows directly out of what GHOSTDAG does.

CTAs Vision

A CTA, or Custom Tokenized Asset, is Sedra's planned native way to own what machines create. Each one carries its provenance, the record of what it was built from, and can pay a royalty back upstream every time it is reused. Later, agents themselves can become CTAs, owned and traded like anything else, with the same provenance and royalties.

Agents Vision

An agent is software that acts on its own: it decides, negotiates, and pays without a person waiting on each step. Sedra does not run the agents or own the models. It provides the neutral ground they stand on: an identity, a shared memory, proof of the work, and payment. Today agents connect as ordinary clients; over time they can become owned, tradable CTAs with their history intact.

Integrity principles

Trust on Sedra does not rest on anyone's word. These rules are written into the code and open to inspection, and they were binding from the first block of the network's new life.

1. No off-schedule supply. Every change ships as a public, versioned release, never a quietly altered client.
2. No head start. Mining opens to everyone at the same moment, the team included.
3. Any allocation is written into the code, not mined by hand.
4. Its full amount and address are disclosed with the release, not after.
5. It is held by many keys together, never a single one.
6. It is released on a schedule anyone can watch.

Governance

Being anonymous does not mean being unaccountable. Sedra is run through three roles tied to consistent cryptographic identities over time, not to named people:

• Technical steward, for protocol and code decisions and releases.
• Treasury steward, for spending, only ever through the shared multi-signature wallet.
• Community steward, for growth and communication.

Any decision of weight needs more than one steward to sign. A multisig, or multi-signature wallet, is one that requires several keys to approve a move, so no single person can act alone. Over time, more decisions open to the wider community of operators.

Keeping the record honest

A few mechanisms keep the project's own history from quietly drifting from the truth.

• Integrity Ledger. The project's history and principles anchored on-chain.
• External anchoring. A periodic fingerprint of Sedra's state stamped into an independent chain, so the past cannot be rewritten unnoticed.
• Proof-of-Spend. Every treasury outflow is checkable against its stated purpose.

Built to last

Sedra once went dark because it leaned on too few servers. The rule now is simple: the network must keep running even if any single operator disappears, the team included.

That means several independent seed points to join through, many independent nodes and miners, disciplined offsite backups, and published checkpoints so the chain is always recoverable. The more people who run nodes and mine, the stronger and more neutral the network becomes.

Keep your keys safe

Your recovery phrase is your money. Whoever has it controls the wallet.

• Write it down and store it offline. Do not keep it in a photo, an email, or a chat.
• Never type it into a site you reached from a link in a message.
• No one from Sedra will ever ask for your phrase or private key.
• For daily use, keep a small wallet and move larger amounts to one you keep offline.

Built-in protections

Sedra's wallets are designed to protect you from common attacks. These roll out across the wallets over time.

• Address Sentinel. Defenses against address-poisoning: tiny "dust" transfers never clutter your recent list, near-match addresses are flagged before you reuse them, and large sends ask for explicit confirmation.
• Continuity Vault. Planned Recovery split across trusted parties so no one, including the team, holds a whole key, with an optional inheritance path that only activates after a long period of inactivity and stays cancellable while you are active.

Which wallet to use

There are three wallets, and they are all the same wallet underneath. Import the same recovery phrase into any of them and you see the same coins, because they all derive the same addresses.

• Web wallet at wallet.sedracoin.com. Nothing to install, works in any browser.
• Android wallet. The same web wallet, wrapped for your phone. Because it shows the live web wallet, it updates on its own. You never need to reinstall it for a wallet fix, just fully close it and open it again.
• Desktop app. A separate installed program that also runs a node, mines, and earns on Metacore. Its wallet updates by installing the latest version from the downloads page.

One phrase, everywhere. Your recovery phrase is the wallet. The apps only read the chain; your coins live on Sedra, not inside any app.

My balance looks wrong

First, the important part: nothing is lost. Your SDR lives on the blockchain under your recovery phrase. If a number looks low, the app simply has not finished finding all of your addresses yet.

Older wallets hand out a fresh receive address every time you open the Receive screen, so a single balance can be spread across dozens of addresses. The wallet has to scan through them, and a big or heavily used wallet takes a little longer.

What to do

1. Make sure you are on the latest version. The web and Android wallets update on their own, just fully close and reopen. For desktop, install the newest build from the downloads page.
2. Re-import your recovery phrase and let the scan run. It shows its progress, like "scanning receive #120", and can take 15 to 30 seconds for a large wallet.
3. Check your total again. It should now match.

Balance but no history? A balance can show before any transactions appear while the explorer's indexer catches up. That is expected and does not affect your coins.

Still off after a full rescan on the latest version? Message us on Telegram with your main address so we can trace it on-chain. Never share your recovery phrase with anyone, including us.

Import an old wallet

You can bring any existing Sedra wallet into the web, Android, or desktop wallet.

1. Choose Import.
2. Paste your 12 or 24 word recovery phrase, or a single 64-character private key, and set a new password for this device.
3. Wait for the scan to finish. It checks both the current and the older address styles automatically, so wallets from the first version of Sedra work too.

Your phrase never leaves your device. The password you set only unlocks this copy; it is not a recovery method.

Back up or restore

Back up: open Backup and manage in the wallet, enter your password, and your recovery phrase is shown. Write it down and keep it offline. This is the only backup that exists.

Move to a new device or restore: install any Sedra wallet, choose Import or Switch wallet, and enter your recovery phrase.

There is no password reset. If you lose your recovery phrase there is no way for anyone, including the Sedra team, to restore your wallet. Back it up before you hold anything meaningful.

Mining questions

The connection resets every time I get a reward. Is that a problem?

No. When a block is found the pool sends out a new job, which looks like a brief reset. Your shares still count and your rewards are unaffected. If an older ASIC was dropping often, the current pool setup fixes it, so make sure your miner points at the current endpoint.

What can I mine with?

Any GPU, or a kHeavyHash ASIC from the wider GHOSTDAG family. Point your miner at a node, or use the desktop app for a one-click start.

When do I get paid, and where?

Rewards go straight to your wallet address as blocks are found. There is no separate withdrawal step.

Difficulty seems low. Is that normal?

Yes. After the restart, difficulty opened low and rises as more miners join. It is a fair opening for everyone, with no head start for the team.

What is coming Roadmap

Named honestly as later work, so the direction is clear. We do not promise these as if they were here today.

• The judge network and linked proofs, so Metacore answers open-ended tasks and relates them to one another.
• Shared memory and the agent kit, a small open kit so any agent or worker can plug into Sedra in a few lines.
• More chains for wSDR, extending the live Polygon wSDR (backed one-to-one, with a public reserve) to additional networks and their markets.
• The GHOSTDAG bridge, to move value between Sedra and neighboring networks.
• CTAs and agents as assets, owning what machines create, with provenance and royalties.

Glossary

Sedra

The open proof-of-work network described throughout these docs.

SDR

Sedra's coin. Earned by mining, spent to use the network.

seep

The smallest unit of SDR.

Beyond Genesis

The name for Sedra's new chapter, restored in the open.

Metacore

Sedra's app for verifiable AI work: independent models, independent judges, proofs sealed to the chain.

Quorum

The group of independent workers whose agreement decides an answer, so no single machine is trusted alone.

Judge

An independent model that grades answers rather than producing them.

Seal / receipt

The proof attached to an answer: who did it, how much they agreed, and a stamp anchored to Sedra.

Linked proofs

The ability for verified answers to build on, cross-check, and challenge one another. Rolling out.

Assurance

How much verification a task gets. Standard, or High assurance for more models and higher confidence.

GHOSTDAG

Sedra's consensus. Blocks are produced in parallel and settled into one shared order.

kHeavyHash

Sedra's proof of work, built on matrix multiplication, shared with the wider GHOSTDAG family.

UTXO

The ledger model where your balance is the sum of unspent outputs paid to you.

Blue score

The parallel-chain measure of progress, used where other chains would use block height.

sedrad

The open-source reference node software, written in Go.

Node

A full copy of the network that checks blocks and relays messages.

Miner

A machine doing kHeavyHash proof of work to earn block rewards.

Multisig

A wallet that needs several keys to approve a move, so no one acts alone.

Steward

One of three governance roles: technical, treasury, community.

Proof-of-Spend

Every treasury outflow, checkable against its stated purpose.

Consensus Memory

Sedra's shared, ordered memory for many agents at once. Vision.

CTA

Custom Tokenized Asset. A native way to own what machines create, with provenance and royalties. Planned.

Agent

Software that acts on its own. Sedra is the neutral ground it stands on.

wSDR

Wrapped SDR on Polygon, backed one-to-one by a public reserve you can check. Wrap and unwrap at bridge.sedracoin.com.

Sedrian

A member of the Sedra community.

Common questions

Do I need to be technical?

No. You can use a wallet, buy SDR, and use Metacore with no technical knowledge. Mining and running a node are a little more involved, and the desktop app makes them close to one click.

Is Sedra live?

Yes. The network, mining, wallet, explorer, desktop app, and Metacore are all live. Some deeper features are still rolling out, and we mark those clearly.

Are my old coins safe?

Yes. Every existing balance is preserved, and old wallets keep working. Import your recovery phrase into any Sedra wallet and let it scan.

My balance shows less than I had. Did I lose coins?

No. Your coins are on the chain under your recovery phrase, not in the app. A low number means the wallet has not finished finding all your addresses. Update to the latest version, re-import, and let the scan run. See My balance looks wrong.

I can't see coins I mined or held before the restart.

Every on-chain balance carried over. Import your old recovery phrase and give the scan time. If those funds were on an exchange or a third-party service rather than your own wallet, contact that service, since only you and they hold those keys.

Do I have to reinstall the phone app when you fix something?

Not for wallet updates. The Android app loads the live web wallet, so wallet fixes reach you automatically. Just fully close it and open it again. Only the desktop app needs a new install for its updates.

I turned on earning but the desktop app shows zero.

Earnings appear once your machine finishes verified, paid tasks. Make sure your wallet is open, a local model is running, and you are on the latest desktop version. Earnings for a task are settled by the network, so they can take a moment to show.

Is there staking?

No. Sedra is proof of work, so SDR is earned by mining or by doing Metacore work, not by staking. Be careful with any site offering to stake your SDR for you.

Why do I pay to use Metacore?

Because real machines do real work for you, and they are paid in SDR. You see the price before you pay, and you are refunded if the answer cannot be verified.

Is this investment advice?

No. These docs are information about how Sedra works, not financial advice or a promise of return.

Links

• Site: sedracoin.com
• Metacore: app.sedracoin.com
• Wallet: wallet.sedracoin.com · Explorer: explorer.sedracoin.com
• Mining pool: sedracoin.com/mining
• wSDR Proof of Reserve: sedracoin.com/reserve · Bridge: bridge.sedracoin.com
• Whitepaper: whitepaper · Litepaper: litepaper
• Code: github.com/sedracoin
• Community: Telegram · X