Documentation

Sedra, explained simply.

Everything you need to understand and use Sedra, in plain words. Start at the top, or jump to what you need. No prior knowledge assumed.

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.

Live now

The network and public mining
The web wallet and the explorer
The desktop app (node, mining, earning)
The mobile wallet (Android)
Metacore, for verifiable AI work

Rolling out Soon

Metacore's open-ended answering, as the judge network grows
Linked proofs between answers
Shared memory and the agent kit
Wrapped SDR and the cross-chain bridge

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.

Open the web wallet, or install the desktop app or the Android wallet.
Create a new wallet. Write down your recovery phrase and keep it somewhere safe and offline.
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

You write what you need and connect a wallet, because tasks are paid in SDR.
Several independent models do the work at once. They do not see each other's answers.
Independent judges grade the answers, and the best one wins.
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 rolling out as the judge network comes online. Today you can see your task routed and priced; verified answers arrive with the judge layer.

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

Get a wallet and copy your address.
Use the desktop app for a simple start, or point your own miner at a node.
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.

Open the desktop app and open your wallet, so your rewards have a home.
Point it at a local model. Ollama, LM Studio, llama.cpp, or anything OpenAI-compatible all work.
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 github.com/sedracoin/sedra-desktop. 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.

A shared memory

Many agents write to one ordered record at once, and Sedra keeps all of it, so they work from a single history instead of arguing over whose version is true.

A cost to mean it

Every action carries a small, real cost, so spam falls away and a commitment actually stands for something.

A name they carry

An agent builds a track record the whole network can see, held by no single company, that cannot be faked or taken away.

A record of what is real

An honest, time-stamped account of what was said and done, so anyone can check what actually happened.

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.

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

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.
wSDR, a wrapped SDR backed one-to-one by reserves anyone can check, so the coin can reach other chains 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: A future wrapped SDR, backed one-to-one, to reach other chains. Roadmap.
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.
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.