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Xpectrum is the ownership layer for on-chain objects on Octra. The contracts, the token standard, and the trading infrastructure were all developed by us for Octra’s execution environment. The marketplace came first because ownership that cannot change hands is not ownership. It is the first surface, not the whole of it. Underneath it sits a machine-checked standard, a formally verified contract set, and storage that belongs to the chain rather than to a hosting provider. XNS-1 is our token standard for Octra. Every Xpectrum contract implements it, and any third-party contract that implements it is compatible with the marketplace automatically.

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What’s in the stack

Launchpad

Permissionless drops: three phases (GTD, FCFS, public), Genesis injection, on-chain whitelists, generator, and a commit-first reveal.

Marketplace

Fixed-price listings, individual offers, collection-wide bids. Royalties enforced on-chain at settlement, pull-based proceeds.

Circles

On-chain spaces per collection holding artwork, metadata and trait layers. Sealed content uses NFT ownership as the key.

Provenance

A hash committed on-chain before mint, re-derivable from public data. Tampering leaves permanent, machine-checkable evidence.

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What makes it different

Formally verified, not only audited. Every contract in the stack carries a machine-checked verification certificate: XNS-1, Xcollection, Xmarket, Xlist, and the factory. What the contract does is what the certificate says it does. Permissionless by construction. A full collection deploys from your own wallet in a single transaction at a flat fee. Nobody approves it, and Xpectrum holds no admin key over it afterwards. The chain holds the assets. Collections live in Octra circles: artwork, metadata, and trait layers, oct:// all the way down. No IPFS and no pinning service, so there is nothing to keep paying for to stop the art disappearing. Generative collections store the layers rather than baked images, and tokens are composited from chain state. Rendering is a view of state. Once that is true, an image is only the first render type. A token whose content is a running program has the same shape as one whose content is a PNG, and sealed circle content extends the same standard to assets you can prove you own without revealing what they are.

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Build on Xpectrum

XNS-1 Standard

The token interface for Octra. Implement it and your contract trades on Xmarket out of the box.

xpress

The open launch engine. Validate, generate, hash, deploy, and verify a collection from the command line.

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Status

Live on Octra mainnet. The app is at app.xpectrum.xyz.
Transactions on mainnet spend real OCT and are final. Check which network your wallet is connected to before minting or trading.