Xpectrum: own what lives on-chain

Everything on Xpectrum is on-chain and publicly readable. You do not need an API key, an SDK, or the Xpectrum frontend to query a collection, a listing, or a provenance hash. This page covers the view calls you will reach for most.

Endpoints

Network	RPC	Explorer
Mainnet	`https://octra.network/rpc`	`https://octrascan.io`

Xpectrum runs on Octra mainnet.

Calling a view function

View functions are read through octra_callProgramView with the contract address, method name, and an argument array:

curl -X POST https://octra.network/rpc \
  -H "Content-Type: application/json" \
  -d '{
    "method": "octra_callProgramView",
    "params": ["<contract_address>", "get_contract_info", []],
    "id": 1
  }'

Collection (Xcollection / XpectrumGenesis)

Method	Args	Returns
`get_contract_info`	none	`name\|symbol\|total_supply\|owner`
`owner_of`	`token_id`	owner address
`get_token_info`	`token_id`	pipe-delimited token detail
`token_uri`	`token_id`	metadata URI
`royalty_of`	`token_id`	royalty bps
`get_current_phase`	none	active mint phase
`get_phase_info`	`phase`	phase config
`get_provenance_hash`	none	64-char hash, or `""` if unset
`get_holders_page`	`offset, limit`	page of current holders
`get_pending_proceeds`	`addr`	claimable balance

Marketplace (Xmarket)

Method	Args	Returns
`get_market_info`	none	market-level stats
`get_token_listing`	`contract, token_id`	active listing for one token
`get_listings_for_collection`	`contract`	active listings in a collection
`get_listings_page`	`offset, limit`	paginated active listings
`get_offer`	`offer_id`	offer detail, including `offer_is_collection`
`get_total_volume`	none	lifetime settled volume

Verifying a collection

Reading get_provenance_hash() and recomputing it from the collection’s published metadata is enough to confirm a frozen collection was not altered after mint. The xpress CLI automates this end to end (xpress verify <collection_address>). See Provenance for the algorithm.

All contract state is public. A non-empty get_provenance_hash() plus a matching recomputation plus mutability == "frozen_by_provenance" is the full trust basis. You verify it yourself; you do not take our word for it.

Overview

Network

Standards

Contracts

Platform

Developers

Resources

RPC Reference

Endpoints

Calling a view function

Collection (Xcollection / XpectrumGenesis)

Marketplace (Xmarket)

Verifying a collection

​Endpoints

​Calling a view function

​Collection (Xcollection / XpectrumGenesis)

​Marketplace (Xmarket)

​Verifying a collection

Endpoints

Calling a view function

Collection (Xcollection / XpectrumGenesis)

Marketplace (Xmarket)

Verifying a collection