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universe-index-atomicals

Universe ARC-20 index and Marketplace v1 authority

Revision 670030e50071

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Universe ARC-20 token explorer feed and the durable Marketplace v1 protocol authority.

Offers

Raw

Make an offer, cancel it, and accept one, with the checks each side owes the other.

Universe implementation Verified 2026-08-31 Metadata & Sources

Describes what a Bitcoin Universe service actually does today. It is not a statement about the protocol in general.

Page ID
guides/offers
Normative authority
Universe implementation documentation
Networks
mainnet
Documentation version
2026.08
Audience
holder, integrator
Owner
bitcoin-universe-docs
Sources
  • Supported networks: mainnet.
  • Status: Universe implementation. Offer gates default to off, and buy or offer execution additionally requires an exact fee script to be configured.
  • An offer is an intention, not a transfer.
  1. Obtain an owner session for the funding address.
  2. Submit the offer with the asset, the amount, and any expiry.
  3. Sign what the service returns, with the exact scope it specifies.

Your funds are not moved by making an offer. They move only when a settlement transaction is signed and broadcast.

Call the cancel step for the offer identifier, with a current owner session. Cancel before the offer is accepted. Once acceptance begins, the flow moves to settlement.

As the asset owner:

  1. Obtain an owner session.
  2. Read the offer: the exact asset, the exact amount, and the exact payment script.
  3. Confirm the asset is the Atomical ID you intend, not just a name or a ticker.
  4. Accept, then sign what the service returns.
  5. Verify settlement.

The same independent views must agree as for a listing: verified name or ticker winner, Bitcoin Core, the Atomicals provider, and an unchanged checkpoint across the bracket. Buyer funding inputs must be confirmed and uncoloured.

Check Why
The Atomical ID Names and tickers can be confusable
The exact amount Not a rounded display figure
The exact payment script So the payment cannot be redirected
The signature scope It must bind the payment output exactly
Your funding inputs are uncoloured Or you spend an asset to fund a purchase
Failure Meaning
Offer expired Make a new one
Asset moved The owner moved it. The offer cannot settle
Funding input coloured Use cardinal funds
Gate disabled Offers are not enabled on this deployment

Verify settlement. See verify settlement.

Marketplace v1.