> For the complete documentation index, see [llms.txt](https://docs.heima.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.heima.network/featured-dapps/idhub/glossary-of-terms.md).

# Glossary of Terms

<table><thead><tr><th width="204.12060301507535">Term</th><th>Definition</th></tr></thead><tbody><tr><td>Auction (Parachain)</td><td>Parachain auctions are how non-common-good parathreads win a slot to become a parachain</td></tr><tr><td>Aggregated Identity</td><td>An identity that consists of multiple data streams from web3 &#x26; web2 accounts and platforms. </td></tr><tr><td>Bounty</td><td>A mechanism which works in some sense as the reverse of a Treasury Proposal, allowing the Polkadot Council to indicate that there is a need to do some task for the Polkadot network and allowing users to receive DOT in return for working on that task.</td></tr><tr><td>Council (Polkadot)</td><td>An on-chain entity that consists of several on-chain accounts. The Council can act as a representative for "passive" (non-voting) stakeholders.</td></tr><tr><td>Decentralised Identity</td><td>An identity that consists of multiple decentralised data points across web3 platforms and blockchains. A D-ID is managed and accessed by decentralised applications.</td></tr><tr><td>Governance</td><td>The process of determining what changes to the network are permissible, such as modifications to code or movement of funds. The governance system in Polkadot is on-chain and revolves around stakeholder voting.</td></tr><tr><td>Identity Owner</td><td>The user who has provided access to his various accounts and in this way creates his aggregated identity. </td></tr><tr><td>Identity Subject</td><td>A label added to the the users aggregated identity determined by their on-chain credentials. e.g. 'Longterm Holder'</td></tr><tr><td>NFT</td><td>A non-fungible token is a unique and non-interchangeable unit of data stored on a blockchain.</td></tr><tr><td>Referendum</td><td>A vote on whether or not a proposal should be accepted by the network. Referenda may be initiated by the Governance Council, by a member of the public, or as the result of a previous proposal.</td></tr><tr><td>Registrar</td><td><p>After a user injects their information on-chain, they can request judgement from a registrar.</p><p>Registrars can set a fee for their services and limit their attestation to certain fields. </p></td></tr><tr><td>(to) Second (Polkadot)</td><td>Agreeing to a proposal by putting up tokens equal to the original bond</td></tr><tr><td>TaskFI</td><td>Completing tasks to earn tokens</td></tr><tr><td>Treasury (Polkadot)</td><td>The Treasury is an account that accumulates funds by inflation as well as by taking a portion of transaction fees and slashes. </td></tr></tbody></table>