create_pure
Call v149 → current #4Create a new account with no private key, only accessible via proxy .
View calls on chainCall Workflow
This diagram shows the call execution flow: starting with create_pure, passing through validation
(signature, nonce, mortality, fee payment), then pre-dispatch checks, followed by dispatch which emits events: PureCreated and modifies storage: Proxies, and finally post-dispatch where ExtrinsicSuccess is emitted and fees are settled.
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Used by: validatorsdeveloperswallets
The Big Picture
Pure proxies create accounts with no private key - only accessible via proxy.
Use Cases
- Create keyless cold storage
- Multi-sig controlled accounts
From Chain Metadata
See [`Pallet::create_pure`].
Input Parameters
Permissions
Origin
Unknown
Required Role
Permission data inferred from metadata. May be incomplete.
Requirements
- Sufficient balance for deposit
- No duplicate pure proxy exists
Effects
Events Emitted
Storage Modified
Postconditions
- Keyless account created
- Caller registered as proxy
- PureCreated event emitted
Side Effects
- Deposit reserved for the proxy relationship
Code Examples
import { ApiPromise, WsProvider } from "@polkadot/api";
import { stringCamelCase } from "@polkadot/util";
const provider = new WsProvider("wss://entrypoint-finney.opentensor.ai:443");
const api = await ApiPromise.create({ provider });
// Build create_pure call
const proxy_type = 0 as any /* ProxyType */;
const delay = 0;
const index = 0;
const call = api.tx[stringCamelCase("Proxy")][stringCamelCase("create_pure")](
proxy_type,
delay,
index
);Runtime Info
- Pallet Index
- 16
- Call Index
- 4
- First Version
- v149
- Current Version
- v393