chain_unsubscribeFinalisedHeads - Bittensor RPC Method

Cancels a WebSocket subscription that was started with chain_subscribeFinalisedHeads (British spelling). This is a legacy alias for chain_unsubscribeFinalizedHeads and is functionally identical. Provide the subscription ID returned when the subscription was created.

Code Examples

This method requires a WebSocket connection and is not available over HTTP.

WebSocket (wscat)

wscat -c wss://api-bittensor-mainnet.n.dwellir.com/YOUR_API_KEY \
  -x '{
    "jsonrpc": "2.0",
    "method": "chain_unsubscribeFinalisedHeads",
    "params": ["SUBSCRIPTION_ID"],
    "id": 1
  }'

Use Cases

• Legacy client support -- Used by older clients or libraries that use British spelling (Finalised vs Finalized).
• Subscription cleanup -- Cancel a finalized-heads subscription when you no longer need finality notifications.

Notes

• This is a British spelling alias. Modern clients should use chain_unsubscribeFinalizedHeads.
• Always unsubscribe when done to prevent server-side resource leaks.
• WebSocket-only; cannot be called over HTTP.

Related Methods

• chain_unsubscribeFinalizedHeads -- Canonical (American spelling) form
• chain_subscribeFinalizedHeads -- Start a finalized-heads subscription
• chain_unsubscribeNewHeads -- Cancel a best-block header subscription
• chain_unsubscribeAllHeads -- Cancel an all-heads subscription