state_getStorageAt - Bittensor RPC Method

Returns the SCALE-encoded storage value for a given key at a specific block hash. This is equivalent to state_getStorage with an explicit block hash parameter. Use it to read historical on-chain state at any past block on Bittensor, enabling time-travel queries for analytics, auditing, and debugging.

Parameters

Response

Code Examples

Use Cases

• Historical balance queries -- Read account balances, staking positions, or subnet parameters as they existed at a specific block.
• Analytics and reporting -- Build time-series data by reading the same storage key across a range of block hashes.
• Debugging -- Verify what on-chain state looked like at the block where an issue occurred.
• Audit trails -- Prove that a specific value existed on-chain at a given point in time.

Notes

• Requires an archive node. Non-archive nodes only keep recent state (typically the last 256 blocks).
• The returned value is SCALE-encoded. Decode it using the type information from the runtime metadata at the same block.
• The example above uses the well-known :code key (0x3a636f6465) at a real Bittensor block hash. Replace it with the storage key you actually want to inspect.
• To determine the correct storage key for pallet state, use state_getMetadata and the Substrate storage key hashing scheme.

Related Methods

• state_getStorage -- Read storage at the latest block (or optionally at a given hash)
• state_getStorageHash -- Get the hash of a storage value instead of the full value
• state_getStorageSize -- Get the byte size of a storage value
• state_queryStorage -- Query storage changes across a range of blocks
• state_getKeysPaged -- Enumerate storage keys to discover what to query