Transactions

multisig-approve

Records the signer's approval for a pending multisig operation without dispatching anything. The opening approval (omit timepoint; reserves a deposit from the signer) embeds the full call in the extrinsic, so every co-signer can recover the call — and a ready-to-run command — straight from multisig pending, with no out-of-band call data. Intermediate approvals (pass the opening timepoint) go up hash-only, which stays cheap even for huge calls like a runtime-upgrade blob. It never executes — once threshold - 1 approvals exist, the last signatory must send multisig_execute with the full call. Approving twice from the same signer, or with a mismatched timepoint, threshold, or signatory set, fails.

Signer	Pallet	Wraps
`coldkey`	Multisig	`Multisig.as_multi`, `Multisig.approve_as_multi`

Parameters

Parameter	Type	Required	Description
`threshold`	integer	yes	Number of approvals required to execute, counting the signer. Together with the full signatory set it identifies the multisig account, so it must match on every approval.
`other_signatories`	array	yes	The other members of the multisig (every signatory except the signer), as a JSON list of addresses. The same set must be given on every approval; order does not matter (sorted automatically).
`call`	object	yes	The inner call to dispatch from the multisig account, as a JSON object {"op": <intent name>, ...args}. All approvals must describe the identical call — it is matched by hash. Its arguments must be fully explicit, since it runs as the multisig account, not the signer's wallet.
`timepoint`	object	no	Block height and extrinsic index of the approval that opened the operation, as a JSON object {"height": ..., "index": ...}. Omit on the first approval; required on every later one (read it with the multisig query).

Address parameters (--hotkey, --coldkey, --dest, ...) accept a raw ss58 address, an address-book or proxy-book name, or a local wallet/hotkey name.

CLI

Preview with --dry-run (shows fee, effects, and policy result without submitting), then submit:

btcli tx multisig-approve \
  --threshold <int> \
  --other-signatories <a,b,c> \
  --call '<json>' --dry-run
btcli tx multisig-approve \
  --threshold <int> \
  --other-signatories <a,b,c> \
  --call '<json>' -w my_coldkey

Python

import bittensor as sub
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = sub.MultisigApprove(threshold=0, other_signatories=[...], call={...})

async with sub.Client("finney") as client:
    plan = await client.plan(intent, wallet)   # fee, effects, policy — no submission
    result = await client.execute(intent, wallet)
    if not result.success:
        print(result.error.code, result.error.remediation)

Or build it by op name, as an agent would:

await client.execute_tool("multisig_approve", {...}, wallet)