# _get_proof_from_operations · FT4 Rell API · Chromia Docs (concept)

> function _ get_ proof_ from_ operations(all_ operations: list<gtx_ operation>, gtx_ transaction: gtx_ transaction, require_ anchored_ proof: boolean): (tx_

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.iccf/_get_proof_from_operations/

FUNCTION

# \_get\_proof\_from\_operations

```signature
function _get_proof_from_operations(all_operations: list<gtx_operation>, gtx_transaction: gtx_transaction, require_anchored_proof: boolean): (tx_hash: byte_array, confirmation_proof: confirmation_proof, block_header: block_header)?
```

[Source](https://gitlab.com/chromaway/ft4-lib/src/development/rell/src/lib/iccf/module.rell#lines-257)

Returns the `confirmation_proof` corresponding to the given transaction if there is any present in current transaction.
It also returns transaction hash and a decoded version of the block header in the proof.

**Parameters**

* **all\_operations** — All operations in the current transaction
* **gtx\_transaction** — The transaction to check
* **require\_anchored\_proof** — Whether or not we require inclusion of a proof that the block containing the transaction has been anchored in cluster anchoring chain

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-rell/-f-t4%20-library/lib.iccf/_get_proof_from_operations.html)Generated API reference, mirrored from the live docs