> For the complete documentation index, see [llms.txt](https://docs.derupt.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.derupt.io/latest/contracts/.derupt-miners.md).

# .derupt-miners

**The following function calls are only callable by .derupt-core-yyyymmdd:**

* log-mine
* log-mining-claim-reward

{% hint style="info" %}
Work in Progress
{% endhint %}

```
;; title: derupt-miners
;; version: 1.3.1
;; summary: Miners Contract
;; description: used to log mining and mining reward claims

(define-constant ERR-UNAUTHORIZED (err u100))
(define-constant ERR-NOTFOUND (err u101))

;; Get Derupt core contract
(define-read-only (get-derupt-core-contract)
  (contract-call? .derupt-feed get-derupt-core-contract)
)

;; Log Mine
(define-public (log-mine (miner principal) (mine-amounts (list 200 uint)))
  (let 
    ((derupt-core-contract (unwrap! (get-derupt-core-contract) ERR-NOTFOUND))) 
    (asserts! (is-eq contract-caller derupt-core-contract) ERR-UNAUTHORIZED)
    (print { event: "mine", miner: miner, mine-total: (fold + mine-amounts u0), mine-amounts: mine-amounts })
    (ok true)
  )
)

;; Log Mining Reward Claim
(define-public (log-mining-reward-claim (claimHeights (list 200 uint)))
  (let 
    ((derupt-core-contract (unwrap! (get-derupt-core-contract) ERR-NOTFOUND))) 
    (asserts! (is-eq contract-caller derupt-core-contract) ERR-UNAUTHORIZED)
    (print { event: "mining-reward-claim", miner: tx-sender, claimHeights: claimHeights })
    (ok true)
  )
)
```