ckBTC reserves Fully backed

Backed by BTC held by the minter on Bitcoin.

100.377%

reconciled backing

Every ckBTC is backed: net reserves are 100.377% of supply after setting aside 0 owed to withdrawals in flight. The surplus of 0.84620218 is fees the minter has accumulated. No complete native-chain reading is available right now, so this rests on the minter's own accounting.

Supply on IC

224.53818

mxzaz-hqaaa-aaaar-qaada-cai icrc1_total_supply

Minter reserves

225.384382

first party: the minter's own accounting

Native chain

n/a

unavailable, 19% of reserves sampled

Withdrawals in flight

0 requests, burned on the IC, native funds not yet final

Deposits awaiting mint

not exposed

Raw ratio

100.377%

reserves over supply, no adjustments

Tolerance

0.10%

from this asset's own run-to-run noise, ceiling 1%

Checked

7 min ago

Reconciliation

	Line	Amount	Trust	Note
	ckBTC supply on the IC	224.53818	first-party	icrc1_total_supply of the ledger canister
+	Reserves, minter's own accounting	225.384382	first-party	reported by the minter canister, which holds the threshold key
-	Withdrawals in flight	0	first-party	already burned on the IC, native payout not sent or not final yet: these funds belong to the withdrawers
-	Deposits awaiting mint	unknown	first-party	not exposed by this minter, treated as zero (this can only understate the backing)
	Net reserves backing the supply	225.384382	derived	reserves minus withdrawals in flight minus deposits awaiting mint
	Surplus over supply	0.846202	derived	net reserves minus supply
	Fees held by the minter	unknown	first-party	this minter does not publish a fee total: its surplus is accumulated fees, which we cannot itemize

Native sources

Source	Reading	Block	Coverage	Note
mempool.space	43.782171	974879	19% of reserves	1 of 2 addresses failed
blockstream.info	43.782171	974879	19% of reserves	1 of 2 addresses failed
Minter itself	225.384382		complete	ckBTC minter /dashboard and /metrics (NNS-controlled canister, its own UTXO accounting)

Over time

Reconciled backing ratio

ckBTC supply

Minter reserves

Supply change per interval (mints minus burns)

Canisters behind it

Canister	Role	Cycles	Runway	Health
ckBTC Mintermqygn-kiaaa-aaaar-qaadq-cai	Minter	859.3 T	~23 d	At risk
ckBTC Ledgermxzaz-hqaaa-aaaar-qaada-cai	Ledger	212.9 T	~80 d	Healthy

A minter running low on cycles is a reserve risk too: it holds the threshold key that moves the native funds. Lifeline alerts cover both canisters, and any controller or code change on them.

Native addresses

Main address (change and consolidation)

bc1q0jrxz4jh59t5qsu7l0y59kpfdmgjcq60wlee3h

Depositor address (threshold ECDSA)

a7ady-jiaaa-aaaah-arexa-cai

managed addresses

139

utxos available

999

submitted txs

submitted sats

5871193

unconfirmed change sats

3846244

min confirmations

quarantined sats

167495

known utxo total sats

22544308468

addresses in table

How to verify this yourself

Read the supply on the IC: call icrc1_total_supply on the ledger mxzaz-hqaaa-aaaar-qaada-cai (any IC client, or the dashboard link above).
Read what the minter says it holds: open the minter's own dashboard at https://mqygn-kiaaa-aaaar-qaadq-cai.raw.icp0.io/dashboard. The minter is an NNS-controlled canister; its code is public and its upgrades are voted on.
Check the native chain: look up the addresses above on any explorer. ckBTC funds sit in one address per depositor, all derived from the IC's threshold key, so a full check sums every address in the minter's UTXO table.
Subtract withdrawals in flight (burned on the IC, funds not yet final on the native chain) and compare with the supply. That is the reconciled ratio above.