The Bitcoin Blockspace Meter

A block is a fixed quantity of blockspace, consumed once and never again.

A blockspace token is a receipt for part of that consumption.

Backing is bytes bought for a token’s purpose; where tokens bought the same bytes, the bytes divide among them.

Every byte of every block is counted in exactly one place.

Read the whitepaper →

The latest block in the books

Block 974,399 · 3 Nov 2026 · 1,747,123 B

claimed 530,083.21carriage 56,978.79burned 0unclaimed 1,160,061

530,083.21 + 56,978.79 + 0 + 1,160,061 = 1,747,123 B

Also claimed here: 55,893.5 B that sit in earlier blocks — the enablers of this block's dedicated transactions. They are counted in the blocks they sit in, so they are not in this bar.

Every byte of block 974,399, counted exactly once →

The three books

Three answers to “how much”, kept in parallel

Book	The one line	Written so far
A · inclusive	Bytes of every transaction built for the token, pooled among its claimants. Fees follow this book.	135 GB
B · regional	Of those, the bytes the token’s operation actually occupied.	129 GB
C · content	Of those, the bytes of the artifact body itself.	36.6 GB

A null in the regional book means not measured — never zero.

The trust anchor

Every byte counted exactly once.

For every block in the books, the four categories — claimed, carriage, burned, unclaimed — sum to the block’s exact size, and no byte is in two. The reader can add the numbers. Below: the whole written range at once.

claimed 129,086,980,386.81carriage 12,193,579,390.19burned 9,357,319unclaimed 639,227,980,104

129,086,980,386.81 + 12,193,579,390.19 + 9,357,319 + 639,227,980,104 = 780,517,897,200 B

Also claimed here: 6,283,922,774.34 B that sit in earlier blocks — the enablers of this block's dedicated transactions. They are counted in the blocks they sit in, so they are not in this bar.

books written to block 974,399 · of 781 GB counted so far · attributed 17.3% of the written range

By token

The tokens with the most blockspace

Top 15 of 126,992,879 tokens by attributed blockspace — ranked by bytes, never by count · up to block **974,399**
#	Token	Protocol	Attributed (MB)	Ops	Fees	Issued
1	UNCOMMON•GOODS(1:0)	Runes	25,052.2	172,073,825	278.8283 BTC	840,000
2	DIESEL(2:0)	Alkanes	11,126.6	103,531,279	38.7732 BTC	880,004
3	Tether(omni/31)	Omni	6,503.5	19,038,761	5,244.5043 BTC	—
4	sats	BRC-20	3,790.7	21,280,369	263.2656 BTC	779,971
5	quark(9125f03bcf9325…)	ARC-20	2,607.3	1,961,603	143.7164 BTC	822,588
6	COOK•THE•MEMPOOL(840000:65)	Runes	845.0	4,450,374	113.9703 BTC	840,000
7	doge	BRC-20	633.7	6,121,217	13.2309 BTC	779,978
8	neutron(1d00ffffa6d003…)	ARC-20	522.6	607,718	14.9518 BTC	820,831
9	dragon(dc0038f5313f5f…)	ARC-20	492.1	619,529	12.3690 BTC	821,900
10	dmt-nat	TAP	443.7	1,364,036	56.8774 BTC	817,709
11	sophon(360533d31e6f3c…)	ARC-20	411.4	539,120	10.7801 BTC	823,209
12	eorb	BRC-20	368.1	2,110,027	59.6567 BTC	791,973
13	𝛑	BRC-20	356.6	535,598	27.4973 BTC	789,165
14	mask	BRC-20	355.1	2,119,709	11.8497 BTC	780,029
15	Z•Z•Z•Z•Z•FEHU•Z•Z•Z•Z•Z(840000:1)	Runes	255.1	1,200,861	333.6768 BTC	840,000

All 126,992,879 tokens, with the book and unit toggles →

Over time

Blockspace consumed, blockspace attributed

Chain bytes against attributed bytes, cumulative

Two panels, two scales, one shared height axis. The gap between their shapes is the unclaimed reservoir.

books written to block 974,399

Chain bytes consumedAttributed, the inclusive book

Table view

Both series are clipped to the books frontier, so they describe the same blocks as every other page. All three charts, with the unit and bucket controls →