Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 19076

Hash
0000011234957a7c72c247c6cfe621823ff7bedece9b6aebbabd717b4644a6a3
Confirmations
22572
Time
2026-10-10 02:49:48 UTC
Median time
2026-10-10 02:41:16 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
f22afaf1ca615531c63801fe8762d995fb4f1fd7797932273a448377f83219b5
Previous block
000000a2c4107405d899eb5336ce6723774a9cd356846a9b1ef56c14e38d12eb
Next block
000000569bc72b376a2cc1844bc4377ee75941d29fab1f059231c0fa7ed9fe42

ML-DSA-44 block signature (M2)

M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.

Block 19076 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
5438520a7e1193b2c7a1ea045bb338d8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f22afaf1ca61…8377f83219b5 coinbase1250