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

Block 19043

Hash
0000011ce4251fcdccf5d8769f01905904af9a3ff444a1d2465b9d0b508faa13
Confirmations
23006
Time
2026-10-10 01:52:38 UTC
Median time
2026-10-10 01:44:45 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
3d4c0b7ffcd1f98f0db8cc3b01bfd86310fe7c6c7114b9c641ca634abde01a14
Previous block
00000003aac0b7d4572f2523b95ed4314aa9187c9b0986eef63b9c658d426c5d
Next block
000000d74ff8c7d45eb8e2f7039909edf20a7c89b834f05788341593ebd67df7

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 19043 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
2b0ee2ef3db21daec07c04fd2fc40a9a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3d4c0b7ffcd1…634abde01a14 coinbase1250