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

Block 18324

Hash
000000b3313936d8b91ceae05f0ab9f3b2ec31ed000f5740b81523113049d2d5
Confirmations
23924
Time
2026-10-09 05:53:29 UTC
Median time
2026-10-09 05:44:37 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
87dbd183a4499bd680814557305dabd6cf74134d559d269a8df0afdbb5faca55
Previous block
000000e87cc85de779a89574e2fa65e22e57f4a4aa3643df15d615d66b9a4e10
Next block
0000004af7a296d90d5fca898b9447d1df3a989cbab3e0f910e310a8a865724a

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 18324 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
2824015f8a44db57b823c0b8f4400d38… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
87dbd183a449…afdbb5faca55 coinbase1250