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

Block 18924

Hash
000000ed7113afa58ce4ff9c399b090e78c3a1170de2f5148aab4a399f26a34b
Confirmations
22255
Time
2026-10-09 22:30:49 UTC
Median time
2026-10-09 22:22:27 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
77bc9e90cf36d28f043c216d4ff7b9741b97ed460d094d87cc035d203b94734f
Previous block
0000002eadb4394084321b672fd1fadcf5d301fa7f52c9d113ad7fe2f38a372a
Next block
000000e3cd75c2d1f32f1ae37ab03bf077d7d682b292a37c61cc839c8b79aee4

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 18924 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
24ce752ea97506aae0a22584eff9d679… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
77bc9e90cf36…5d203b94734f coinbase1250