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

Block 18296

Hash
00000108c7eb1e6c8ca5cfb36bf3e815023e42cfddd2966760ef962cab9bda33
Confirmations
23839
Time
2026-10-09 05:05:34 UTC
Median time
2026-10-09 04:57:33 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
f0b3ba801b7963e1918b175051c7f734eb5b3e5945e1c8f29649a22528130f90
Previous block
000000ee1e02dee77d08f69600c174a3087fbac72bac2c63e87eb8376ad29a9b
Next block
0000003d16c01ada494b0f4c059e5bfbfa2aa601bd486152da9e2f44df36d6c8

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 18296 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
4230004b04fa67958137987fbe51154c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f0b3ba801b79…a22528130f90 coinbase1250