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

Block 18295

Hash
000000ee1e02dee77d08f69600c174a3087fbac72bac2c63e87eb8376ad29a9b
Confirmations
23839
Time
2026-10-09 05:03:54 UTC
Median time
2026-10-09 04:55:23 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
0ac832da8c6626add691d7e3900c815194b76de4cf3f320e39bbfb259d628d2d
Previous block
000000b982d9bc716d22582602b189ddd2966aa7b51c834f88290f0ae0dae3f5
Next block
00000108c7eb1e6c8ca5cfb36bf3e815023e42cfddd2966760ef962cab9bda33

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 18295 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
ca34d940b01f645f40768addb574bdb6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0ac832da8c66…fb259d628d2d coinbase1250