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

Block 4021

Hash
000000553af37b2f904ff2ba5f25dbec69628e338396dd87a27d137a9033848e
Confirmations
38133
Time
2026-09-19 11:04:14 UTC
Median time
2026-09-19 10:56:19 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0011265153
Bits
1e0377ae
Merkle root
75d27fc5a27ceb6e5ad3989b7127c3faa4da3d91c6622ca3772fc73c710ff48f
Previous block
00000352c971f89009306d385c7ff10a947c49eaad49fbed7e22fdfbb94f9dc4
Next block
000000aadeca1d2fcc230c023aeec2f7bbbfe242976a5c0707ed76ef38f13683

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 4021 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
No ML-DSA-44 block signature in this block

Transactions

txidInputsOutputsAmountFee
75d27fc5a27c…c73c710ff48f coinbase1250