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

Block 4215

Hash
0000008f7e6e482ad20375e6f0feb407f8702a7b3f5793a1d084ad7a38e43b39
Confirmations
37914
Time
2026-09-19 16:55:59 UTC
Median time
2026-09-19 16:47:11 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
a06a8cbf6f6ba52321fbfc3e580053003005a0694807934a4b2854636f7581d3
Previous block
0000005a78500091884fa8ac1194580406ba8888fd896bc3f355dfb32ed7e081
Next block
00000065acb59c2d99979bf5cbb321fc6b70044a76c94ef6c4268abd46e64166

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 4215 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
a06a8cbf6f6b…54636f7581d3 coinbase1250