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

Block 3901

Hash
0000021b56436c0b43ce6ad05bc604b21d9dea207b2569dd22bb469fddf3f983
Confirmations
38167
Time
2026-09-19 07:55:48 UTC
Median time
2026-09-19 07:47:55 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0011265153
Bits
1e0377ae
Merkle root
7ff97b42439b1aee164366e4508318964c291347b6d63716578bd0f5f09c513c
Previous block
000003100567778711aeedf98ffb0d387918dec1c3a3d3b03c369d617a0bd448
Next block
00000234130eb64fbec00a7fe018da1b84a582c93b673261a5d41ee38031fd86

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 3901 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
7ff97b42439b…d0f5f09c513c coinbase1250