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

Block 4549

Hash
000000c90b8e9a343250e8832543bcaf61f90f0dc1ac80f0322dd37a3624bd92
Confirmations
37728
Time
2026-09-20 03:11:58 UTC
Median time
2026-09-20 03:02:15 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
3d33f0eb19a5a659af7dad944019d816a4c514fc0754420635968f079cfaf7d6
Previous block
0000004e7e9abd8a53786e1772bdbdb43bb004a9a63341ecfdebb6d95f6a0676
Next block
000000c8d66985c100ff586bb4ed0d88df0a8e659f877ef853fed828954ad03f

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 4549 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
3d33f0eb19a5…8f079cfaf7d6 coinbase1250