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

Block 4490

Hash
0000008a182cb53eda0d20316b85af09a0c3be80ceb926e0b18dd1a0a371ed64
Confirmations
37271
Time
2026-09-20 01:23:04 UTC
Median time
2026-09-20 01:12:42 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
9779ca7cfc8801ac1979a923b24722eb89d9484e59289fa3f7e0a435a1eb1197
Previous block
000000a68dfbc07c0ad14fe0300a6912f9366d1bbb5e04759e6dbfc8cbaa345c
Next block
0000000bc8ee151f272a20c5f8dc830bcc9daaaa352c6a7c7dc526a8fdbc28ac

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 4490 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
9779ca7cfc88…a435a1eb1197 coinbase1250