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

Block 4240

Hash
0000004aa83e2e66eed992193208f62524697db22c05ed42ba630908de46190f
Confirmations
37110
Time
2026-09-19 17:45:59 UTC
Median time
2026-09-19 17:33:36 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
343b6bab9b18fdc6ac386e1fced168bc93a80ea37d81ce6027123ebd9ef48409
Previous block
000000b6bafbadebc1ef99fe6f5bfd0e8062059ff5b0b5e87d52c0110ec3934e
Next block
00000078bfeafec1e718b59c228d521401e294da204774f9deca052ddb3e1f29

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 4240 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
343b6bab9b18…3ebd9ef48409 coinbase1250