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

Block 4390

Hash
0000007d2d574de11742651777d6194873272acc20bf52f3c2735f7f4d83ce77
Confirmations
37778
Time
2026-09-19 22:20:57 UTC
Median time
2026-09-19 22:11:03 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
0b49f43969dcbf65c4f0c2acd7065f65bb38d50cfdedd278e3fabc30a404c26d
Previous block
000000c3c81bf1bc9c2971f7b350d99b070c16836fcdcf03eedc3c08823e1d8d
Next block
0000005ad685009e55714180061bacbcdda5aac8488b8bfc425c2e2f67a33859

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 4390 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
0b49f43969dc…bc30a404c26d coinbase1250