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

Block 637

Hash
000001b0c6d7de384eddfb7192b6f26a54ad54d475ca5fcafded2ebef3d7c624
Confirmations
40527
Time
2026-09-15 18:43:23 UTC
Median time
2026-09-15 18:35:52 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0011265153
Bits
1e0377ae
Merkle root
a51382efd072c9f45bf836863f7826dce79efbeed976ff14e1af9777a98d0cdf
Previous block
0000002f913cabb52f9ac293dbb2cfc637ecff3ad96e8ab19701fb688f2332eb
Next block
0000009d50a6907668e1109317874101c1779b51e616c2e7618db42bd9e2b9be

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 637 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
a51382efd072…9777a98d0cdf coinbase1250