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

Block 4638

Hash
00000023fd0545410f3d76906167e8178bc2be02d45c8656a6c012a5042d9dac
Confirmations
36128
Time
2026-09-20 05:56:37 UTC
Median time
2026-09-20 05:46:41 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
838ae2b6ade2b441f21c66016d022c4b9d2ef76a2ce9550df8badb6200108dde
Previous block
0000004dd001065614245f9006e8aac6b5ad09fd03fcf9208851d0a1bc2e38a9
Next block
0000009a55ddd43a1893735819df5d825f54be94b686c5cacb3b6e360f5856cc

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 4638 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
838ae2b6ade2…db6200108dde coinbase1250