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

Block 17991

Hash
0000005581c84fc6271fd0bc961da27abdc7ef374316f22378a70f30a92e1a84
Confirmations
24228
Time
2026-10-08 20:33:46 UTC
Median time
2026-10-08 20:25:44 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
963304b07290340f38425e9ed925c06f5ccfaafe68cdbf5b798556908cc3fc60
Previous block
00000021de1f8fcddf4c5cc06a600bb3365931e0289b191e20570fddfb8c26f2
Next block
00000039326b08bc286f35aa388ac98f5f0549d1173d74d2288b66a98f6a854b

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 17991 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
963304b07290…56908cc3fc60 coinbase1250