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

Block 4991

Hash
000000990d66879b5cf6dfc058d229d5aef476e77bca77dd9dcb93aa6f1c614a
Confirmations
37152
Time
2026-09-20 16:43:00 UTC
Median time
2026-09-20 16:33:49 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
cea02d664918be544e8d7e43b863f0f7b2622fa225feb1ce3883b6f8b93a0e1f
Previous block
00000000235cecfc9c6c8c0286bd440e0f99d6de688705075f0dc392cbe3355d
Next block
0000000b806de24442f717eb4f1e7a3de411db104b69c578611fb5667ca12969

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 4991 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
cea02d664918…b6f8b93a0e1f coinbase1250