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

Block 221

Hash
000001efdc80d999865d647d0a2d2927cc4ca210eff89ed75c00bcc5d7ebe16a
Confirmations
41653
Time
2026-09-15 08:17:48 UTC
Median time
2026-09-15 08:10:17 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0011265153
Bits
1e0377ae
Merkle root
101b63ce1e8e29cc544661045cb93e868efa82372b118ce8eedb0afe736087ee
Previous block
000001abfbd8db3e39d11fd3f15e85a8134706d1930bb38b94ce6b6a96f8845a
Next block
000001d83de46e633076b3ae55fbd3c5bbb80375df10ff1de12969c6c7262e0f

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 221 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
101b63ce1e8e…0afe736087ee coinbase1250