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

Block 5661

Hash
00000021e57fe56161121d02542c02d37434700c33725aebcc4db0453248e6b7
Confirmations
36145
Time
2026-09-21 16:37:32 UTC
Median time
2026-09-21 16:28:16 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
5debb705093cb211d81a75b9fda56e69e8c9360fa314f734a0517b5e743ddb3b
Previous block
0000004dfec32e370f01968155e4d687c22277f17b5099c6388e63f2a717083f
Next block
00000083f8fadce2abe65a4a98f3f6dd3b0e0e56c4f40cb1e619bb886de974e0

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 5661 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
5debb705093c…7b5e743ddb3b coinbase1250