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

Block 5640

Hash
000000bfc60c7d101d5379dc9518c338b47854245ca3cc03c90b5210d69b3872
Confirmations
36491
Time
2026-09-21 15:59:32 UTC
Median time
2026-09-21 15:49:59 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
7f892ee6a40299ec35df9a9f0fb85136c1567d02857b22e69c41c46b039deb64
Previous block
0000004baccde21270a34e8ce8f25a050c2dc5efb0209422ad58aad16b86dea7
Next block
0000003adedaf997e7b78db2aa4d9ba6490433fbc90eb9edef71a0b2f4b37f79

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 5640 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
7f892ee6a402…c46b039deb64 coinbase1250