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

Block 1668

Hash
000000726f9e198b76c78aca2139134b1f264f267b64a9c609add2da56229c71
Confirmations
39612
Time
2026-09-16 21:05:32 UTC
Median time
2026-09-16 20:57:36 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0011265153
Bits
1e0377ae
Merkle root
1f8651bfd53f21b66b62903383ac2face80f4752cb81f6bd930d31733829664c
Previous block
000003713632f43cdd33b660f1f3323f61322c75cca5b8dfda9eee16753e6d4a
Next block
0000031f1c8f2a443e27c02f731d0fcc4ed0202f9d01909f76b738f044b9ba25

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 1668 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
1f8651bfd53f…31733829664c coinbase1250