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

Block 688

Hash
0000011bcf1ab9c3c7b4ec006b41b5a2e581dc15352409bb1ad7bcb8c5e6c8fa
Confirmations
41388
Time
2026-09-15 20:00:05 UTC
Median time
2026-09-15 19:52:34 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0011265153
Bits
1e0377ae
Merkle root
00ef016b98f6c38278156b6a7a441f98e0a7712cee27128050e69a2e2ffda9ff
Previous block
0000029dffd5e4091d94503946cc54aa95994383508fe7be5340dd066a733dd7
Next block
0000025b768351eb1777022b64d7c82e185f724d0328ed6df97dcc87e42bda16

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 688 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
00ef016b98f6…9a2e2ffda9ff coinbase1250