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

Block 16638

Hash
0000003e734c5df3f21178386d66aac5da1aa11a72aa096f4e4c70a55b422666
Confirmations
25101
Time
2026-10-07 05:47:32 UTC
Median time
2026-10-07 05:39:30 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
64fd0cac22e348b814c5738a10b2e5027dd81c4b46a605dca50fbd753fef670f
Previous block
000000aa5fa5cd1a2ca5739427594ebafd4a9c562fa2b7444628da7bf0b8a9ce
Next block
000000c1cf2b926cd3df9414c758a97c10964122f40726ba2b58ff9a1e579f14

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 16638 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
64fd0cac22e3…bd753fef670f coinbase1250