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

Block 2639

Hash
000000c3bf18bbfbd1756441b5637c5ac0025e9e400a6cccd0d823da6a0ecc14
Confirmations
37806
Time
2026-09-17 22:38:55 UTC
Median time
2026-09-17 22:31:01 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0011265153
Bits
1e0377ae
Merkle root
563139e58ddf038db9cbd1a4452c49d216bfd9f353b43c565d5a6a68548866de
Previous block
0000027c03e6c8bef61b14ecc39c5094e2b0fcb16c363087362e68865d56cce4
Next block
000000889531e74781ced93578da2e920e1ce3b074af1ce78c4261a2bb7fbe04

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 2639 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
563139e58ddf…6a68548866de coinbase1250