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

Block 18302

Hash
0000000792e4e1a57dff04edd91c50e78ff31456db7db31f67837d591d0e620d
Confirmations
23850
Time
2026-10-09 05:16:15 UTC
Median time
2026-10-09 05:07:12 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
8881453600c7bb5d5956b93979b1ad1a5ca251846c323ce88d106f7fa5720237
Previous block
000001122dd80aee6daf4cdb3c86e7b0ac1fa4fb96aa13b3aafb377f0a6ffb76
Next block
00000004f4b348eeb7977eb9fd910ef259f005f1157e55fb00464625de3cdbab

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 18302 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
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
e622493bab1dcf59cbe600c932a54609… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8881453600c7…6f7fa5720237 coinbase1250