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

Block 19611

Hash
000000481faa81bbeaaf80322cb8d9df2c529e445051f6028469a9446bd62923
Confirmations
22759
Time
2026-10-10 17:48:47 UTC
Median time
2026-10-10 17:40:40 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
b550a577ec5d53db98895ebd8cdb6a4f1067c4fd594ea61c411d65a5616046ec
Previous block
0000001e33c84edd2f8263c27174a2b437d704af9d65c7abc70976858ddd4eb6
Next block
0000002313b3dd2c411d1324ca6b85982719c629c7dc8d73c802d6135c4ad0d8

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 19611 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
e6a0f8f47fd16978816e0b79f8d76947… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b550a577ec5d…65a5616046ec coinbase1250