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

Block 19520

Hash
000000c62f4c85e46c42c6bf1f3dc3658ccafc5a02b3b5c2537e7982ad890cc2
Confirmations
22579
Time
2026-10-10 15:16:45 UTC
Median time
2026-10-10 15:08:16 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
a4a98f7f0618d409abf30a1b810efc0f5144a79931cdc3a16de6561137a293d8
Previous block
00000053428645ac7ed99cc03a28062d0bc3536825cdd64c4b215bb6373d274f
Next block
000000e701804994bd3fd562cbf4c45ac723fc9ed6169f6117b05923b88b90b2

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 19520 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
bf966774350bc98d4fd1ab879ee6217a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a4a98f7f0618…561137a293d8 coinbase1250