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

Block 25533

Hash
000000840a8167f8f1b9a0e8c93a27a2666f0e14303e57e0f412459480cbd8ca
Confirmations
16707
Time
2026-10-17 13:12:55 UTC
Median time
2026-10-17 13:04:35 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
c7444f88e81da2bd6dda11f0496ef26298d49349d7cb2acf27868df1dfae44de
Previous block
00000092588f39185d438145793049911e43259791310a20d048bd3099982bda
Next block
00000096a75deb7061d11a867457cbdf17cb5d8b33e898f2b490d264ab59e0b7

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 25533 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
1cf79c1ac157d807a922a03a342660dd… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c7444f88e81d…8df1dfae44de coinbase1250