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

Block 25308

Hash
000000f4d0662206de7e195a268d177b23e91b7f4f4a12cf198f301d7ebe1db5
Confirmations
15740
Time
2026-10-17 07:00:56 UTC
Median time
2026-10-17 06:52:56 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
a54c5e53c602f294c1296ed270022175ee95f1c744c8df3229597c3171e0961c
Previous block
00000126e09d3db97d8bd482f589e4e1a20be88936942ff42e27660a7715a61a
Next block
000000adf9dc51235004398c4f6ab4ad32e3afa79b399614091af48dfe7bad9c

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 25308 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
359552fd8f9b19504012f9771e2e614b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a54c5e53c602…7c3171e0961c coinbase1250