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

Block 25772

Hash
0000006914f55d7cf57a9705eb99dc2b004f5f40e723aba0ee80e50a6e78efed
Confirmations
16768
Time
2026-10-17 19:41:21 UTC
Median time
2026-10-17 19:33:19 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
808bf6dbac763117befb1ef224be7327b15f09af8cb842872c52e4ef31ead09a
Previous block
0000008d8dcc1d7adf90e15d5ecd4c0906e72dc8cc6f2dd60e1492f92b1ae7cf
Next block
0000004391e3ff620e425072afd5268b264e9ce926c4f359bef470b9056a8d6d

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 25772 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
f5bec0da96fc0ef9aad9c1cddbad976f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
808bf6dbac76…e4ef31ead09a coinbase1250