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

Block 25430

Hash
000001720cdbc7497815e6610d7b5d22adb8bbf9c2276174ba666660e8a8ce40
Confirmations
15889
Time
2026-10-17 10:22:04 UTC
Median time
2026-10-17 10:13:34 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
feb859605b84eb4fcf1b52142e3693635a5e1b750ea29216277d7ae228a87576
Previous block
000000d6390202c9bc7031951524d6e418ffa2102a17392c5709acbef139fc01
Next block
00000028496fe03f3d808db9370f825eb8afc08ba5b3abb9edd0d79209b2230e

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 25430 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
4759c0cc116271775393ebecefce3ae3… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
feb859605b84…7ae228a87576 coinbase1250