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

Block 20594

Hash
0000004c40f464e2bf4e3df21a6862d80ab635c92d86d9cb04c0471d293f59e1
Confirmations
21541
Time
2026-10-11 21:08:47 UTC
Median time
2026-10-11 21:00:31 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
f5b7690cf018b78e8ac1c17bae813e14e2882d55ed1f7a069d51e6173d573021
Previous block
000000c690a1976fca4c35960b61db1b12ef4ea73502741b2c7126499f4d0417
Next block
0000008f919653d64c50f50a1bf7d705573489ba82e8f8dc9be4504cf40ff4ac

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 20594 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
04a44500b545eb847e76200a318eaf5b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f5b7690cf018…e6173d573021 coinbase1250