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

Block 25940

Hash
0000016628744ce69fc55276427c46a9e71ebe24c48cec6717d318acc34484be
Confirmations
16654
Time
2026-10-18 00:14:19 UTC
Median time
2026-10-18 00:06:18 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
250af19f0db3d9ac88e7d4cd9aa123ba58e335161ec3d15b37394f42e0bde674
Previous block
000001492c5697dd10771ad5ac3363b3035ef4e98549657e1e99d3a91a2255a5
Next block
000001738d786d7ce253fcadea9a5dc7cc14fc5bc3f4f5ef651cfbc985fc0264

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 25940 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
049c9bf320a9c3aca225bc0d63cc0463… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
250af19f0db3…4f42e0bde674 coinbase1250