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

Block 25580

Hash
0000003bf6fa34509c138ea9144058e02f9e34865809ea48f570100e5834a442
Confirmations
16660
Time
2026-10-17 14:28:46 UTC
Median time
2026-10-17 14:20:49 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
6ef91d3090130ead5daf4e62275a876577071398b1e7227cf51d9c5966b8848e
Previous block
0000003316aa58caef567fb6805203479246bc2fc9e4493eae8f9323790237e6
Next block
000000f3b3927f1d40a2d4e83eaff2dca783cd3ff3e53f912bc086565f53f6d9

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 25580 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
8f34307370e04250b35d710bb8813d24… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6ef91d309013…9c5966b8848e coinbase1250