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

Block 20440

Hash
0000006a543ee1d051ba75686e67708a0430da32ec2304a78b4574df5e9a8281
Confirmations
21120
Time
2026-10-11 16:54:22 UTC
Median time
2026-10-11 16:46:10 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
52b9b9ad527db6b2d96fb387a63728f6282446d14db04bef2c9622c95a306764
Previous block
000000c11069539d87983f804019e790d8be5428da87c5ad1ccba83a2c20984c
Next block
000000ce1725eb258ca8b16e1e50b3d749ac0f989ecba03b5501336535f6c3a0

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 20440 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
8e4a4bcb5c8b621483bf5f99cc5c3928… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
52b9b9ad527d…22c95a306764 coinbase1250