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

Block 22174

Hash
0000011cf1ac065c02734e8acb5c5fa15797f7d0848f9c3e63065774cffd8012
Confirmations
20198
Time
2026-10-13 17:05:06 UTC
Median time
2026-10-13 16:56:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
88292c639fee87ab6bc712b441a29786336565d0c22fdfa11840b89490a4afa3
Previous block
0000001acf4735b03d61b42f9017586a1e2c58cb5d6a774a9dddf111392e0d88
Next block
000000b43c02b5857ff61fee43a52fd6a38db20a46498d6870acf98e0ce5975c

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 22174 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
5cef862100b21219d47020e2da85dbca… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
88292c639fee…b89490a4afa3 coinbase1250