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

Block 25161

Hash
0000000233a6ad301c855566e9810252131a498a82d451d382ee4b6ff3660c00
Confirmations
16172
Time
2026-10-17 03:00:51 UTC
Median time
2026-10-17 02:52:47 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
7070932013b7f115ee368d066367ecf7f95006a02e80330206367d86ec9fd0ee
Previous block
000000cd758903f04472007f8addd2d22ceb340865a4bd621cd6072dec55654e
Next block
000000be24e92d75fb8bdd7757995e56edd556d9ca39bc098d337014b7d457c5

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 25161 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
fa171f5737f5bb1ed76560b7b9abf174… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7070932013b7…7d86ec9fd0ee coinbase1250