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

Block 25289

Hash
0000004ab9c8adb2547c7aa467d46131511ad5d2435485ec163ac6ff3ff67740
Confirmations
15621
Time
2026-10-17 06:29:59 UTC
Median time
2026-10-17 06:21:35 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
0a7c8dbfadcb5591ca114c03ac68ac08ba43c24d2923991b629516ae3a783a08
Previous block
0000013f797e25a6c660c69c9ed9d4a6ed871b32bb2e60103cff16de1b080f5c
Next block
000000ac1c3d33ca00722f0cecbba678a8b57c1ed88bdcd27daa2d6e0ff3de88

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 25289 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
9dd09c908e236e417e5ef4dc20bf7942… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0a7c8dbfadcb…16ae3a783a08 coinbase1250