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

Block 28509

Hash
0000006109ecff70b2ee4430e139bd1f0fa21e6468be579e07e33ad185a67dbe
Confirmations
12003
Time
2026-10-20 22:56:07 UTC
Median time
2026-10-20 22:48:13 UTC
Transactions
2
Size
6,663
Weight
15,153
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
442a5f00045bcfb28097a3336a07624df3d1c83808f2b4d2838fcd24fbb165cb
Previous block
000000a73ccb332bd986903b9dce3e299d22fa94149a7f9123e0f525c3e11a80
Next block
0000004470c8eeb702ae3c842b1eb44a8d343affd4397c1f1cefa6216e8a4737

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 28509 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
cd116ef8c5cfcc77598806db1430d528… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8212f71c1c88…9b61fa44449a coinbase1250.00002088
6c46b27a3c27…8e982ddbf65d spends P2MR pays to P2MR110.999979120.00002088