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

Block 40143

Hash
00000172b40087dea59b10a3bc6ea4e33a5d0dc0912a577d5146671cca766ebe
Confirmations
7100
Time
2026-11-02 22:12:23 UTC
Median time
2026-11-02 22:04:12 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
21e508e3526314ccbb1ca6d02794a9587bb2f6d28185236047a32aa96a61ed98
Previous block
000001f80a336bb8422f4f8778164ca3ddf46f363269c31142a3bde1801d74a6
Next block
0000023f7c7fb58e2839ab9ccfb0470d2b97170b86de4eb29dd9f9a09ddad69e

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 40143 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
bd495864adf34e0a656ef4ab14f32fe5… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
21e508e35263…2aa96a61ed98 coinbase1250