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

Block 22638

Hash
00000151d5fa935bef122c72a898b9f0d62d66158a058ed67fedfa17ccc8775f
Confirmations
19412
Time
2026-10-14 05:46:27 UTC
Median time
2026-10-14 05:38:27 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0028309697
Bits
1e01613b
Merkle root
9c1a48e4932b806e21a0ddd299f2d4563c75f61f70be4e4e6484e0f70c4d377c
Previous block
0000015d099108cd59e606fd6015e91afed3df763ac38437aa3929c4d6bda09b
Next block
0000011f16886a7ca78b8a74bb500dd4df6479f80ba0a2e7668e090dfbab2817

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 22638 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
630ebc1371abfce2fd6cb99141d7e22c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9c1a48e4932b…e0f70c4d377c coinbase1250