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

Block 22372

Hash
000000bc5d9aed7f1bd3f2059042b599c0fa4f721033c2940c5d42d6821bed8d
Confirmations
19156
Time
2026-10-13 22:29:20 UTC
Median time
2026-10-13 22:20:49 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0028309697
Bits
1e01613b
Merkle root
c8fc69270a52344957e5dd4c67062a8710a5ed99267035de039cb8ba7c7b0ccc
Previous block
000000f4285dd5cd979606d3a7b26beac4bdde67336aff099bc7841cbebfbb6f
Next block
000000825f830b6629b29961444bf8d50e6e5542cfbacbbe5d21f86ae6f45b42

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 22372 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
7b3277b8a573005838b460a8df7c4ab6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c8fc69270a52…b8ba7c7b0ccc coinbase1250