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

Block 37571

Hash
000002150a4d0f8fa9b1f90fc47e0c4eccd6179579640b077293ad8a90ffe19b
Confirmations
4672
Time
2026-10-31 02:05:36 UTC
Median time
2026-10-31 01:57:30 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
54d3091c7bf83e7e8a82e20da4cf590bea870452b10b90c930684e80d73f5b10
Previous block
00000015d873c07a0225776bf45b2669ee9e47cdc2658da9298af23103f513da
Next block
0000014ee0c33da0f6b5a39801b29267bf90da49beef48f3bef839846547d267

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 37571 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
004e69cac8a4dca6b848bb27ed1d355b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
54d3091c7bf8…4e80d73f5b10 coinbase1250