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

Block 37570

Hash
00000015d873c07a0225776bf45b2669ee9e47cdc2658da9298af23103f513da
Confirmations
4678
Time
2026-10-31 02:03:55 UTC
Median time
2026-10-31 01:55:56 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
3fab3d3f01a4c09e0cbb09e221bcbedb95216b735f6260abfb3b59d8f14d2bf0
Previous block
00000187eafa4f98b407fd3ce300ea29e84a48aa660b790743865d63e2a950c9
Next block
000002150a4d0f8fa9b1f90fc47e0c4eccd6179579640b077293ad8a90ffe19b

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 37570 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
3f319be71a59c03c82af6f79e07ed8a5… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3fab3d3f01a4…59d8f14d2bf0 coinbase1250