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

Block 37391

Hash
0000004911ab8610f1b602f8f251a0b2e1d2d12aafd4660eb48b5b23aa7610c0
Confirmations
4933
Time
2026-10-30 21:18:02 UTC
Median time
2026-10-30 21:10:03 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
a3d38eb73a11421bb0b7eb259d99bc8b00d8e65ef760cfb73d8999fb395742e2
Previous block
000000914955a8c693712cab6d4b5a10729f65a9cbe4421b7c748c1695870e48
Next block
000001019231c6124be71ad68dd31ed8ed6a4f74034873f83a37684855e80d06

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 37391 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
3b21f90afa4241d970db80525c0ed1c7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a3d38eb73a11…99fb395742e2 coinbase1250