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

Block 37619

Hash
0000004abe1311658215bb835362659a37ea4f7d229b7634af176ff7faff0efc
Confirmations
3772
Time
2026-10-31 03:21:20 UTC
Median time
2026-10-31 03:13:33 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
916c23afbafe3677ac3039b66001963587b25c89f735667f85ecf9ab7441ae46
Previous block
00000123a50e01ff416c651132401ec9290b03d764ef755a4429fca65213bfb7
Next block
000001b14cd1b830b03b1f5495a348850bde5a04a8e5d76975b6dcf062952249

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 37619 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
0c02b5a463ef71108b4f5608da3d2259… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
916c23afbafe…f9ab7441ae46 coinbase1250