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

Block 37550

Hash
0000022c7eb49ce57a45408cb1c5e047bf29b302bab1f744ba5ce6b8a76750b0
Confirmations
4769
Time
2026-10-31 01:32:13 UTC
Median time
2026-10-31 01:24:33 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
3b4ac1807360f4bdfa9be6662d8bde57cac5d5ee6460281ad866f22e991b5fce
Previous block
00000252307025e4cc94931dd0e6d8d5e4d1ce86c99eeff28250532e152e263c
Next block
00000138cce5fcf728107c171033d0f5c1753febd9c2f77fff2f682c25ceba64

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 37550 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
1bb480f26038ef713a21cd318b1141b6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3b4ac1807360…f22e991b5fce coinbase1250