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

Block 22004

Hash
00000091596386fd01127de39cafc1fc6364ffcab4ee279ca32b4af9770143f5
Confirmations
19045
Time
2026-10-13 12:21:21 UTC
Median time
2026-10-13 12:12:56 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
7f20018552262e15c506ab9884eda75b24ad3a61bcd16914062043d4eeb3e6c7
Previous block
0000010bf196ff4963353f64206c973a6267c05673912c7aa732c73865dba3a6
Next block
0000006f8d647a65e4ae6c297c13a4a51bf648e37c563d1f5bbda29502b48d73

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 22004 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
32d86c56867aba15f30ac3412cd49145… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7f2001855226…43d4eeb3e6c7 coinbase1250