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

Block 21019

Hash
0000009127eb8e3d943810f70e7d959b1491721be6365fdf0ac4da80f229465a
Confirmations
20344
Time
2026-10-12 08:52:40 UTC
Median time
2026-10-12 08:44:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
6e43bc645ce3f10a36f5beb62ca69fef27fc5cf53d0f98f72edaeae323033fa7
Previous block
0000004989d2169f231dd0e928d25eb68526cfadb560ef19e7959ff93d03a920
Next block
000000730a510d6f51229dd931f2efec5edb00a538d74c182458e810214892e3

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 21019 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
47221fb6a057edba178c0bcdf732be63… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6e43bc645ce3…eae323033fa7 coinbase1250