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

Block 21730

Hash
000000d9fe4c2812a44702740812cf2c25dad5dd9c8099ceac3fd8b46095a64c
Confirmations
20104
Time
2026-10-13 04:44:46 UTC
Median time
2026-10-13 04:36:15 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
6e5fda35bff9bd0074bfb50f11a396f2bcbe2df0acc05c8f19b06459f0671b39
Previous block
0000006fca2c7161d738fabfcd4c70776c7bebee172ad0965e5e127d7f771b01
Next block
0000013382feb44baa47f18f3bf73e8259247112f4269ceff41e96e5432c8dea

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 21730 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
e0f288258842d3a0a947932d0793477e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6e5fda35bff9…6459f0671b39 coinbase1250