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

Block 20513

Hash
0000007f42f0403ffe68a7135771ee513811d792cc7c77875430dc110f63bd12
Confirmations
21813
Time
2026-10-11 18:55:38 UTC
Median time
2026-10-11 18:47:05 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
b4ea581a16631aaafbc41937cd03673541313afca687e7e81d32f24c2929680a
Previous block
0000000281bf117c77ae53c08b2f4051f5921699965d09900315e764053666c1
Next block
0000002c23bc017240fa1cc2516f941168c9462bd81a1533293603fd02c432b9

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 20513 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
ae60b2d6b9d020c1faf72239249e0d41… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b4ea581a1663…f24c2929680a coinbase1250