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

Block 21366

Hash
000000ae5367a79de87f0230d99ff3d0ce71b09428fffcb996fb3e58ea39bca6
Confirmations
20768
Time
2026-10-12 18:35:45 UTC
Median time
2026-10-12 18:27:41 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
d3ce33971d1ec6a70b20f9017b216fb815c1279de25427cfddfaf820105e7dfb
Previous block
00000014e262519e02ca2a00fd747cf1862d6d9ad71c5cc0e6efb58df45268e3
Next block
00000103e1d7aa90e67a156e24218907c55168e9e31d81a4d767a1bd9b408520

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 21366 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
6e260a699750ac803cfbbb93e2b369fe… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d3ce33971d1e…f820105e7dfb coinbase1250