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

Block 21879

Hash
000000ae98c265583d47306cab8f3d30b8afcd8e10fcaedc2a44a352f3932016
Confirmations
20083
Time
2026-10-13 08:50:53 UTC
Median time
2026-10-13 08:42:48 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
6d3c2cb90f7d603498c206ace64a95854a82e97638b75f0d4cfb85843597ca70
Previous block
000000ce8f894575fdfa48fb23bb9a99162781e5993ad1243e3d46551cf3881c
Next block
0000011addeaf05bd76c0badd5626a96e6d4d30a4462a43d24e48c9050965aa8

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 21879 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
cae16bd1240a9fdb35de67b54c612b7e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6d3c2cb90f7d…85843597ca70 coinbase1250