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

Block 21548

Hash
0000010181307b3393216b57b8d8140d4b6d7da341e32faf697527dcd18a19af
Confirmations
20452
Time
2026-10-12 23:37:14 UTC
Median time
2026-10-12 23:28:51 UTC
Transactions
3
Size
3,182
Weight
12,212
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
209d645dddc8d596dfdd99514584a98df42921b26876c619b175c7769c79f3e4
Previous block
0000001d5bdeb390db53c07fecff08832c94db630e81862f3747b5edf067e051
Next block
00000063564172643adb6df17bf31922c59a6b07d3270cf11ddc43b7ecb14dd7

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 21548 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
dfa467fa86a6c2afeed48f506d66bda3… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a0e993a46adf…0565053b051f coinbase1250.0000062
c97f500b01f9…33fdcddd9c4a pays to P2MR122.9998510.0000031
66cb8153cc81…2bf54e944665 pays to P2MR1246.99998740.0000031