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

Block 20171

Hash
0000005e6dba30b83747e9c0c84e08ba80ab768be41be127ba27d5cf916a30fc
Confirmations
21519
Time
2026-10-11 09:30:19 UTC
Median time
2026-10-11 09:21:20 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
8324f420b1ad5b942e247d8a7417db831930aaa70dd4e3698a36d25d0b443b12
Previous block
000000abcd7c5236590ceac73cf49a98921f3b8e36f360fff4f452795a079ed8
Next block
0000000a78bf72d4c5809fd2e54fc4c9eef3554b79a2381d02197e28fe812224

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 20171 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
6deb30b72706d94ec7d063baf2083b96… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f00198fd191e…5f8bd25b1ff6 coinbase1250.0000031
ef1007263fde…d6a697855a98 pays to P2MR1236.99995640.0000031