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

Block 18030

Hash
0000002354e32d9fc25ea41b46ebe9d97d850744066b91429f2a0edfa10fa5cb
Confirmations
23616
Time
2026-10-08 21:38:12 UTC
Median time
2026-10-08 21:30:02 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
4cd22ed2c46aa9c760071dba0213567af9bb68977d1e4e77e6ae749cf60f883e
Previous block
00000001ef78d1a2b2d5dd88a14ca89ee01cb09d8ad7f5f51e584076199524a7
Next block
0000006735ef21d18abd1fee38022130678b34840e08febb760c328c867d1b5e

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 18030 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
fdcf8d315720bc653598a6d9daff9172… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4cd22ed2c46a…749cf60f883e coinbase1250