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

Block 18174

Hash
000000f10fb299f8aeafa80ae4429cc12f2b44f002ab5c97319c811e79d16bb4
Confirmations
23422
Time
2026-10-09 01:42:09 UTC
Median time
2026-10-09 01:33:40 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
6efa7f604dfc1d227393af5974fecfcb85b6c15eb7f4f4ad8b4bfdf2294a54fc
Previous block
0000002bd1a7056ca2dc6ba71930654cd81b8a6f40e428fcd277ca1553d4e4d5
Next block
0000002832deb0edbcad8521e779ecf74f6e8456a3900da6ed51c2b1e04403eb

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 18174 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
8225b2e55c49c205b017c5f55bdb0c2a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6efa7f604dfc…fdf2294a54fc coinbase1250