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

Block 19908

Hash
0000008d623bc80bd2c7a3de96df3b8906a8fac49e39bedceac06efdb9992006
Confirmations
22224
Time
2026-10-11 02:04:28 UTC
Median time
2026-10-11 01:56:44 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
f3fab451b7a5058fae7c2c8854d6eac46748618c31b17f93bdb80c7c0502e077
Previous block
000000f5012f3014f80201a3854785ec06b591f13dae2f771543b488ea807691
Next block
000000f0db28c79d6be92aeada5e01ef620c71de1992718916ce47656f69ba1a

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 19908 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
5cf6978198c9aa9d47e605c22fc25536… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f3fab451b7a5…0c7c0502e077 coinbase1250