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

Block 19126

Hash
000000c04fc8ff39e4504cca2050858a6fec47f23eb1e84f78be5e8cb62bf35a
Confirmations
21797
Time
2026-10-10 04:16:40 UTC
Median time
2026-10-10 04:08:43 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
3f752bbdbf4017f6b1a99f634375050b9bfe48a98144a479f66b0c7a02bdaaf2
Previous block
000000b98ad096ab03119451ce87a4ac5345666896ec2166ee8507c4482ec79f
Next block
0000009ff51019a3286231299b93acadda7a2aea5741920423be2d0806547177

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 19126 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
995d7480c6dc9ec1454d0cca8beae2fc… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3f752bbdbf40…0c7a02bdaaf2 coinbase1250