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

Block 19098

Hash
000000a1db4af6354204b349814dfed6b6a36e0eb473306b800580ad9e6dc82f
Confirmations
22217
Time
2026-10-10 03:26:46 UTC
Median time
2026-10-10 03:18:14 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
941a3e54611c2adafb9688ee61e02d51b7ca867f2b41052743f3e6d4d3c988bd
Previous block
000000e9067e0ccc80b82bc9553d2fff1636325d2d39eae167040262a986aea5
Next block
000000ae17ced2f21c9e199fcad36c48084d61edf8b7b4d0766f8ef3eb423f5f

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 19098 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
4980dcb5ea5d4582bc6a3c5ca55070db… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
941a3e54611c…e6d4d3c988bd coinbase1250