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

Block 18983

Hash
00000117b745e170e208cedbfc39b760620bd7e60d55ed1ce780188378cb9208
Confirmations
21825
Time
2026-10-10 00:11:10 UTC
Median time
2026-10-10 00:02:08 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
409c7afb7b8e30e06c533c42b704be92e9851b50f4027c5c7dcb46d5c7a74031
Previous block
0000010f7a6e07ea47aa4ff36e309e9e7fcebf565e3283329c8ebf4b4ddfd3c5
Next block
000000ccf72e95ac628995c1294e462eabe526b1636626104c276d0c770be8d6

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 18983 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
dedfbc998154b4664d6675f184987cf7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
409c7afb7b8e…46d5c7a74031 coinbase1250