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

Block 18894

Hash
00000072ebb8aa53e3d9285d525ad41f2f75cfcbd021b85864dcca34d811c90b
Confirmations
22601
Time
2026-10-09 21:40:02 UTC
Median time
2026-10-09 21:31:59 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
7f1dce5ca3e10a86360d290edd06c204c5b2d90f6825258cf0177c0f1c094605
Previous block
000000c300c41ae3f5fcda909eed1cbfbdca3417b667a16672a792a453126b30
Next block
000000754aaab050cc8128f6f51fbe8bffa8ce3b00d0ea9ce2f4511cbe3c3a54

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 18894 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
f77e3fcb4313f3464c3843afb1785f30… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7f1dce5ca3e1…7c0f1c094605 coinbase1250