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

Block 18794

Hash
0000002012ccf6012bf1e5fcaff36b2d4bf508a79916a89744b39f4fa2b62c0f
Confirmations
23578
Time
2026-10-09 18:54:03 UTC
Median time
2026-10-09 18:46:13 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
99d4d1fb5b7f21e13801ab0301c2dcac3ce223827120930c8b4e53c1a8861441
Previous block
0000008d345262d7d3816bc958dfd524e4bcb9fd5f30fdc6e90fdf27f45d6da4
Next block
000000d1d622aaf094aba2481550dc21b4e3574585d7ac78608373149d44066d

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 18794 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
a7d1d5d3c301724fb673aa2c287ae429… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
99d4d1fb5b7f…53c1a8861441 coinbase1250