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

Block 18792

Hash
00000015c3bc024085da42249d471f9c6746aa1d3ad7eb9e4b52c82f3935fbd5
Confirmations
23577
Time
2026-10-09 18:50:48 UTC
Median time
2026-10-09 18:42:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
9e32c45cb1300ccb774a3ac122c2f2fbe6d8c4ffc608bf129263a06299273ef6
Previous block
00000039fd8f2d72800d9867f2d5068de7a1867107996c175c419c8a5072a0a2
Next block
0000008d345262d7d3816bc958dfd524e4bcb9fd5f30fdc6e90fdf27f45d6da4

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 18792 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
ed39593a6f0544ecec12766cff5916c4… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9e32c45cb130…a06299273ef6 coinbase1250