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

Block 19312

Hash
0000009ae8a20a146a2cd126f690ad0f4ff0b6aed02ac3b742ddd29632bb03b8
Confirmations
21370
Time
2026-10-10 09:28:20 UTC
Median time
2026-10-10 09:20:12 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
8e992126a6e898522166b3153434754e46b4096ebf3704cbf97cb648036b6ce3
Previous block
00000027ec9b815df8ee7cc74151c6d6bd2af84953d7f2a645746584352b99bd
Next block
000000184f39e4cde10720f5f764bf1700bf93ec5ef25a99a4bec1b4c7aba05b

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 19312 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
c7155c3872a8c0c7a9781b77afb8c942… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8e992126a6e8…b648036b6ce3 coinbase1250