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

Block 18058

Hash
000000993e96e677ae8e55fee006a8abc4c8a66ded50536c0e496dff97e852ec
Confirmations
23463
Time
2026-10-08 22:26:47 UTC
Median time
2026-10-08 22:17:42 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
a7dba7ee5e4d1512c44f2709aeb350982f05339f04c4a0ed8024afc25915ef37
Previous block
00000005f610fce01226144cfd6b2b1e8e6cf60d429beaae260bcaceae69945f
Next block
000000295ec6bc28646a8260b8cc4992f869e43a9fcbdd226b08b7e4e99f5301

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 18058 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
14009e69cc6ad336478a7b4392352e90… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a7dba7ee5e4d…afc25915ef37 coinbase1250