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

Block 18384

Hash
0000005f5093cf38331e24168a7c84df1c6fbee1a0d6aca2375fc2b0255d15f7
Confirmations
23694
Time
2026-10-09 07:35:26 UTC
Median time
2026-10-09 07:26:30 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
f18e87627d4c6944d9a0cec111c6332c37b0ac4ecdce7cc9c79d022734db25dd
Previous block
0000005ce377b9257e9c5650588e942f126a325570efab2aac5bc5fa99834549
Next block
00000118c28f97f7a04368f07ae4d518ff64fb883d3ab21ef63f096ac1879375

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 18384 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
f047a099194adbca73ec542604e4d62e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f18e87627d4c…022734db25dd coinbase1250