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

Block 18330

Hash
000000098ce7a2f088f9b00cf15ccfad963ad24e8765d4f2edbd252bf862fbe1
Confirmations
23942
Time
2026-10-09 06:03:20 UTC
Median time
2026-10-09 05:55:01 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
f99ac02d9f9269b3a708b2b5d92a50aa7c65f06fb035c5b8677bf8993d6689c2
Previous block
00000069861405d82b799be33ad046a69d950ac346e1d2a383f7f9f645164ae3
Next block
0000002d4e0606b2068731808da498d149b78b0def9b8b909a84703b83ebfc6e

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 18330 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
64a5db2a00cdefd65f009aa18ace2f89… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f99ac02d9f92…f8993d6689c2 coinbase1250