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

Block 18304

Hash
0000003239f320fda5700629e7a39bdbeae038e1ad1b705b469e1c5d917c3f01
Confirmations
23851
Time
2026-10-09 05:19:36 UTC
Median time
2026-10-09 05:10:43 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
4891aa1535459ffe62c261fe734a9f93ad25754e76fe5f3d4c3bb196ab6c4487
Previous block
00000004f4b348eeb7977eb9fd910ef259f005f1157e55fb00464625de3cdbab
Next block
000000b477c920340095f60fae23beabe9df57e7a3b4e6315b8d3f04ff918300

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 18304 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
56a9f09d5019b31b7139de48efaef21b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4891aa153545…b196ab6c4487 coinbase1250