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

Block 18230

Hash
000000f19bccd98f2bcafaa770ea80f416d58143d54d21e34e9a4d00be6afa65
Confirmations
23846
Time
2026-10-09 03:15:20 UTC
Median time
2026-10-09 03:07:18 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
fce1e21b269101162bcdba674f067ddba3482ea3f4ed0e4f37b2d3d95f1c26aa
Previous block
00000005870023fd98e13139ea8e6b5fa6188ee18a81a09bc669a4ab6af8a17a
Next block
00000017082f39a538c040d1407e12b46d8e35dc6d8faca649f2387196b718aa

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 18230 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
b3833ffe0fa1d6e187acb0e7157e7727… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
fce1e21b2691…d3d95f1c26aa coinbase1250