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

Block 18264

Hash
000000e500e17e54a4bfb16bcdb5c376d8cfa75cefad1be30424dc5e1d2b9c8e
Confirmations
22714
Time
2026-10-09 04:12:37 UTC
Median time
2026-10-09 04:04:48 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
98db80f218b84373d8dc1299d9f33c5efcfb65ce92d874d4eb4849d0509d53e9
Previous block
0000006615184be22cbe866ed9e1dea158ad567bfacdf97fed3a7c9e74bbcd50
Next block
000000080b11c34e37fa2d54357baa832d73c7da5c4c398f2d76a13883816764

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 18264 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
a61d3c55ecd73a5174230878c4795a5c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
98db80f218b8…49d0509d53e9 coinbase1250