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

Block 18209

Hash
000000e6a86cf11b9d103a2d45d9ef77b3e8b13ade88f57cfe1f1ec39ad90519
Confirmations
23708
Time
2026-10-09 02:41:08 UTC
Median time
2026-10-09 02:32:50 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
7e1ac6017e145e388692a4a02b89fad80e4a9b382eb23c5ac03d9d45366ca60b
Previous block
000000885722d03bddf24a588b882ca483c352d052a8d1de25c437b2f6992b73
Next block
0000001aeccf4bf6d2f5e44877acd4cd0f1fbb27b74fd637e5d6816e0e48e392

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 18209 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
a82272070bba4698c26014b965e6ed55… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7e1ac6017e14…9d45366ca60b coinbase1250