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

Block 18210

Hash
0000001aeccf4bf6d2f5e44877acd4cd0f1fbb27b74fd637e5d6816e0e48e392
Confirmations
23766
Time
2026-10-09 02:42:48 UTC
Median time
2026-10-09 02:34:23 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
236f93904aaf1bc70ce791fccf6b69bfa767d7130a6eb1b0c2c7d9fbcde26f2e
Previous block
000000e6a86cf11b9d103a2d45d9ef77b3e8b13ade88f57cfe1f1ec39ad90519
Next block
000000468c8ba0384cfac54501606d9b96d828dc57a80d6abee8af8176ccb1ef

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 18210 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
7795783047c0f60f26926d74c9019f87… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
236f93904aaf…d9fbcde26f2e coinbase1250