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

Block 18710

Hash
000000d995f62d1179b2bd9bd9e839d8dcb8bbcb07219b9d98e6785bedf5798c
Confirmations
23027
Time
2026-10-09 16:34:43 UTC
Median time
2026-10-09 16:25:57 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
d23abbec0a35e887619713bc9b3c8b3da9f7b88bd51f2721451cfc7719c7c96f
Previous block
000000d7b926f6c8f8d1de0d671a1c5288cf5fdb1b45fed30032ff9f6df26faf
Next block
000000ec1cfbe95be3b71d338b775fd394761f166917ed32dc11f414f7e93425

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 18710 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
9ba4e95af64d438ae68c7289133ec10d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d23abbec0a35…fc7719c7c96f coinbase1250