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

Block 18364

Hash
000000be8f97dfab5d23ba69fb3c64bbfae0cbbb66a90ef70cc8bc4c727ee862
Confirmations
23801
Time
2026-10-09 07:01:33 UTC
Median time
2026-10-09 06:52:49 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
c7de5693f027586e3d3473a90143c0ebeb702e6f6ab4a93813cb00fa56bb0292
Previous block
000000a77f1c55ca944157b7e139d82c5875f7dc8f8ae86f836b753010f5a1c4
Next block
000000d5af140f87ad52e27631d1d00bc44fda90000bc2763da625375acac360

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 18364 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
9a2bb224be1abbbeb3d37ec454a95ca7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c7de5693f027…00fa56bb0292 coinbase1250