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

Block 18235

Hash
000000672479f75037e691eb08d2d3ebeaf1a0f2cfc75983c72ca0647912b8f1
Confirmations
23751
Time
2026-10-09 03:23:52 UTC
Median time
2026-10-09 03:15:20 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
228e044f5a7bd74e99d38e83e368864ac8d6c3488deb6145808106d134227b0e
Previous block
000000236a92bd02e0e017307c91aa339613d6531a728e1d9fdd3e37bc9b729c
Next block
0000006b95174eab7bcdca1693c6c5eccc3ba3ee620bf5a13f849fd2b7694c85

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 18235 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
cb7eab68bcb9e6764fad4655481307bc… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
228e044f5a7b…06d134227b0e coinbase1250