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

Block 18152

Hash
0000006560de0047fc60ae2721c7741a3882b42cec318990fe9e248f85b951d4
Confirmations
23867
Time
2026-10-09 01:04:40 UTC
Median time
2026-10-09 00:56:39 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
ec9f8bfe837a3595e96cdd9084466ca6e58ea7bc30ab13a0327dd0eacf7d7720
Previous block
0000009bcdb30d16424dd8a9f8af0d4eea9097cbc0feea95deb3f28cc6ae00ba
Next block
000000ce5f9a0c0d489b21c829473ba144dadb5ad0898c7ea4d25bec897bba73

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 18152 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
30e6ed7b7e12151f1c6e928902fc7d51… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ec9f8bfe837a…d0eacf7d7720 coinbase1250