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

Block 19487

Hash
000000bb366099fe4e4929e051393ea96d0f7ea0817a117a7588c4b48b57b6b1
Confirmations
22484
Time
2026-10-10 14:22:47 UTC
Median time
2026-10-10 14:14:41 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
6927e215461c176432201c84ebb8dbf4115c9e5ed960179a4c8e60d466ae2952
Previous block
000000fe0d3a722298d0d5f1c177e68393fad9f2655fe5c3567c9394e8d84fd9
Next block
000000d806af1e9601d5f2a0c963831c574acbdfe19e9b28c28fc8fcae772e1f

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 19487 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
9ebb59851316b377d5adf1bf37325e8e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6927e215461c…60d466ae2952 coinbase1250