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

Block 19409

Hash
0000001784677cb011fd355bed8d403aecc8ee706c11636cc91b9a1ab0090bea
Confirmations
21824
Time
2026-10-10 12:11:03 UTC
Median time
2026-10-10 12:02:34 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
047baee816f7b7df6ea35624d8cfe82ff9925632e9d36dac55e0bd6b0fc25cf7
Previous block
000000099a8f42a02af5001ae143d160f6e1fbf31a75ffc9db6ff24f7e0996f8
Next block
0000008704b94167374d6441e856a05203afab4726a86f3d497edfa0975fa612

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 19409 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
a05c172aa3500ce8cb4aa3fce190f51d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
047baee816f7…bd6b0fc25cf7 coinbase1250