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

Block 19924

Hash
00000001f0487c214f1632716693739cfa9490de22ebc5d70e372676eb2ebf72
Confirmations
22174
Time
2026-10-11 02:31:34 UTC
Median time
2026-10-11 02:22:40 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
f4283bb6029a56b8bf8add852fdf982e800c01b4392707bef82304dc54036d65
Previous block
0000011a48d404ebbc62e4ff9151827359262a2be6dbf170328dc1072f082656
Next block
0000009922d32a2eb729cce0f3f1f6eb941dce03371550fdd11562908656f586

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 19924 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
9d672911a056d57ed18ac60220522a7f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f4283bb6029a…04dc54036d65 coinbase1250