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

Block 19235

Hash
00000119891301fdd3a0f9ba5ae7220f0e6b566a432f5458df79d2f5c40673b6
Confirmations
22758
Time
2026-10-10 07:19:33 UTC
Median time
2026-10-10 07:11:25 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
ef4ebd315b7d3a51e70efa4667d67fa9e43e0c677f845c5cf3c9b6c3df20764b
Previous block
0000009ad15f1e2ee546f040148b8854d0d5d4c52a4b6897c0b26fd374c1ba72
Next block
0000008fad6aa9d229397d5e4434fdddef7a24adb3662eefdfd6b0e5d43fbc3a

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 19235 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
bf80e467412cae2ea74c79fd18952898… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ef4ebd315b7d…b6c3df20764b coinbase1250